Thermos Stainless King Flask, Midnight Blue, 1.2 L, 183267
What Matters to Us
For over 115 years, Thermos has been the trusted brand for quality insulated vacuumware products, keeping your drinks hotter for longer. Environmentally conscious, high-tech drinkware has never been more in demand than it is today and Thermos have something for everyone.
Technology Matters: Thermos Vacuum Insulation Technology Keeps Hot Things Hot And Cold Things Cold
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| With traditional containers, heat or cold finds its way inside through the process of convection. | Thermos vacuum insulation creates an airless space between two walls, virtually eliminating the convection process and temperature change. | Your drink will stay icy cold or steamy hot no matter what the forecast. |
Quality Matters
Thermos carefully chooses high quality materials and makes products with consistent quality and reliable performance. This ensures the highest quality of the products by testing for quality throughout the entire manufacturing process.
Quality Matters
Living Green Matters
Safety Matters
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| Capacity | 1.2L | 900ml | 1.0L | 1.0L | 1.0L | 1.0L |
| Insulation Performance | 24 hours hot, 24 hours cold | 24 hours hot, 24 hours cold | 24 hours hot, 24 hours cold | 24 hours hot, 24 hours cold | 24 hours hot, 24 hours cold | 24 hours hot, 24 hours cold |
| Vacuum Liner | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel |
| Stopper | Twist and Pour | Two-part Twist and Pour | Push Button | Twist and Pour | Twist and Pour | Twist and Pour |
| Colours | Midnight Blue, Red, Matt Black, Copper, Gun Metal, Stainless Steel, Metallic Blue, Duck Egg | Charcoal, Gun Metal | Stainless Steel, Midnight Blue | Hammertone Blue, Graphite | Stainless Steel | Black |
| Weight | 0.67kg | 0.40kg | 0.53kg | 0.83kg | 0.94kg | 0.70kg |
| Dimensions | 9.4 x 10.5 x 31.0cm | 7.7 x 8.2 x 29.7cm | 8.5 x 8.5 x 32.5cm | 11.5 x 10.9 x 34.9cm | 13.5 x 9.5 x 31.0cm | 13.5 x 10.5 x 33.8cm |
| Weight: | 650 g |
| Dimensions: | 33.66 x 11.99 x 11 cm; 650 Grams |
| Brand: | Thermos |
| Model: | 183267 |
| Colour: | Midnight Blue |
| Colour: | Midnight Blue |
Arrived with a Dent, but Amazon Provided a Great Customer Service
The flask has arrived with a little but obvious dent and it was also not in its original package. However, Amazon was great at resolving this problem. They offered a replacement first, but as they realised the item was out of stock, they provided me with its full refund.
Having said that, the product looked otherwise nice, and I actually went to buy another flask (the food flask this time) and so far, I have had no issues with it. The food flask actually deserves five stars without a doubt.
Brillia
As expected from this brand it’s great – tea made at 630am still as hot at 330pm. Doesn’t leak, and survives all kinds of bumps and bashes! It seems no flask is ‘easy to clean’ – I just give it a good wash with a bottle brush daily, and use a Milton tablet to sterilise it each weekend to get the areas I can’t reach.
Just falls down on one aspect.
Great flask. Works well and pours through the cap without spilling. Handle is comfortable and of course it does what it’s supposed to do…keep things hot. One annoying fault is that the cup is not insulated and gets hot to hold. I would have thought a market leader like Thermos would not have overlooked this basic essential feature in the design of the product. My old Thermos flask which this one replaced had a very well made, insulated cup with it. Unfortunately it won’t fit on this new one. Apart from that, a great flask and I would recommend it.
Great to take to work
I’ve been using this for a few months daily to take my own tea/coffee to work. Saved myself a fortune as I work on the road. No more buying hot drinks. This product keeps your drink boiling hot all day. I’ve dropped it a few times so it has a few dents in the metal but it still works perfectly. A few work colleagues were in envy and have since purchased one of these as well
Great to take to work
I’ve been using this for a few months daily to take my own tea/coffee to work. Saved myself a fortune as I work on the road. No more buying hot drinks. This product keeps your drink boiling hot all day. I’ve dropped it a few times so it has a few dents in the metal but it still works perfectly. A few work colleagues were in envy and have since purchased one of these as well
At long last I have a flask like they used to be when I was a kid. Keeps soup piping hot all day which is handy when working in a portacabin. Would recommend this for anyone
Pretty, keeps drinks warm, handle could be bette
After buying a series of cheap flasks and them lasting a month or two before breaking I bit the bullet and shelled out triple the norm for this.
It’s very pretty with its chrome cap andnl metallic cranberry paint job. What I love about the inner cap is it has arrows so when you’ve loosened it and you’re ready to pour you know exactly where the liquid is coming from.
The only area that I think could be improved is the strap, it’s hinged on each side and just loose, as the weight shifts the flask can move position, it would be better if it had some elasticity to it.
Does what it's meant to, a well!
My neighbour back in the 1960’s and 70s had a stainless steel Thermos flask, carried it to work with him all his working life. Since then I’ve wanted one. So glad I’ve finally got one. Really keeps the drinks hot all day and I love the raspberry red colour.
Worth the money
Bought this for my partner for Christmas and he absolutely loves it. Had to order 3 more for his friends. Cannot believe how hot the water stays, never expected it to actually do as it is described. Will never have to buy a cheap flask again. Very impressed. Bought the food flask to go with it afterwards.
Worth the money
Bought this for my partner for Christmas and he absolutely loves it. Had to order 3 more for his friends. Cannot believe how hot the water stays, never expected it to actually do as it is described. Will never have to buy a cheap flask again. Very impressed. Bought the food flask to go with it afterwards.
Very good flask
Second one I have owned , lost the first one , highly reccomend , keeps drinks hot for hrs alot longer than others i have owned , i use mine in cold conditions walking mountains and over an 12 hr period i have bever been let down, wherby i have by many many others .
Only confusion was the price red cheaper than all the other colours…. so yes went for red …
Great product but annoying handle and faulty cup (i hope..)
This is largely a nice flask. It’s stylish, functional and high quality. My only issue with it is that the handle is too small to be particularly useful and also rattles loads.
A fixed handle, no handle, or perhaps a detachable handle would make this product superb.
~I have had to order a replacement as my cup began to rust (fairly quickly) and has allowed ingress of water in between the chrome part of the cup and the inner plastic part, not great & I’m hoping mine is just a fault product, not a design flaw – we will see when the replacement arrives…
The look of it is very nice with a polished look. Cup feels somewhat robust but the lid for pouring does feel a little awkward to screw on when you have completely removed this. Poured about a litre of hot water which i had boiled but left for a little while in the kettle. Poured a cup out after a few hours it kept it hot then waited about 8 hours and poured another cup which remained hot maybe not as hot as it was originally but still hot. Reached the 16 hour marker and it was still hot with steam coming out and still felt better than my previous similar products. I then reached the 20 hour marker which i believe it gives me confidence with this product. Did not really test the full 24 hours but at the 20 hour marker the drink was still reasonably hot but again still decreased in temperature from the previous cup that was poured but still enough heat to say that you would probably be able to keep your tea and drink it now and then from the thermos during whatever endeavours you have planned. Personally this does more than i need to as i want to use for me to take to work so realistically just needed to last around 9-10 hours and may use for the odd occasion to go out and about.
For long cold damp days at the stables in the British winte
I bought this for cold days at my horse’s stables, so that I can have a warming drink as I muck out stables. I prepare tea in it, add the sweetener and milk, and it’s a perfect ready-made piping-hot tea whenever I would like. I don’t really like the little cup that comes with it though, it’s very small and thermal, and so the hot drink doesn’t cool down for ages…it’s a long wait before you can drink it. I’ve bought a porcelain mug to fill from the flask, and that suits me better, as it holds more and the temp comes down so you can drink it. The flask keeps drinks piping hot for many hours. It does not leak. The only complaint is that it’s not easy to clean inside it. It should be sold with a long handled brush cleaner to get inside it, (but it isn’t). It’s quite new, so I just rinse it out with water after using it and it hasn’t stained inside yet. Good fluid capacity and is very effective. It’s actually better than having a kettle etc to make a cup of tea, there’s no waiting for the water to boil, or for it to brew, because you’ve done all that at home in the warm! It’s an instant perfect cuppa, just the way you like it.
This is a solid thermoflask which we have started to use – mainly for hot drinks down my allotment. It is robust and easy to carry and pour. It also has a decent capacity, you can get 5 cups of drink out of it, so thats two each for two people and a spare.
Now to the claim that it retains its hotness/codlness for 24 hours. That maybe true if you do NOT open it for 24 hours, However, if like us you have a hot drink and a few hours later a second one, there is no doubt it will not be as hot. My estimate is that a hot drink is still drinkable for maybe 6 hours max, which is long enough in most circumstances. So I do I think the 24 hour claim is slightly misleading, but otherwise we are very happy with it.
Very very good value for money and holds alot of tea and coffee
It’s a very good flask keeps my tea and coffees warm all day longest I’ve used it for is 12 hours and the coffee and tea is still hot. Cleaning the flask is harder by hand but chuck.it in the dishwasher with the lid off obviously
Very very good value for money and holds alot of tea and coffee
It’s a very good flask keeps my tea and coffees warm all day longest I’ve used it for is 12 hours and the coffee and tea is still hot. Cleaning the flask is harder by hand but chuck.it in the dishwasher with the lid off obviously
No glass inside - great study new design flask
I dropped my old thermos from the car boot onto the ground, it was the old plastic green one with glass inside and the glass shattered, which was my fault. That flask lasted over 20 years and was brilliant. I hope this one which doesn’t have glass lasts so long and was as good as my last One. It’s a great design this new one, brilliantly made and hopefully of the some results. Keeps drinks hot for 12 hours no problem.
Durable and effective at heat retention.
Durable and effective at heat retention. Seals OK if done up properly (even after a substantial amount of use). However, like other products in this range, you need to pour carefully as they can dribble a bit.
There are cheaper (plastic / glass) products that retain heat well but break easily (the glass breaks). And there are cheaper metal products that are robust but heat retention is mediocre. Although somewhat pricier, these Thermos products give you both.
Hot to trot! (Or cold!)
Be aware, that the packaging from Amazon consisted of a flat oblong box, with 1 piece of brown paper to protect the flask!, it was dented!!!! Flask sent back and a replacement issued. The second flask arrived and had the same sparse packaging, however this time it wasn’t dented!!! Hooray!!
With all that aside, this flask is wonderful, it will keep my coffee hot (I mean HOT!) all day.
Looks good
Only negative on this is that it only comes with one cup. we solved this by buying a plastic camping/garden one from somewhere else and now it’s perfect for taking a flask of tea with us when we go for a walk. As the flask is big enough for two on a day out, I’m not sure why it only comes with one cup.
Watch yer findels in hot water !
It keeps it hot !!
Made flask 7am . Coffee and biscuits at 2pm – the dreaded happened , my dunked biscuit broke into the cup and immediately in went my fingers to retrieve it. After the initial sheering pain, swearing, stamping and general hoohah ~ I was very happy in knowing just how hot the flask had maintained the boiling water and the failed dunked biscuit was just my higher power showing me what a good purchase I had made.
only by thermos if you want the bes
used them for years and got a new one due to my dad keeping one after his rubbish one gave hi cold coffee after on 12 hours lol. also good for the summer for keeping things cold. I have 3. 1 hot drink, 1 cold drink and 1 for keeping spare cold water for me or the dogs and put simply these are the best. also v hard to brake as trust me we have dropped , bashed and abused them
Sturdy Thermos
Loved the colour loved the capacity lots of cups of tea at the beach all piping hot. It really does keep the drinlks hot all day long. Only downside for me is the handle that goes flat which is good but wiggles around a lot seems not to be very useful when pouring hot drinks
Sturdy Thermos
Loved the colour loved the capacity lots of cups of tea at the beach all piping hot. It really does keep the drinlks hot all day long. Only downside for me is the handle that goes flat which is good but wiggles around a lot seems not to be very useful when pouring hot drinks
Hot or cold you choose
Arrived and it looks really nice and I made my first tea and it made me very happy because after 6hrs it was still piping hot….not tried over 12hrs yet but I’m sure I won’t be disappointed.
Nice handle to hold it with and a really nice cup as lid a nice size to quench your thirst.
Top quality flask highly recommend shame it's only got one cup
Keep stuff hot if you put it in hot if you put it in cold it keeps that stuff called so kind of does what most other flasks do which I am happy with it’s nice and shiny which I like and I reckon it will take a bash or two which my last class didn’t with a class inside
BEST FLASK FANTASTIC
his is very good and I would give it 5 stars well the casing is a bit cheap as it makes the noise of metal but the fact that it keeps your water warm is just fantastic sometimes I forget I have hot water in the flask and when I remember the water is still very hot.
BEST FLASK FANTASTIC
his is very good and I would give it 5 stars well the casing is a bit cheap as it makes the noise of metal but the fact that it keeps your water warm is just fantastic sometimes I forget I have hot water in the flask and when I remember the water is still very hot.
This is a big flask, it looks good, but more importantly it works well. It will keep a liquid hot for 24 hours, depending on how often it’s opened and how full it is. I fill it with boiling water every morning and open it a few times to make drinks at work. Then if I leave it a quarter full overnight you can make a good coffee the next morning (probably not tea though). If pours well and you only get a little condensation in the outer lid. The only criticism is that the handle doesn’t stay collapsed against the body, but this doesn’t actually affect anything. It looks strong and hasn’t aged at all in the few weeks I’ve had it.
Just goes to show that you get what you pay for (most of the time!). Don’t bother with a cheap flask, they don’t keep your drinks hot for long or get less effective over time (in my experience at least). This Thermos is a dream, spent a cold January day clearing a coppice and my tea stayed steaming hot all day. Even managed a final cuppa once back home and was still pleasantly hot.
a decent sized quality thermos that lasts all day
an excellent thermos. i make my tea at 6.30 and its still hot to drink at 17.30 on the tube home. most importantly, it holds enough tea to drink 6-7 cups which lasts you all day. got bored of finishing my small thermos by 08.30 and having to make tea or coffee in communal kitchen where there is never any milk or sugar. problem solved
good flask
I’ve had a number of glass Flasks over the year and we’re forever breaking them. Decided to splash out on this one. Its will worth it . it hold more than my last glass 1 and is smaller in size. Its had a for drops or bumps that would have broken a glass 1, but this is fine and looking good still. Would definitely recommend spend a bit more for a metal 1
10/10
Was spending 4-5 quid a day on coffee at work, fill this up Instead and I get more to drink and have saved a small fortune, will last a lifetime.
I’ve filled It up at 5:30am on a Friday, taken It to work In -1 to -3 degrees C (work outdoors) come home, forgot about it, opened It the next day at 11am and the coffee inside was still warm enough to drink (I didn’t drink it)
Really cannot complain. For me it’s one of those no brainer, makes life easier and cheaper purchases.
I take a thermos of tea to work every day.
I am the guy that takes a thermos of tea with me every morning to work. Most days I drink the whole thing. Some days I don’t. One day I poured out the dredges of the previous mornings tea only to discover they where still warm. Not boiling but warm. Call me impressed, keeps my tea properly hot all day, its still warm the next morning and it is really well made.
I take a thermos of tea to work every day.
I am the guy that takes a thermos of tea with me every morning to work. Most days I drink the whole thing. Some days I don’t. One day I poured out the dredges of the previous mornings tea only to discover they where still warm. Not boiling but warm. Call me impressed, keeps my tea properly hot all day, its still warm the next morning and it is really well made.
Great flask
What a great flask. Take this to work everyday and keeps my tea hot from 7.30 till 4 ,and it still very hot then. Very robust aswell doesn’t break if it rolls out of the van door . Cleaning is a bit of pain tho . But great price when bought on offer .
Great flask
What a great flask. Take this to work everyday and keeps my tea hot from 7.30 till 4 ,and it still very hot then. Very robust aswell doesn’t break if it rolls out of the van door . Cleaning is a bit of pain tho . But great price when bought on offer .
Fantastic Produc
This is a excellent product and performs as described. The reason for my 4 stars on durability is the weak link in the flask is the lid which over approximately 12 months came apart on the inside. I requested a replacement lid from Amazon but was informed they don’t replace individual parts and told me to dispose of the flask and sent me a replacement free of charge, so I can’t fault the service. As I understand it Thermos do guarantee these flasks for I believe 50 years so they are pretty much made for life. I know I can buy a replacement lid from Thermos for about 5 and may well do that, but I can say the flask itself is bomb proof and will last for years. So in conclusion this flask is fantastic value for money and the guarantee will be honoured by Amazon and I think Thermos needs to come up with a better lid to make this product indestructible.
Great flash
After too many breakages of standard flasks, have finally found a metal one that actuaaly works, and keeps liquids hot. Tried another brand a few years ago, and put of this type of flask as it did not retain heat, allowing liquid to cool too quickly. This one really works, liquid remains hot!
Great flash
After too many breakages of standard flasks, have finally found a metal one that actuaaly works, and keeps liquids hot. Tried another brand a few years ago, and put of this type of flask as it did not retain heat, allowing liquid to cool too quickly. This one really works, liquid remains hot!
Really good flask worth the extra money over cheapo,s
I needed a decent flask for work on a daily basis that holds enough for the day and stays hot all day ,I read a lot of reviews about loads of different flasks and went for this is great probably best out there ,preheat the flask at 6 in the morning fill up my coffee and stays hot till 6 at nigh
Just amazing
Very high quality item beware this item although some pictures have been taken it literally is massive which is a great thing.If I’m being picky the only bad thing is one sticker leaves a bit of glue on the can which forces u too scratch it off but I’m sure it will come of naturally after a few washes other than that it’s an amazing high quality product,would 100% recommend
Keeps water very hot and hard wearing
Thought I would leave the review after owning this flask for a while. I had a car branded one before and the handle snapped off and tipped hot water over me, but this one is much more robust. Stays hot the whole day, we’ve even emptied out the next day and it’s still hot. Easy to use with the twist and pour spout. Comfortable to handle and shows no signs of wear and tear – well after the year, used 4 days a week, 2-3 times a day. Great product!!
What a great flask!
It was perfect for the job. Holds both hot and cold liquids fresh for hours on end!!! Used it for cold water with ice in it while traveling and after as long as ten hours after, it was fresh and cold with no peculiar taste or odors like other cheap flasks. Though a bit difficult to clean, I definitely recommend!
What a great flask!
It was perfect for the job. Holds both hot and cold liquids fresh for hours on end!!! Used it for cold water with ice in it while traveling and after as long as ten hours after, it was fresh and cold with no peculiar taste or odors like other cheap flasks. Though a bit difficult to clean, I definitely recommend!
It is not cheap but well worth the extra money as it is of really good quality and is guaranteed for a lot longer than ...
Bought this after my husband managed to get 2 previous thermos flasks broken at work. This flask keeps hot liquids hot for 24 hours just as it says. It is not cheap but well worth the extra money as it is of really good quality and is guaranteed for a lot longer than the Stanley one I bought. Would definitely recommend this flask.
It is not cheap but well worth the extra money as it is of really good quality and is guaranteed for a lot longer than ...
Bought this after my husband managed to get 2 previous thermos flasks broken at work. This flask keeps hot liquids hot for 24 hours just as it says. It is not cheap but well worth the extra money as it is of really good quality and is guaranteed for a lot longer than the Stanley one I bought. Would definitely recommend this flask.
Perfect for hiking
Perfect for hiking, is strong and sturdy, glad to see the ‘Thermos’ brand is still living up to the hype. Only small problems, the handle rattle about when ‘flattened’ which is a bit annoying and the label for the word ‘thermos’ was stuck on wonky, but otherwise I would highly recommend.
Perfect for hiking
Perfect for hiking, is strong and sturdy, glad to see the ‘Thermos’ brand is still living up to the hype. Only small problems, the handle rattle about when ‘flattened’ which is a bit annoying and the label for the word ‘thermos’ was stuck on wonky, but otherwise I would highly recommend.
Worth every penny.
I honestly feel thermos underestimate their own product here. I am admittedly a black coffee drinker and do let it cool a bit before drinking, but I’m currently enjoying a cup that has been in the flask for 48 hours and is still entirely drinkable.
Having bought a few cheap flasks (I think we all know the type, less than a fiver from your local bargain basement shop) and they work well for a few weeks. They’ll keep drinks warm for three hours or so then fail miserably. This on the other hand has been wonderful. Makes the previous purchases feel like a dreadful false economy.
Given the awful weather we’ve been having, I’d absolutely recommend purchasing one of these, filling it up of a morning and popping it in the car. Keep some tea or coffee bags handy and if you do get stuck you’ll at least be able to keep a bit warmer than most. It really can be filled and forgotten about until the next day.
Husband very impressed
Husband very impressed with his new flask. Apparently it stays hot for a number of hours which is very welcome when you are on the road all day. The shell is very durable and looks great. The colour is more vivid in the flesh and looks fab. Easy to keep clean.
Husband very impressed
Husband very impressed with his new flask. Apparently it stays hot for a number of hours which is very welcome when you are on the road all day. The shell is very durable and looks great. The colour is more vivid in the flesh and looks fab. Easy to keep clean.
The flask is excellent for keeping your liquids hot without any change to temperature, in my experience that is with six hours. The quality is most satisfactory and the surface has a very nice feel and the handle I have found is a necessity when it comes to pouring.
I would have given this 5 Stars but when pouring you always get that drip that runs down the side whether you use the pourer or directly from the opening.
I don’t recommend using the pourer as you don’t get a smooth flow but that’s fine as you can just unscrew the top off.
I do wonder if there is actually a flask that doesn’t drip whilst pouring.
The best eve
I can’t believe how good this flask is. Purchased it just before our skiing holiday and I was so glad I did. We were experiencing day temperatutes of -26C and the liquid was hot throughout the day. (We were out all day, everyday, freezing cold but that was our fault, nothing to do with the flask :-).
I filled the flask with hot water for several minutes, poured it out and refilled with the actual drink for the day. The flask stayed cool on the outside, therefore safely packed with our sandwiches in the rucksack. I can fully recommend this product as it comfortably deals with low tempetatures most people on here will never experience.
Thermos King Size
Bought this months ago and it hasn’t let me down yet. Trying to save money by taking my own coffee to work and use it pretty much every day. It gets thrown around in my backpack and still the vacuum holds in the temperature.
Holds quite a nice amount, space for a cafetiere-full (about 3 cups) and a bit with added milk. Looks like a bit of a beast.
Has already paid for itself several times over.
Hot Hot Ho
When the flask turned up i was a bit disappointed that it didn’t seem that tough it just felt a bit flimsy but this has not stopped it from really performing. I make coffee in mine at 7am every day and it keeps piping hot all day. Last week I didn’t get round to drink the contents and opened it 28hours later and the contents where still to hot to drink straight away. Fantastic bit of kit.
Hot Hot Ho
When the flask turned up i was a bit disappointed that it didn’t seem that tough it just felt a bit flimsy but this has not stopped it from really performing. I make coffee in mine at 7am every day and it keeps piping hot all day. Last week I didn’t get round to drink the contents and opened it 28hours later and the contents where still to hot to drink straight away. Fantastic bit of kit.
Hot stuff!
We had a flask for years and years and eventually it met it’s end. I bought another one which was quite pricey but that lasted about a year. This was to replace it. Seems sturdy and comfortable to hold. Design fault with cup though, it looks great but it gets very hot in your hand. However five hours after making coffee it was as hot as when it was made. We had some left when we returned and it was a good 10 hours after the coffee was made and it was still hot enough to be drinkable. I just hope it lasts.
Hot stuff!
We had a flask for years and years and eventually it met it’s end. I bought another one which was quite pricey but that lasted about a year. This was to replace it. Seems sturdy and comfortable to hold. Design fault with cup though, it looks great but it gets very hot in your hand. However five hours after making coffee it was as hot as when it was made. We had some left when we returned and it was a good 10 hours after the coffee was made and it was still hot enough to be drinkable. I just hope it lasts.
Grea
Sturdy and keeps my tea hot. As it doesn’t have the usual glass inside I can bash this around and not worry about it. Lid is a handy cup and the clever stopper creates a pouring spout which means you don’t have to remove it completely when pouring, helps keep the heat in and means you aren’t trying to juggle the stopper whilst pouring hot tea out.
Grea
Sturdy and keeps my tea hot. As it doesn’t have the usual glass inside I can bash this around and not worry about it. Lid is a handy cup and the clever stopper creates a pouring spout which means you don’t have to remove it completely when pouring, helps keep the heat in and means you aren’t trying to juggle the stopper whilst pouring hot tea out.
It takes a fair amount of time to document how an item puts up to the test of purpose after purchasing and if it really is as good as it states, but I managed to make my mind up in less than a week.
I got into my laboratory first thing Thursday morning and was playing around with some thermocouple readers and finally found one I was happy with, a tested & calibrated unit with a new battery.
12pm at around lunchtime I filled the flask up with boiling water straight out of the kettle, enough to get right to the top of the flask and I shut the lid and allowed the heat of the water to dissipate through the flasks metal chamber and warm the unit up internally for around 5 minutes, I put the kettle back on to a boil and as soon as the button clicked I emptied the water out of the flask and re-filled the flask up, creating a good seal and let it sit for 24 hours in my 20*C ambient temperature laboratory before opening back up and taking another measurement.
Friday lunchtime I got my thermocouples ready and opened up the flask at 12:05pm (24 hours after filling) and put the thermocouple inside the flask, with a temperature reading of 68.9*C the water was still steaming and was far too hot for me to drink.
To then accurately repeat this process and get a measurement of the water that went in, I simply repeated my first step but instead of letting the water sit for 24 hours, I took a reading as soon as I filled the flask up. Which was 96.4*C straight from the kettle.
96.4*C – Start Temp
68.9*C – End Temp
96.4*C – 68.9*C = 27.5*C heat loss in 24 hours.
So around 1*C heat loss an hour.
The thermos flask works, it holds heat for 24 hours, it does exactly what it needs to do and meets the stated time.
I still need to do a 24 hour cold temperature test but I may wait until the summer to do that.
And of course I gave it a good test on the lake today fishing, with great results there too.
I hope you enjoyed my review and found it helpful.
Absolutely brilliant so far. It’s the best flask I’ve ever had. I can make a flask of tea in the morning for work and when I come to wash it out the next morning a full 24 hours later it’s still lukewarm. It stays red hot throughout the day. I normally have to put some cold water in, so it’s drinkable when I pour it out. The flask it’s self looks fantastic. It came with Prime on time and undamaged as always. I think it probably stays “hot” for longer than the 9 hours it says.
The only negatives I can see are as some people have pointed out is the handle and the paintwork. The handle basically has some movement in it so wouldn’t be great if you are old and frail or a young child. It is fine for a normal adult. The paintwork does scratch quite easily. I have dropped it once or twice and scratched it while holding keys. It still works fine and looks okay. I imagine as long as you don’t puncture it its okay as it’s a vacuum technology. I have seen some reviews saying they have dropped it a bunch of times and it’s fine. The 50-year guarantee and the average 4.5-star reviews from nearly 1,000 reviews tells you it’s good.
It’s something I use almost every day and for 25 with a 50-year guarantee, it represents incredible value for money. It’s much better than previous flasks I have had. For me, the positives far outweigh the few negatives.
Hot Stuff!
Thermos really do flasks so well, don’t they? When you think of flasks, their name comes top of the list. Anyhow, this has not disappointed. I have only used it for hot liquids, so cannot comment on keeping stuff cool. However, I have taken hot soup out for the day and it has still been piping hot after 8 hours, in fact too hot to drink straight away.
Hot Stuff!
Thermos really do flasks so well, don’t they? When you think of flasks, their name comes top of the list. Anyhow, this has not disappointed. I have only used it for hot liquids, so cannot comment on keeping stuff cool. However, I have taken hot soup out for the day and it has still been piping hot after 8 hours, in fact too hot to drink straight away.
This is the first flask I have ever bought, and honestly I believe it is the only one I will ever need. In the mornings (7am) I fill this flask to capacity with boiling water straight from the kettle (after filling with hot tap water inside overnight to pre-heat the flask). No leaks or bursts from steam pressure so far which is a good sign, which is a surprise as I keep it in my backpack which gets shaken and thrown around all day.
At 10am I have my usual tea break and pour hot water from my flask and I always get comments about how steaming hot the water is. Annoyingly my tea is always too hot to drink and it takes a good 15 minutes to cool enough to drink without scalding myself. I then reseal the flask until lunchtime. At lunch (1pm) I use the water to make a bowl of instant ramen and another cup of tea. The water is still so hot the noodles are ready within a minute or two and the tea is still too hot to drink. After I get home after 5 the flask still has more than enough water left to make another cup of tea which is STILL too hot to drink immediately. Excellent heat retention. I have yet to test this out on cold liquids.
Yes the handle rattles a bit and some would prefer there be no handle at all; but would you trust yourself to pour near-boiling water from a container this size without a handle? I am an average sized man and I can get my hand just over half way around this flask, so those with smaller hands would need something to hold on to securely for a safe pour. If the handle were detachable and a carry-strap were an option for the metal loops on the flask this could be a good feature for future designs.
The only thing I find that detracts from the flask is that if you choose to drink from the lid it gets very hot to the point it is uncomfortable to hold. It is a plastic lid with a thin metal exterior and the first time drinking hot water from it the tea tasted a bit ‘plastic-ey’ but that has since gone after multiple uses.
All in all an excellent flask which does the job as intended.
One last thing to note is that when you get this flask there is a small paper warranty card rattling around inside which needs to be removed before pouring any liquid in. 50 years warranty!
Well worth the money
This is one of those products where you really do get what you pay for. The first time we used it was to hold hot water to make coffee at the end of an outdoor concert before a long drive home. The water was not only very hot after 7 hours since filling but remained hot until mid morning the following day when we emptied out the remaining water. Built like a tank. Great quality. Well worth the money.
Hot tea all day
An excellent flask, I use mine five days a week. I get four good sized mugs of tea out of it, which stay piping hot until 7pm easily, from an 8am filling.
The only thing I don’t like about it is the handle, which makes a racket clanking against the body of the flask, and looks a bit suspect in it’s mechanical join to the flask. The only other criticism I’d have is that it’s a little tricky to clean around the filling area, other than that it’s perfect.
A decent flask.
What you would expect from Thermos. A well made flask. Wanted a large capacity. Chose red as it was the cheapest for some reason.
My husband takes it to work and it is used everyday. So the only small problem is the glue that holds the plastic cup and the stainless stel outer cup has become unstuck. I suppose we could use the warranty to get a new one.
A decent flask.
What you would expect from Thermos. A well made flask. Wanted a large capacity. Chose red as it was the cheapest for some reason.
My husband takes it to work and it is used everyday. So the only small problem is the glue that holds the plastic cup and the stainless stel outer cup has become unstuck. I suppose we could use the warranty to get a new one.
This is a great item and maybe deserves 5 stars if it matches what you are looking for. The handle that they fit to it is a good idea but its cheap cr9p injection moulded that probably cost a few pence. It can also rattle. This to me SLIGHTLY, although only slightly detracts from a great quality product.
bought this flask for my husband as previous flask failed to keep his tea hot for more than 2 hours. all i can says is this flask is AWESOME!! tea stayed steaming hot all though his 12 hour shift. it now accompanies us on picnics to the beach, hiking and camping trips. we are both very pleased with this purchase. looking for quality..THIS IS IT!
After using this for a couple of weeks now, I am quite pleased with its performance. Its been keeping my water cold for a good 8 hours, then cool for another 8. By the next day its still somewhat cool, but of course not as cold originally. Still overall pretty good.
As for the construction it seems solid, especially the handle – even though its ABS plastic (I believe). I feel like I could drop it without worrying about damage.
Overall very good, lets see how it lasts over time.
ot cheap but much better than other flasks
well made bit of kit this and actually keeps drinks hot i guess due to it having a vacuum layer inside. good size to. High uality as one would expect from thermos not that cheap but you get what you pay for here. would have been nice to have an extra cup in the lid maybe and also a little moulded handle on the side of the top cup
ot cheap but much better than other flasks
well made bit of kit this and actually keeps drinks hot i guess due to it having a vacuum layer inside. good size to. High uality as one would expect from thermos not that cheap but you get what you pay for here. would have been nice to have an extra cup in the lid maybe and also a little moulded handle on the side of the top cup
Really nice item. Lovely feel and well made.
I made tea, did a night shift, went to sleep, and when I woke up, the liquid inside was still just about luke warm, so even after about 20 hours, it was still enjoyable.
Im really happy with the flask.
Really nice item. Lovely feel and well made.
I made tea, did a night shift, went to sleep, and when I woke up, the liquid inside was still just about luke warm, so even after about 20 hours, it was still enjoyable.
Im really happy with the flask.
I bought this Thermos flask earlier this year to be used on day walks on nearby hills and accessible mountains. It is of a solid construction and does exactly what it purports. The tea is as hot drunk at the summit of a hill as it is drinking what remains in the flask when drinking at home at the end of a day’s walking. The flask is surprisingly light and the handle is a well designed excellent feature, especially in wet and windy conditions. I cannot praise this item highly enough and is most definitely the best flask I have ever owned. You certainly get what you pay for and in my opinion this flask is certainly good value for money.
eally good quality flask at good price, product is really well made, and does keep drinks satisfyingly warm for several hours providing you pre warm the flask with hot water 1st. The only reason I did not 5 star this product is that it only comes with one cup, A lot of flasks have a smaller plastic inner cup as well, this is probably not included in order to keep costs down and maximise profits. However it is a quality product and highly recommended.
My son bought me this marvellous King Flask by Thermos for Christmas because he knows I never drink enough during my 15 hour work days. He says the 1.2L capacity of this should keep me going until I get home in between shifts!
My first thoughts on handling this flask was how large it was. It’s a very imposing flask that looks like it means business! The matt black colour that I got looks smart and modern. It has a stainless steel interior and exterior and is relatively lightweight for it’s size even when filled to the brim with tea!
It has a handle on the side that you can use to hold the flask either upright or on it’s side a bit like a briefcase. At first I found it awkward until I realised you can fix it into the vertical position to hold and pour easily. To do this you just have to lift the handle up and out and it stays.
The stopper on the flask is designed so that you don’t have to fully remove it to pour your drink. I’ve found that to get a clean pour I have to turn it 2 half circles after the arrow is pointing out.
I’ve been using this for the past few days and can honestly say it keeps my tea piping hot. It fits in 4 full mugs of tea which is perfect for my needs! The outside of the flask stays cool and when screwed tight it’s leakproof. I love the insulated cup you get with it. It’s a good size and I can hold it to keep my hands warm even when the tea is too hot to drink!
The listing says this flask will keep drinks hot or cold for a full 24 hours. I’ve no doubt of this capability but I’ve not tested it out because my tea doesn’t last that long! I’d recommend pre-heating the flask before use by filling with hot water and leaving for a few minutes before emptying and refilling with your drink.
My only worry is that I might scratch the lovely finish on the outside of the flask but I guess that’s a very minor detail.
I’m very pleased with this flask. Having used it for a few days it’s not as cumbersome as I first thought and is quite easy to carry around.
I’d be happy to recommend it plus with the 50 year guarantee it’s worth trying out.
Without a doubt this is the best flask I have ever owned. As long as you give it a five minute pre-heat before adding your beverage it will keep it hot for several hours.
I use this for hot water only to make tea or coffee at work.
On one occasion I left this in my bag and forgot it was there. In the time it was in the bag I did not use it, so it had been sealed since it was filled. When I remembered it, I emptied it in to the sink in the kitchen and was amazed to find it was still hot, twenty four hours later. I’m not sure it was hot enough to brew a cuppa with, but I used the water to do some washing up and I could just about keep my hands in the water, it was that warm.
I haven’t used it outside on a really cold day yet, but have every confidence this would still keep the contents hot for hours as long as you remember to perform the pre-heat process. I’d definitely buy another. Nice one Thermos.
Absolutely fantastic flask, left hot water in it for two ...
Absolutely fantastic flask, left hot water in it for two days without opening it and you would have thought you had just filled it from the kettle it was that hot, used it thought out the day opening and closing it and the water did cool down but not too much still had a hot cuppa, the best flasks that I have ever owned, bought two of these and I can seeing them lasting for years, no more cheapo’s for me.
Absolutely fantastic flask, left hot water in it for two ...
Absolutely fantastic flask, left hot water in it for two days without opening it and you would have thought you had just filled it from the kettle it was that hot, used it thought out the day opening and closing it and the water did cool down but not too much still had a hot cuppa, the best flasks that I have ever owned, bought two of these and I can seeing them lasting for years, no more cheapo’s for me.
Quality, Class and keeps my tea piping ho
I bought this as a replacement for my old broken (plastic) flask. This flask is just pure class, I really like it. I use it daily with a full flask of tea so I can save ‘tea making time’ at work. My old plastic flask would hide under my desk, but this metal flask oozes quality and has pride of place on top of my desk. I take it in to meetings and always get asked about it. The metallic look of the cup is also a touch of quality. In short, I love it, I use it every day and for those who are interested it actually does keep my tea hot all day until I get home. Super buy. Very happy 🙂
I needed a portable Kettle?
And thankfully that is just what I got with this little Gem 🙂
I hate Coffee out of flasks and the tea is atrocious even if milk is added later!!
*** FIRST TEST ***
Monday 5.00 pm Cleaned it out and preheated the flask with hot tap water before filling with a kettle boiling water
Tuesday 7.00 am Made a Pot of Ground Coffee (Plunger type) Absolutely Perfect temperature and was delighted (2 Mugs)
Tuesday 9.00 am Made a Mug of Tea (Tea Leaves – not bags and No frills variety) Perfect Brew – No Floaters – Spot on Temperature
Tuesday 12.00 am AS above a lovely fresh hot cup of tea!!
Thats a perfect cup of freshly made proper tea 19 hrs after opening it 3 times!!!
*** FINAL TEST *** Take out to work in the Country
9.00 AM Preheat flask and fill with Boiling Water as Monday before setting off to work
12.30 PM — First brew A perfect Cup of Tea with my tea leaves
Then a further 3 more Mugs at 2.00 – 3.00 and 4.30 — Just like Brewing up normally but no need to wait for the Kettle to Boil!
I have also realized that although Coffee is recommended to use Very Hot but not Boiling Water as a rule of thumb
It seems to also apply to tea these Days because the tea made with this flask is a perfect temperature – No need to wait a few mins to cool like from a kettle – Its Tea leaves in – Water – Quick Stir – Add Milk (Powdered I use) – Brews perfectly and sure tastes better than bags
THIS IS WORTH EVERY PENNY
Keeps four cups of tea steaming all day!
Absolutely super flask! Holds enough for four mugs of tea. Not only does it keep drinks steaming, they stay that way inside the flask all day! Used it on countless day trips already so would highly recommend. Saves ‘s not using coffee shops! Only caution is it is quite heavy and that does make pouring tricky so be careful not to burn yourself. The outside stays cool to touch but the handle is not steady. However I gave it four stars for keeping drinks so warm for so long. Bought the cheery shiny red colour and love it!
Keeps four cups of tea steaming all day!
Absolutely super flask! Holds enough for four mugs of tea. Not only does it keep drinks steaming, they stay that way inside the flask all day! Used it on countless day trips already so would highly recommend. Saves ‘s not using coffee shops! Only caution is it is quite heavy and that does make pouring tricky so be careful not to burn yourself. The outside stays cool to touch but the handle is not steady. However I gave it four stars for keeping drinks so warm for so long. Bought the cheery shiny red colour and love it!
Amazing Thermos, buy it!
Amazing! I tried it yesterday with boiling water from the kettle, filled it and left for 8 hours. I opened it just enough to let out a cupful and it was still boiling hot (not the usual hot from a thermos but really boiling hot). I resealed it and left it overnight and 24 hours later it was still hot (not as hot as I had let some water out and had opened the seal) and would have been fine for tea or coffee. I am extremely impressed and it has performed far better than I could have even imagined. I would give it 10 out of 5 if I could!
Amazing Thermos, buy it!
Amazing! I tried it yesterday with boiling water from the kettle, filled it and left for 8 hours. I opened it just enough to let out a cupful and it was still boiling hot (not the usual hot from a thermos but really boiling hot). I resealed it and left it overnight and 24 hours later it was still hot (not as hot as I had let some water out and had opened the seal) and would have been fine for tea or coffee. I am extremely impressed and it has performed far better than I could have even imagined. I would give it 10 out of 5 if I could!
Amazing
I got this to replace a thermos that barely kept thinks warm for an hour, thinking it would be better but I was amazed.
As I write this review, I’m drinking a steaming hot cup of coffee out of it that I brewed over 24 hours ago!
Not really much more to say than that, if you want to keep a drink hot for a long time, you can’t do much better. If I had to criticise anything, it’s that the lid/cup transfers heat very easily, so if you put something near boiling in it it’s hard to drink from bare handed.
Amazing
I got this to replace a thermos that barely kept thinks warm for an hour, thinking it would be better but I was amazed.
As I write this review, I’m drinking a steaming hot cup of coffee out of it that I brewed over 24 hours ago!
Not really much more to say than that, if you want to keep a drink hot for a long time, you can’t do much better. If I had to criticise anything, it’s that the lid/cup transfers heat very easily, so if you put something near boiling in it it’s hard to drink from bare handed.
bomb proof,super hot,just brilliant.
Working nights it’s just what I needed.its bomb proof,keeps hot for at least 20 hours in the winter!!!!!!!
One good tip,put a little hot water in flask for 15 mins.pour out so its hot inside,then fill fully with your favourite hot drink,you will Find it stays hotter for much,much longer.i don’t normally give 5 stars,but I feel this product deserves it.yes the handle rattles,but that is the only negative I can think of.i have left hot water in flask on a Friday and it is still warm on a Sunday night !!!!!!! Brilliant.
great flask, keeps coffee warm for 24 hours!
My previous Thermos flask broke after many years of every day use. I was anxious to replace it with something of equal quality, as i like to have hot cups of coffee throughout the day (and we are not allowed to have a kettle in the university studios). This flask fits an entire caffatiere of coffee with a little room to spare, and keeps it piping hot all day (it is still warm the next morning, 24 hours later!) It feels very sturdy and has survived the knocks and bumps of everyday use for the last few months. All round good flask!
great flask, keeps coffee warm for 24 hours!
My previous Thermos flask broke after many years of every day use. I was anxious to replace it with something of equal quality, as i like to have hot cups of coffee throughout the day (and we are not allowed to have a kettle in the university studios). This flask fits an entire caffatiere of coffee with a little room to spare, and keeps it piping hot all day (it is still warm the next morning, 24 hours later!) It feels very sturdy and has survived the knocks and bumps of everyday use for the last few months. All round good flask!
I can't speak for longevity just yet but the flask is excellent. 24hrs and still around 55 / 60c
After My previous aladdin stainless steel flask failed and went cold by midday. (common fault) I went on the hunt for a decent flask that would last longer than 12months. I can’t speak for longevity just yet but the flask is excellent. 24hrs and still around 55 / 60c. I was abit dubious after buying several supermarket Thermos flasks (glass) as when I got to work, I placed my bag down and smash. I have a 30 year old thermos that is knocked around all the time and the glass hasnt broke yet but none the less I have managed to break two within a day of owning them. This how ever seems to be made well and quite light construction, Only thing I miss is not having a tea bag holder at the base like my aladdin flask but that is not the end of the world. I could also make a minor for the cup, its not all that well insulated so can be too hot to hold which was not a problem with previous brand. Overal though a good purchase , I just hope it stays hot with a 50 year warranty
I am a camping, picnic fanatic and over the years have had my fair share of flasks form the stainless steel type bought from the local supermarket to plastic insulated ones and they all have ranged from varying degrees of plain poor and useless, to satisfactory and quite good, but that was up until the purchase of my very glamorous redThermos King (don’t know why the heading says food flask it most definitely is not) the flasks that always kept my drinks hottest the longest was the glass ones, the last one of these bit the dust after the smallest of knocks while in my bag last year…gutted. I researched high and low in pursuit of a flask that would take the knocks and still keep my drinks hot for a long period of time. My search is officially over I have in my possession the flask that is truly the ‘King’ of all flasks. I was loathe to pay 25 for something as mundane and unexciting as a drinks flask, but based on the reviews and weighing up the amount of money I have paid on flasks that don’t really punch their weight I decided to bite the bullet and I am so chuffed to say that I have NO REGRETS. This flask is simply amazing… and I really mean amazing. I confess that I have not tried the 24 hour test that it claims on the flask but I have primed the flask at 11am and filled with hot water and did not open again until 8pm that evening. I was astonished to find that when I poured my first cup the steam that came out of this flask was like I had just boiled the kettle. The water was so hot it was in fact undrinkable for a least five minutes. literally UNDRINKABLE!. So with regards to its claim to keep hot for 24 hours – I have no doubt it will be able to measure up and pass with flying colours.
Do not hesitate, dither or procrastinate just buy this flask it will be the only flask you will ever need or want. I have 3 redundant flasks in my cupboard now as none them come even close to the performance of this beauty. I am ordering the smaller 0.47l versions for my brother for Fathers Day and for my sister who was the first person to have a cup of tea from my new flask and she is a stickler for hot beverages and is renowned for returning her Costa coffee four times on the trot for not being hot enough. She was bowled over by by flask and keen to have a smaller version which I found is available to my delight. It is a tribute to the old adage that “you get what you pay for” definitely not cheap, but in my opinion worth every single penny.
The King of Flasks!
(This was a birthday present for my Dad, so this review is based on his experience)
This is one heavy duty flask. Solid, well built, and looks like a premium item.
As for it’s claims of heat retention, well, it was filled with hot coffee (after priming with boiling water for 15 mins) at around 6am, and when he came home at 7pm, the remnants were still almost too hot to drink straight from the flask.
It’s not light, so if it’s for hiking or walking, consider the smaller one. If you’re off camping or fishing, or just want one for work, it’s great.
The King of Flasks!
(This was a birthday present for my Dad, so this review is based on his experience)
This is one heavy duty flask. Solid, well built, and looks like a premium item.
As for it’s claims of heat retention, well, it was filled with hot coffee (after priming with boiling water for 15 mins) at around 6am, and when he came home at 7pm, the remnants were still almost too hot to drink straight from the flask.
It’s not light, so if it’s for hiking or walking, consider the smaller one. If you’re off camping or fishing, or just want one for work, it’s great.
Does what it say.
So turns out this is the first flask I have ever owned that actually does what it claims to. I can fill it up at 9am with boiling water and take it out to refill it 24 hours later having used about half and it is still hot enough to burn my hands. Key seems to be keeping a good seal at the top with both the cap and the “cup” and I don’t actually use the cup but carry a separate Aladdin one because it does actually make a big difference to the heat retention(plus I don’t want to ruin it and the Aladdin is a better mug). Only thing I would change is probably the handle and it would be just to remove it as it not neccesary but I am sure for people with smaller hands it might be.
Overall pretty good, the price seems fair and if it lasts as long as the guarantee claims then it will be more than worth it.