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 |
Bought to make feeding my baby easier. I checked the temp after 12 hours and it was still 74.5 degrees. Brilliant for night feeds and days out.
It’s huge though! Maybe not ideal for short trips out, could do with a 500ml one.
I use these flasks a lot in winter when I need to keep water hot for a long time. Now that I have 3, I am well prepared for next winter. Part of my reduced reliance on fossil fuels for keeping water hot.
I would recommend the 1.2 ltr over the smaller ones for hot drinks simply due to the larger volumes ability to retain heat better.
Well made product and no glass to break.
This is the second Thermos flask I have purchased (the other one I got from a supermarket) and they are by far the best for keeping water/drinks warm. Whilst other flasks only keep warm for a few hours this is literally still piping hot at the end of the day and sometimes even 24 hours later too. This size (1.2l) fills roughly 3 cups of a medium size and has been brilliant for keeping me topped up with warm drinks whilst at craft markets!
You are probably looking for a new flask and wanting one that keeps your brew hot and doesn’t leak I was doing the same and has already tried a few flasks that I use on walks, but didn’t keep my brew warm over the full day at work. This flask was a little more pricey than the basic ones I’d searched through, but its a name I’m familiar with. So does it leak ? No it doesn’t (just make sure you fill it to slightly under the bottom edge of the stopper, or the stopper won’t be able to close fully as it hits the liquid. Does it keep warm all day ? Yes it does, it keeps it hot all day. In the video I’d filled it the previous morning (over 24hrs before) and had taken it to work and drunk at least half of the contents, brought it home and left it. Still plenty hot enough after 24hrs only half full after being opened several times the previous day ! Not only that, its a full metal flask so not going to shatter with a bit of knocking and banging in your bag/vehicle.
Always had Thermos, tried the other brands but there is a reason thermos has been going so long! It does flasks so well. I’ve got the cup which is the best spill proof one ever, the food flask which keeps you scran good and hot. So this flask is a no brainer. Keeps my brew hot, like just made, hot for a good 6/8 hrs. I’ve never had the need to use it longer than that, but I guess it would go for hours more. I don’t know about keeping it cool, but I guess so. Don’t bother going cheap. You will regret it in the long ru
I make tea at 6 p.m. for my husband to take to work, when he comes back the next day at 8 a.m. the rest of the tea is still hot, it starts to get warm around 1 or 2 p.m. Excellent brand
his is so cool whether the contents are hot or. old it keeps them perfectly.
Easy handle and washes out so well. No contamination from
previous content.
really happy with i
I really like this. I bought it because there is no fridge in the office and the guys only drink black coffee. So I fill it up with my tea. It keeps the tea hot which I like. One day I didn’t even use it and I checked the temperature the following day (I didn’t drink it mind) and it was still warm! The only thing I can fault it on is it is difficult to clean all the way to the bottom even when I got a specifically long cleaning brush.
Used this a few times now for days out. We have two, we use one for cold water and one for hot water. If you want hot water put hot water in it either over night or for an hour before you leave then empty it then re fill with hot water. Definitely does keep it pipping hot. If you want cold water I put water in it then put it in the fridge the night before. Even if you have them side by side with one hot and one cold it still works great.
The flask is made from high-quality stainless steel, which makes it strong and durable. The Midnight Blue color is also very stylish and modern. It has a large capacity of 1.2 liters, which is perfect for carrying hot or cold drinks on the go.
One of the standout features of the Thermos Stainless King Flask is its vacuum insulation technology. This technology ensures that hot drinks stay hot for up to 24 hours, and cold drinks stay cold for up to 24 hours. This makes it perfect for use on long trips or outdoor adventures.
The flask is also very easy to use. It has a wide mouth that makes it easy to pour and clean, and the screw-on lid is secure and leak-proof. It is also easy to carry around thanks to the built-in handle.
Overall, I highly recommend the Thermos Stainless King Flask to anyone who is looking for a high-quality, durable flask that can keep their drinks hot or cold for an extended period. It is a great investment for anyone who loves to travel or spend time outdoors.
I got this when I was ill with the flu and could barely get out of bed. I would make a big batch of soup/tea and keep it in the thermos by my bed. It stayed hot the whole day which was super convenient!
Filled the flash with hot water, left it for 10 mins then emptied it and filled with hot water then left it 12 hours opened the flask and tested the water it was about 90 degrees so left it another 12 hours tested it just under 90 degrees in the hole I tested it every 12 hours for the next 2 days and after 72 hours it was still hot took it fishing the other day and the drinks where hot from start to finish 100% satisfactio
This is really smart, with a great paint finish. It pours well out of the half-opened stopper. It loses a star because it is pricey yet doesn’t have a second cup. Consequently you have to take an extra cup with you, which rather defeats the object.
1st class dose what it says best one I have had
We use it to get free hot water from work. Imagine the money saving considering the prices of electricity & gas nowadays.
Keeps my coffee hot all day long.
I definitely recommend buying this, it’s great value for your money.
Bought this to take to Crufts.
Kept coffee boiling hot all day.
Beautiful classic appearance. Loved the deep red colour and chrome top/cup.
I didn’t realise this flask had a pouring function without actually having to remove the bung. Just twist the bung to pour! Even better.
Thoroughly recommend.
Keeps the coffee hot for hours….just what you need working nights
Great flask enough for 4 mugs!
Reviewed in the United Kingdom on 16 Febuary 2023
Colour Name: Red
Very robust flask which keeps drinks hot all day. Holds enough for 4 drinks which is great for a family day out. Nice colours too!
Amazing stays hot for such a long time never a cold cuppa
Keeps tea/coffee hot for hours and hours. Paint coating can get scratched easy.
I bought this product over a year ago and is still keeping my hot drinks amazingly hot even 16+ hours later, I highly recommend this product to all.
Very robust flask which keeps drinks hot all day. Holds enough for 4 drinks which is great for a day out. Nice colour too! (Midnight blue)
This is a 100% quality well made product. I’ve already tried and tested it and so far it’s the best flask I’ve used. Obviously basic but does what it says on the tin. Single stainless steel cup and well insulated deep screw top robust seal – I would recommend plus this colour was cheaper than the others but still same product. Brilliant.
Feels indestructible. Got it for my wife, so had to be durable, and it’s been great. Easy to clean and reliably sturdy. There are definitely better looking flasks out there, but this won’t let you down if you need something to put up with a bashing!
Went hiking with this full of coffee, 2 perfect mugs after 3 hours and 2 more full mugs after 6hours that were still hot enough, not perfect but totally acceptable.
The one small complaint is the one cup provided on top of flask is black plastic on the inside and I don’t drink hot drinks out of plastic, reverse the materials and it’s a 6 stars
The Thermos Stainless King Flask is a top-of-the-line product that offers excellent insulation and durability. Made of high-quality stainless steel, the flask is designed to keep hot beverages hot for up to 24 hours and cold beverages cold for up to 24 hours as well. The vacuum insulation technology used in this flask is incredibly effective, ensuring that your drink stays at the desired temperature for hours on end.
In terms of design, the flask is both functional and stylish. Its compact size makes it easy to carry around in a backpack or lunchbox, and the twist-and-pour stopper is both convenient and leak-proof. The flask also comes with a convenient carrying loop that can be attached to a backpack or bag for easy transport.
One of the best things about the Thermos Stainless King Flask is its durability. The stainless steel construction is tough and resistant to dents and scratches, making it ideal for outdoor activities or everyday use. The flask also comes with a five-year warranty, so you can have peace of mind knowing that you’re covered if anything goes wrong.
Overall, the Thermos Stainless King Flask is an excellent choice for anyone looking for a high-quality, durable, and insulated flask. Whether you’re going on a hike, camping trip, or just need a reliable container for your morning coffee, this flask is sure to meet your needs.
As it’s a large size, it would be better if it came with 2 cups as it could most likely be used by more than one person (although to be fair, I use it whilst working on my allotment for the day so one cup is ok for me – it replaced an older flask that did have 2).
The stopper with pouring ‘feature’ isn’t the best design but once you get the hang of it it’s ok.
It was very annoying though to buy this and then 2 weeks later get an offer to buy one for 5 less than I paid! Bit too late by then!!
I have only used this for hot drinks. Keeps the drinks hot for at least 10 hours.
Perfect….Its keeps the water hot till the following day
Best buy 7.00off because of the colour
Keeps hot all day
This is on of the best so far it keeps your drinks hot for a long time 24 hours without exaggerating.I highly recommended.
Great flask. Use it for work for coffee/tea. Fluid stays hot all day. Love the colour. Can’t fault it.
Using it for babies night feeds to keep water hot and so we arent boiling the kettle all day, every day. It works!
Nice thermos. Tried it on a hike. Keeps hot water hot for 24 hours. Liked it.
Get it as soon as you need it and don’t dither!
Retains hesr extremely well. We use it to keep babies formula water warm and this does the job very well.
It’s great for hot or cold drinks. My daughter uses it for ice cold water for work.
Flask arrived in perfect condition ready to replace an old version that had broken. The design looks robust and will hopefully last many years. It is a very dark, navy blue colour. The handle is black, and the flask has a silver cup.
This is a great product. Keeps liquids really hot for 18 hours plus. Once you get the hang of the screw top opening the pouring action is so useful as the liquid flow can be controlled. I found it useful whilst camping and on walking holiday. Not excessively heavy empty. Would buy another one.
My son has had years of use for this flask and it’s still going strong he takes it if he’s hiking
i haven’t used item yet, but looks good, great delivery, well packed.
Excellent keeps drinks hot as description. Meets and exceeds expectations
Great buy does what it meant to do keeps things boiling hot tried it out immediately perfect looks really good on the side next to me saved me getting up all day this will come in so handy when needed especially on trips outdoors love it so much glad I bought it.
I got this for my partner for his birthday and he is in love with it. It stays hot for 24hrs and keeps the drink fresh.
Well built flask for hot water etc. handle is a bit of a rattle but does everything you want from a flask!
This is perfect size have used it several times and liquid keeps really hot all day long
It does what it is supposed to do and it is great compared to others. It keeps the water hot for longer than 8 hours. I only keep hot water in mine and keep it for long trips to make tea, coffee or instant foods. I recommend it especially for long or short trips.
Great reviews and can wait to out a few hikes to sample it properly.
Keeps my drinks hot and for a long time. Absolutely loving it!
Forget 24 hours, my water was still cold 30 hours later. Couldn’t be any better.
Really good, proper Thermos. With full metal jacket. Should last forever and keeps boiled water at a good temperature for at least 12 hrs. There is a scientific review on Amazon which is accurate. Really happy.
Keeps nice and hot.
You get what you pay for.
bought it for my dad and he loves it. i think the handle is annoying the way it moves but it doesn’t seem to bother him.
This is by far the best vacuum flask I have ever had. Very lightweight and keeps drinks hot for at least 8 hours, depending on how full the flask is ( as it becomes empty then temp falls somewhat). Useful to be able to pour a hot drink without completely removing the stopper, i.e. retains the heat more effectively.
Used for coffe, keep hot drink for a least 10 hours or more. Nice made, easy to use.
Metal thermos flasks are amazing, they keep drinks hot for hours (we have had piping hot coffee out of ours more than 8 hours after filling it; if there’s any left the next day it’s usually still warm!) and they don’t fall over and smash like the glass ones do. Paid for itself after about two long trips with the savings on motorway services coffee.
Nice finish, very sturdy build quality and a useful handle. And most importantly excellent heat retention.
All in all an excellent flask. The only area its slightly let down by is it’s cup as it’s stainless steel on the outside but completely plastic on the inside which is a shame as it is a cost-saving measure which reduces quality significantly. I use a stainless steel mug that fit’s happily on the top but would have been far nicer if the supplied cup was just stainless steel ideally twinwall. All in all I’m very happy with this flask.
It’s good but if you need extra hot cup of tea l said no
Brilliant flask keeps the water red hot all day I must buy for any builder first cup is as hot as the las
Keeps my water hot all day long!!! Worth every penny!!!!
The best thermos flask I have owned bar none.
This keeps boiling water very hot for 24hrs. With the hike in power prices, I boil my kettle in the morning y and fill my flask. The next morning, I can still make a cup of tea.
For work, I fill with tea and can still drink it when I get home at night…..(I work 10 hour days).
Highly highly recommend. Sturdy and attractive design.
Thermos all the way for me.
After lots of research i’d say best for its price.
Keeps me hot drinks hot and cold drinks cold perfec
Does exactly what it says drink still hot enough after 24 hours
Pleasantly surprised how long it keeps tea and coffee hot.
I bought it to save money on electric so fill it in morning and use it by teatime though cooling down but this is with repeated use
Keeps my man’s coffee hot all day long excellent value for money
I bought this flask for my boyfriend as he works early mornings, to make sure he had a drink that was always hot during the winter months. This flask certainly does just that! When I empty the flask at around 4 pm in the afternoon, his coffee is still steaming despite being made at 5 am! Definitely worth the money 🙂
Replaced the shattered inner glass thermo, safe and durable stainless steel that keep hot water hot overnight. Very please.
Fantastic product, slightly more expensive than others but you get what you pay for. My husbands coffee was still boiling hot after 12 hours
Great flask. Lovely colour and most importantly keeps drinks hot for ages. Made a flask of tea and upon emptying the flask the next day, more than 24-hours since making the tea, it was still steaming hot!
I purchased the 1950’s green flask which I really like. I, also, don’t like the rattling handle so I’ve put an elastic band around the flask to hold it in place. But the water absolutely does stay hot. I boil a kettle first thing, have my cup of tea and pour the rest in the flask. My afternoon coffee water is still boiling.
Absolutely great product definitely does what it says on the tin. I’ve used many flask and towards the end of the day it’s normally getting cold/warm. Yet unlike other flasks I’ve owned I can still enjoy a hot coffee when I’m getting the train home after a 10hour day. Definitely would recommend to anyone tired of having cold coffee after a few hours. 5 stars dosent give it justice
My wife loves this flask and said it stays hot all day long.
It keeps the temperature for a long time, easy to clean, I recommend it very well
I bought it for keeping hot water ready for making infant milk. It is the perfect size and keeps the water nice for a very long time. It fulfilled its purpose so I’m happy.
With electric prices going through roof I bought this as gift.I’ve similar one and I’m on own all day .full kettle fills in morning and I leave beside it.never realised how many times I put kettle on during day for wee cups of tea until I go to get tea now. So it’s definitely saving electric.hope this one does the same for my friend.
Love the colour.
Love the size.
Love the heat,
That’s no surprise.
My hot stays hot.
My cold stays cold.
It’s easy to wash
So it doesn’t grow mould.
It’s got a groovy handle
So I can carry it.
I love it so much
I’m gonna marry it!
Nothing else to say it’s a thermos, works great. A lot better than cheaper alternatives. Recommended.
Does what is says on the tin and very easy to use whilst holding heat for a long time.
Flask keeps hot drinks very hot for hours. I haven’t tried it with cold drinks yet.
Opened and emptied flask 24 hours after making and the drink was still very warm.
Best flask I’ve had for a long time!
I now boil my kettle just twice a day, saving energy. A full flask with give me 4 mugs of tea/coffee It stays hot for 24 hours as it says it does. Love i