bio-bean Coffee Logs – Eco-Friendly Fire Logs for Wood

bio-bean Coffee Logs - Eco-Friendly Fire Logs for Wood Burners and Multi-Fuel Stoves (16 logs)

bio-bean Coffee Logs – Eco-Friendly Fire Logs for Wood Burners and Multi-Fuel Stoves (16 logs), Brown,24cm x 14cm x 22cm


Coffee Logs logoCoffee Logs, fire fuel, fire logs, firewood, sustainable fire logsCoffee Logs, fire logsCoffee Logs, fire fuel, fire logs, firewood, sustainable fire logsCoffee Logs, fire logs

Burn 20% hotter than kiln-dried wood logs

coffee logs, coffee grounds, recyclingB Corp, B Corporation, sustainable business, ethical business

Coffee Logs are made by bio-bean Ltd, a Certified B Corporation

Located in Cambridgeshire, UK, bio-bean is a Certified B Corporation. What does this mean? B Corps are for-profit companies that use the power of business to build a more inclusive and sustainable economy. They meet the highest verified standards of social and environmental performance, transparency, and accountability.

In 2022, bio-bean was named a Best For The World B Corp for the second year running, for its impact on the environment.

Quantity 16 logs in each bag
Size Coffee Logs vary slightly in size but average around 72mm in diameter by 105mm in length
Aroma There’s a slight aroma of coffee when you first open the bag but Coffee Logs don’t smell of coffee when they’re burning
Burn time Coffee Logs will burn for approximately an hour depending on your appliance and air flow. Please consult your appliance guidelines to optimise the burn time
Packaging Coffee Logs come in a fully recyclable bag
Storage Store in a cool and dry place.


Weight: 7.5 kg
Dimensions: 24 x 14 x 22 cm; 7.5 Kilograms
Brand: bio-bean
Model: CL16
Colour: Brown
Dimensions: 24 x 14 x 22 cm; 7.5 Kilograms

22 Responses

  1. GlindaClendinne says:

     United Kingdom

    Only had a chiminea for 2 months, tried store bought logs, had so much smoke I had to go inside just to not see yonder from smoke inhalation. Saw these logs on Amazon & oh my science were they a game changer. Put them on the burner, minimal to no smoke (depending on what I use to stoke the fire, though these logs created no smoke) extremely long burn and even then, when I think they’re burnt out from the outside, I open them up with my firepoker and the way they’re packed opens up creating intense (but not uncomfortable) lasting heat again. 100/10 would recommend, I’ve since bought twice as much as I did originally as they really do create a good effect with little to no smoke

    5.0 out of 5 stars Once they burn open, the fire really gets going

  2. Anonymous says:

     United Kingdom

    I found the burn time about 30 min.
    Burns hot and I like the eco side of it. These are much better value for money compared to them singular fire logs.
    Only thing I wish was that they where bigger logs

  3. Anonymous says:

     United Kingdom

    I am hopeless with the fire but my husband does it really well.
    He uses the kindling and one wooden log with the coffee logs. They seems to take a little long to catch alight. When they burn they kind of split so you wouldn’t be able to tell that they weren’t really logs. Until we got the hang of them they did smell a little but not overpowering or unpleasant. They also last a lot longer than would a give out more heat.

    5.0 out of 5 stars Good buy

  4. Anonymous says:

     United Kingdom

    Use these alongside logs & coal. Ignite quickly & last ages. Minimal ash if you burn majority of these. Not sure I’d use all these due to cost but definitely eeks out coal & wood.

  5. MathewU34ehbc says:

     United Kingdom

    Good value fir money, each log lasts for ateast 45 minutes and the heat output is good

  6. Sasha Vallely says:

     United Kingdom

    Golden Review Award: 2 From Our UsersI have a small log burner
    These are small so need two at a time
    They last just under a hour so one bag doesn’t last long
    The price is grea

  7. VincentYuan says:

     United Kingdom

    I like these logs. They are easy to use, and light easily. Can be used on their own or with other fuels such as ecoal.

  8. Anonymous says:

     United Kingdom

    These need firelighters but once you get em going your ho

  9. Alex Nishimoto says:

     United Kingdom

    Throw out a good amount of heat.
    Use with logs as they don’t last long.

  10. Susan Whelan says:

     United Kingdom

    Golden Review Award: 3 From Our UsersI love these coffee logs they are so economical and my stove loves them

  11. Suzannah says:

     United Kingdom

    16 logs in the bag for 8quid delivered is great. They burn well, great heat, better than kiln dried logs. Just don’t try to start the fire with them, best add them to an already well underway fire.

    ***Update March 2023***

    I’ve consistently bought these logs as additional fuel to put into our inset stove. Again, not something to start a fire with but add them when the fire is out the way out and you have the air supply turned down low to get the most out of these logs

  12. Anonymous says:

     United Kingdom

    Golden Review Award: 2 From Our UsersBrought these after reading the reviews, they came today, and I tried them tonight and they burn well and give a good amount of heat out.
    I made sure my fire was established and put one on with a small log next to it when the log had burnt through I put one on that as the other one was more than half way through burning. I can safely say I would buy again.

    Burn really well.

  13. Chad Nikazy says:

     United Kingdom

    Golden Review Award: 4 From Our UsersIt burns and heats easily. The smell after burning is not pleasant (I use a multifuel stove) but it’s ok as long as stove is closed.
    It’s nice to mix and match with your other fuel, but definitely nothing I’d use alone.
    Not sure if I’d buy it again, perhaps yes because of the fair price.

  14. Anonymous says:

     United Kingdom

    Golden Review Award: 4 From Our UsersWe used these on an open fire. I think they are probably better for log burners. They worked well enough but work out quite expensive.

  15. Anonymous says:

     United Kingdom

    Golden Review Award: 4 From Our UsersWe got some of these coffee logs from a high street discount shop, in the sale and loved them so much we purchased more via Amazon. We have a small-ish multi-fuel stove and find that if we get a good base fire going and then add 2 of these these hold/provide a good level of heat for quite a long time. The packaging says not to touch them once they are in and you really do need to leave them be as one little poke and they fall apart. Would really recommend these

  16. Anonymous says:

     United Kingdom

    Camr through the post really quick. Yet to use as weather is to warm for an open fire. The aroma when I opend the package was excellent and smelt great. Will submit a better review when I use them

  17. Anonymous says:

     United Kingdom

    Golden Review Award: 20 From Our UsersI am surprised by the number of poor reviews that these products have got as I have used these a number of times at different holiday cottages with a variety of woodburning stoves. They light easily and burn well.

    I think that people who try to use them on open fires or fire pits and then complain that they don’t light have not read the instructions, which makes it clear that these are for wood-burning or multi-fuel stoves, not garden fires. Similarly I don’t think that they are supposed to smell of coffee – the point is that they are reusing a consumer waste product.

    They generate a lots of heat and burn cleanly unless you really restrict the airflow, but this means that they get used up quite quickly. We did not manage to use them to get a slower burning (less environmentally friendly) flame.

    Don’t poke them with a stick or try to move them around as they just disintegrate in a flurry of pretty sparks.

    My only problem with them is that they burn quickly and therefore cost quite a lot to keep your stove going. I think they would prove very expensive to use as your main or only fuel.

  18. VanceTorrez says:

     United Kingdom

    I took a gamble on these for a fire pit camping fire.
    Now if you do not keep the fire going hot. Like anything, it will smoke alot, however if you keep the fire going, we only used a few bits of kindling and eco fire starters. And the fire was roaring, quite impressed to be honest as I tried to cancel the order of these when I read the reviews others have had issue with fire pits,
    My advise is if can can keep a fire going u will have no problems.
    If you struggle to make fires it will go out and smoke.
    Happy camping.
    Oh and the logs smell lovely but not a coffee smell when burning, Unfortunetly.

  19. Anonymous says:

     United Kingdom

    Like others have commented, the price isn’t super cheap, although that included Prime delivery (and they do weigh a bit). Similar price really to a 8-10kg bag of hardwood. Nice smell of coffee, but no smell when burning that I noticed (but didn’t risk my eyebrows getting in close)!
    I like the fact that they use post-consumer waste in a useful way, so happy to buy them and supplement using with hardwood and charcoal where appropriate.
    I’ve just used on an open fire pit, so probably burn faster than using in a closed stove.

  20. Retail Leisure International says:

     United Kingdom

    Golden Review Award: 2 From Our UsersI can break these into 4 smaller sections very easily, so they fit nicely into my shed’s log burner (which is very small).
    I can’t comment on a larger log burner, but they certainly seem to pump out a bit more heat than what I’d normally burn.
    The logs do give a bit of a coffee aroma, but nothing too profound when burning, but they smell great when you first open the bag (just like opening a jar of coffee).
    They due burn fairly slowly, so last a bit longer than other things I’ve used.
    The downside is that they can smoke quite a lot if they don’t have something to keep them roaring, so I use kindling with these and the combination is great.
    I’m not sure I could use these just on their own, but as I say, I’ve not tried them in anything larger than my shed’s burner.

    A bit disappointed that the price fluctuating so much during the colder months; as the Corona Virus Pandemic struck us all, some stores were still selling at the standard price, but eBay and Amazon seemed to increase prices by about 30%.
    I do respect that the coffee industry has gone quiet, so recycling the grinds hasn’t been an option, but the coffee shops still aren’t open and prices are coming down again, which suggests some profiteering. Stock is available now in most retailers at the original price.

  21. JannettFeng says:

     United Kingdom

    Golden Review Award: 9 From Our UsersI trialled these as I’m currently studying an environmental impact module and wanted to see if coffee grounds really can be turned into something useful.These will burn for around an hour provided there isn’t a lot of breeze. The smoke was noticeable mainly when the outer coating was burning off. This is necessary to avoid damage to the logs in transport/ storage which are around the size of a small Nescaf pot. You do need to place them where you want them on the fire because they will burn well but only if you don’t try to move them/prod them otherwise they will disintegrate – which is not unreasonable given they are not wood but a reconstituted product. There is a faint smell of Coffee periodically. You do get lots of heat off them which was nice as my fire pit allows me to put my feet underneath so they were toasty warm. I think they are best used together with other products – so I had some wood in the fire plus some coffee logs. As coffee grounds are terrible for plants and otherwise end up in landfill this can only be a product which will get better with time.

  22. Anonymous says:

     United Kingdom

    Golden Review Award: 4 From Our UsersI really like the idea of these logs: they seem to be properly carbon neutral and the whole thing has a beautiful hipster tang to it (“yeah. I only burn reclaimed logs made from coffee grounds. Yeah, probably only from Shoreditch cafes and the finest organic coffee grounds”). It’s also super convenient to have them delivered next day to my doorstep via Prime, even though they’re maybe a touch more expensive than my normal fuel.
    They definitely burn well – going up with a nice flame, thanks partly to their wax coating – and they certainly pack a pretty hefty thermal punch too.
    I do have a couple of reservations though: they seem to burn fairly quickly. Not loads quicker than an equivalent smokeless type log (compacted sawdust and the like), but certainly quicker than wood. They also seem to fall apart quite easily when burning, at which point they flare up and burn much quicker, releasing quite a lot of thick, acrid smoke (which I imagine my neighbours must love). I know they’re not officially a smokeless fuel suitable for burning in a smokeless zone, but you’d like to think that something so eco is in the spirit, if not the actual letter, of that law. Releasing plumes of dense smoke probably isn’t ideal from that point of view and I’d be interested to see if the manufacturers can get this stuff properly licensed for burning in those sorts of zones.
    Will I buy them again? Yes, I think I will and that must say something… but if you decide to buy them too, just don’t expect them to be absolutely perfect. It is such a brilliant idea though, and I do get a worthy glow just from the eco-hipster cred I must surely be earning by burning these.