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Coffe grounds recycling – making briquettes

DEJAVU dejavu

Coffe grounds recycling – making briquettes

11/06/2020 at 08:45

Hi all, is here anyone with experience recycling coffee grounds? So far I found these options –
1) pressing coffee into logs/briquettes/pellets for fire
2) making fertilizer
3) creating composites – making objects like bowls, coffee cups, furniture,..

I am thinking about trying to make press like this (https://www.youtube.com/watch?v=7OXnyVB-2Q4) and just try it and see if the pressure is enough to make logs like those made from paper in video…

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12/06/2020 at 03:29

You might check with the local gardening people. Depending on what the local soil is like, it can be used as a soil additive. We just put ours into our compost bin. I’m sure the worms work faster when they hit the espresso grind.

05/07/2020 at 11:09

There is a lot of information around on using coffee grounds to grow mushrooms.
Even IKEA has a short article about it.
I agree with @s2019 that you need to know soil type before composting grounds. Where I live, we have quite acidic soil – and as the coffee grounds are also acidic, we don’t compost them.
I don’t know what the acidity of the grounds would be like after the mycelium (mushroom) had been working on them for a while, though.

05/07/2020 at 11:24

According to this article, growing mushrooms in coffee grounds neutralizes the acidity.

Also – the resulting densely packed mycellium has some useful structural properties.  See Raw Furniture Is Grown With Mushroom Mycelium.

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