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Coffe grounds recycling – making briquettes
- This topic has 3 replies, 3 voices, and was last updated 1 year ago by
.
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…
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.
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.
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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