Growing mushrooms on coffee grounds - the new pandemic hobby?

Old coffee grounds are ideal for growing edible mushrooms from spores that are easy to find online. — dpa

Coffee grounds have much too good left in them just to be dumped in the bin. It appears that countless people have come to the same conclusion and are putting their coffee leftovers to better use with the help of mushroom spores ordered online.

Gardening experts have long spoken of the benefits of coffee grounds as fertiliser or pesticide, but only now during the pandemic is its use in growing mushrooms becoming common knowledge.