When my blocks for growing mushrooms has given me all it can I set the bags out for anyone interested in adding to compost.

Blocks are made of oak sawdust, soy hulls pellets, wheat bran, and mushroom mycelium. Sometimes you'll see a block avaliable with green bits. That green is likely trichoderma which is a useful soil additive - gross as it looks.

Mushroom blocks help to add biodiversity to your compost and the leftover mycelium speeds up the decomposition process.