5lb mushroom substrate sterilized supplemented hardwood add spores/spawn to grow

Description

Sawdust growing block supplemented with wheat bran.
The bag will come sterilized and sealed. Just cut the top, add spores/spawn and start growing.
Please remember to use sterile techniques while inoculating the block.
The block is 4.5 lbs, which leaves room to add 0.5 lbs of spawn to make it 5 lbs.
Any questions, please ask via messenger.