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![How to Make Grain Spawn: Two Common Ways](http://royalflushmushrooms.com/cdn/shop/articles/Grain_SPawn_Jar.png?v=1628577975&width=533)
How to Make Grain Spawn: Two Common Ways
Grain spawn is used to propagate mushrooms by inoculating bulk substrates such as hardwood, straw and for certain varieties manure/compost. One healthy jar of grain spawn can be expanded exponentially...
How to Make Grain Spawn: Two Common Ways
Grain spawn is used to propagate mushrooms by inoculating bulk substrates such as hardwood, straw and for certain varieties manure/compost. One healthy jar of grain spawn can be expanded exponentially...