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Our 12 lbs sterile mushroom-substrate is ideal for growing gourmet mushrooms.  The bags contain a modified T.R. Davis' Master Mix which will sustain a minimum of 2 full fruiting sessions for most species of gourmet mushrooms. 

When fruiting mushrooms, strive to maintain conditions of 65-75F and 85-95% relative humidity.

Sterility Guaranteed!

12 lb Blank Sterile Mushroom-Substrate

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