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Perfect for cold wate straw pasteurization while making mushroom substrate. Just soak your straw in your lime water for the recommended time. It will change the ph of your substrate to make it inhospitable for spore germination, but will not hamper your already germinated mushroom mycelia. Giving it the head start it needs for success without having the costs associated with resource consumptive sterilization procedures.

1 Lb. Hydrated Lime

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