All our pre-sterilized substrates are guaranteed sterile and ready for use with almost any kind of mushroom culture or spores. Get growing with Mushbox quality substrates.

Sterilzed Substrates

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Products (Total Items: 3)
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Great for starting spawn for casing, bulk substrates or just as a master grain spawn. Made with precision and care.
$19.00
These are the best substrate jars on the market or your money back! We stand behind our secret recipe containing all organic ingredients. You can get up to 1 ounce of fresh mushrooms per jar!
$62.99
Great for growing small scale inside of the bag or use to spawn to other colinized grains for larger flushes. Approximately 3 pounds.
$28.00
 
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