All our un-sterilized substrates are guaranteed for intact delivery and can be used to kick start almost any kind of mushroom culture or spores. Get growing with Mushbox quality substrates.

Un-Sterilized Substrates

Products (Total Items: 3)
Sort by
A must have substrate for extending the life and growth of any grain based mushroom. Pasteurize this substrate at 175 degrees F for one hour and then let dry for up to 5 hours before use.
$16.99 $15.99
This manure from Mushbox has been leeched, aged and dehydrated to ensure that all ammonia has been flushed out to perform to its ultimate capabilities within your mushroom substrate.
$16.99 $15.99
Essential ingredient in "casing techniques". This soil is buffered with hydrated lime to a PH of 7.0. This fools your mushrooms into thinking there is no more food and subsequently form mushrooms. 12 cup portion.
There are no products to list in this category.
Continue Shopping

The cookie settings on this website are set to 'allow all cookies' to give you the very best experience. Please click Accept Cookies to continue to use the site.