selection of sizes of our Sterilised Oat Berries mushroom substrate ready for spawning your favourite species. Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low View: 12 24 All Out of Stock Products, SubstrateMushroom Substrate £10.00 – £65.00 Rated 5.00 out of 5**** due to Corona Virus limited stock and prices increase this is due to our wholesaler increasing prices****** Sterilised Oat Berries mushroom substrate ready for spawning your favourite species.Select options Compare Quick View Add To Wishlist