Bulk Sterilised Rye Mushroom Grain Spawn Bag Bulk Packs:50 Cut a small “X” or

Cut a small “X” or slit on the front of the bag where you want Elm Oyster mushrooms to form

Building a production‑ready Black Pearl King Oyster spawn line with repeatable results

Building ready-to-fruit Blue Oyster grow kits with consistent

We recommend hardwood or masters mix substrates for Pink Oyster

Bulk Sterilised Rye Mushroom Grain Spawn Bag Bulk Packs:50 Cut a small “X” orBulk Sterilised Rye Mushroom Grain Spawn Bag 251000 Unit Packs Scale up your spawn production with lab prepped rye grain thats ready to inoculate. Built for growers who care about consistent colonisation, clean results, and a supply they can actually rely on. Each bulk rye grain spawn bag is prepared in cleanroom conditions and sterilised in a computer controlled autoclave, taking the guesswork out of prep so you can focus on growing, not fixing