500g Sterilised Rye Grain Mushroom Grow Bag w/ Self Healing Injection Port | Ready To Use | Williams Co Supplies
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500g Sterilised Rye Grain Bag - Williams Co Supplies
500g Sterilised Rye Grain
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500g Sterilised Rye Grain

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 Sterile & ready to use
 Just add spores
 Guaranteed results

Backed by our 30 day money back guarantee
Shop now. Pay with Klarna

Sterilised and ready to use.

We’ve done all the hard work for you, inoculate with your favourite species of mushroom and watch the magic happen.

Just add spores.

Whether you are growing exotic, gourmet or medicinal mushrooms all you need to get growing is a spore or liquid culture syringe - once the grain is fully colonised it is ready to be mixed with your chosen bulk substrate.

Guaranteed results.

Mycelium or your money back - our bags are covered by our 30 Day Money Back Guarantee.


  • Weight: 500g
  • Grain: Rye
  • Self-healing injection port: Yes
  • Filter patch: Yes
  • Instructions included: Yes
  • Storage: up to 3 weeks in fridge

Bulk Ordering

Please contact us via support@williamscosupplies.com if you wish to order more than 100 items. Nationwide delivery available.

Delivery Information

Your order will be sent with Royal Mail or Parcelforce, you will receive an email once it has been dispatched. Orders are dispatched within 2 days unless stated otherwise. Plain packaging.

30 Day Money Back Guarantee

We offer a money back or replacement guarantee on all of our products. To claim your replacement or refund please send us photos of the issue to: support@williamscosupplies.com and we will do our best to help you.