Williams Co Supplies
Sterile Masters Straw Mix Mushroom Substrate Fruiting Block | 2.5KG
Sterile Masters Straw Mix Mushroom Substrate Fruiting Block | 2.5KG
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Sterilised & Ready to use
50% Straw 50% Soy
2.5kg per bag
A remix of the tried and tested king of substrates, the masters mix. This highly supplemented substrate ensures a high-yielding first flush!
We have seen great harvests of all Oyster & Agaricus species using this substrate.
We make the masters mix fruiting blocks by first mixing 50% straw and 50% soy hulls (with a couple of extra secret ingredients) and hydrating them to the correct moisture content. We then load each heavy-duty grow bag with the mix, heat seal them and sterilise at 15psi for 120 minutes in our commercial autoclave.
We take great pride in our attention to detail and techniques ensuring you will receive nothing but the best possible product.
HOW TO USE
- Open the sealed bag and mix with colonised grains at your chosen ratio
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Delivery Information
Delivery Information
Your order will be sent with Royal Mail or Parcelforce, you will receive
an email once your order has been dispatched.
Orders are dispatched within 3
working days unless stated otherwise.
Plain packaging.
30 Day Money Back Guarantee
30 Day Money Back Guarantee
We offer a 30 Day Money Back / Replacement Guarantee on all of our products.
To claim your replacement or refund please send us photos of the issue to: support [at] williamscosupplies.com and we will do our best to help you.
Legal Disclaimer
Legal Disclaimer
Legal Disclaimer
All products sold by Williams Co Supplies are intended for lawful uses only. Our mushroom cultivation supplies are designed for growing gourmet and medicinal mushroom species.
We explicitly prohibit the use of our products for cultivating psilocybin-containing mushrooms or any other controlled substances. Cultivation of psilocybin mushrooms (magic mushrooms) is illegal in the United Kingdom and most other jurisdictions, with severe legal penalties for violation.
By purchasing our products, you acknowledge this disclaimer and confirm that you will use these items solely for legal mushroom cultivation purposes. Williams Co Supplies accepts no responsibility for misuse of our products contrary to applicable laws and regulations.
If you have questions regarding which mushroom species may be legally cultivated, please consult appropriate legal resources or authorities before proceeding.
