Sterile Rye Grain, Mushroom Grow Kit, With Stickers - All sizes Rye Grain Sterilised - For Mushroom Spawn £9.70 – £14.90 inc. VAT
Masters mix sterilie substrate rear view Masters Mix Mushroom Substrate Sterilised £15.50 inc. VAT

CVG Mushroom Substrate Sterilised

£10.75 – £18.50 inc. VAT

Our meticulously prepared CVG mushroom substrate features a premium blend of coir, vermiculite, and gypsum. Hydrated to field capacity with double-filtered water – devoid of chlorine, chloramine, and VOCs – it undergoes an extensive sterilisation process in an industrial autoclave for 3 hours at 126°C. This ensures an impeccable, sterile substrate that is perfect for mushroom cultivation of various strains.

Sterilising the substrate on an extended cycle eradicates all potential contaminants and helps to partially break down the structure of the coir, making it more accessible for mycelium colonisation. This process results in faster and cleaner colonisation than non-sterilised, pasteurised coir, making it an optimal choice for various mushroom species, including slow-growing ones. It supplies essential micronutrients, hydration, and bulk, promoting robust and prolific mushroom growth.

Proper hydration of substrate is crucial; insufficient water results in low yields, while excess water prolongs colonisation and invites bacterial contamination. You can avoid these pitfalls by using our six years of expertise to process your substrate. Each bag is expertly prepared, hydrated, and sterilised in a computer-controlled industrial autoclave.

  • Enhanced colonisation speed.
  • Complete contaminant elimination.
  • Balanced hydration for optimal yields.
  • Essential nutrients for healthy growth.
  • Convenient and reliable.

Additionally, the substrate can be supplemented with chopped straw or chicken manure to enrich its nutrient profile further. For optimal results, pair it with our top-selling sterilised organic rye grain bags – together they’re a match made in heaven.

Please review the drop-down sections below before placing your order, especially product lead-times if stated.

+ Lead Times

Whilst we often maintain a small inventory of most items for immediate dispatch, often, items that are freshly produced, high-volume, or made-to-order may require additional time before they can be shipped.

This additional time is referred to as the ‘lead time’ or production time. Please consider this when placing your order.

The estimated lead times for this product are listed below:

  • Orders less than 12 units: no lead time
  • 40 units: 1 week
  • 120 units: 10 days
  • 240 units: 2 weeks
  • 480 units: 3 weeks

Please contact us if you require larger orders sooner; we may be able to expedite your order for a small fee.

+ Technical Information
  • Available in 1.5kg and 3kg bags.
  • Genuine Unicorn Filtered Bags.
  • 100-day Sterility Guarantee
  • Made using double-filtered water, passed through an activated carbon filter.
  • Horticultural gypsum adds essential minerals and trace elements to support vigorous mycelial growth.
  • We use these ourselves in our mushroom production facility.
  • Sealed with a 6mm sealer before being sterilised in an extended autoclave sterilisation cycle.
  • Suitable for numerous mushroom species.
+ Shipping & Returns

FREE SHIPPING AVAILABLE ON ALL ORDERS OVER £50

Orders are typically dispatched on the same or next working day. However, please allow up to 3 working days for dispatch, plus any additional product lead times, especially during busy periods.

We ship our products in plain, unbranded, reinforced cardboard boxes with ample internal protection.

Our shipping couriers may leave parcels with a neighbor or in a safe place if no one is home to receive them. To prevent this, please select the designated signed-for service at checkout and ensure you are available to receive the parcel. Otherwise, the package will be held at your local sorting office or returned to us. Please note that we cannot be held responsible for lost, stolen, or missing parcels if the signed-for service is not chosen at checkout.

Larger orders that require multiple boxes will automatically be upgraded to DPD Local shipping, as they support multi-parcel shipments. Extremely large or heavy orders may need to be dispatched via a pallet.

If items are returned to us due to a failed delivery, a redispatch or restocking fee may apply. Please ensure that any held packages are collected from your local sorting office within 2 weeks to avoid them being returned.

We highly recommend upgrading to the ‘DPD Express Tracked’ service at checkout, as we find it to be the fastest, safest, and most reliable option. Please note that Royal Mail may occasionally experience delays in their sorting offices.

For more details, please refer to our shipping, returns and replacements policy.

+ Quantity Discounts 🔥🔥

Quantity Item Price % Discount
1 £10.75 – £18.50 -
2 - 4 £10.32 – £17.76 4%
5 - 9 £9.78 – £16.84 9%
10 - 24 £9.25 – £15.91 14%
25 - 49 £8.71 – £14.99 19%
50+ £8.60 – £14.80 20%
10 people have added this item to their basket in the past 24 hours.
Shipping & Returns info | Free Shipping Available Over £90 🚀
⇓ More product information below ⇓

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5-Star Customer Testimonials

Over 2,300 rave reviews and counting! Here's a random selection (different on every page)...

Fast delivery, good product, always had successful fruiting with maya. Going to try lions mane next. Meant to be good for preventing dementia and we have never been able to find them when foraging.

⭐⭐⭐⭐⭐Carly Gilmour on Google

Very pleased with my recent order. Very high quality product with fast delivery and neat packaging. I'm seeing Great result, especially following the well written instructions. Also received quick and clear responses with any queries I had. Definitely will come back to order more soon. 😊

⭐⭐⭐⭐⭐Antoni Kurpiel on Google

Very happy with the products from this store. Purchased on etsy and had a good experience and will definitely come back again

⭐⭐⭐⭐⭐Isaac Antoine on Google

Every single bag worked absolutely fine from the second it innoced, it had healthy white myc eating at it in no time! And getting the bag to fruit could not be any simpler! Amazing bags! Will always come back for sure! Thanks, Ben.

⭐⭐⭐⭐⭐e chalk on Google

STERILE COIR, VERMICULITE & GYPSUM MUSHROOM SUBSTRATE

Answers to frequently asked questions.

How will my product be packaged and shipped?

We invest significant time and resources to ensure our parcels are securely packaged and reach you safely and undamaged.

If your item requires a box, it will be shipped in a discreet, plain, sturdy, double-walled cardboard box of appropriate size, with unbranded packaging tape and ample internal protection to prevent damage during transit. While accidents are rare, they can occasionally happen.

Smaller, sturdy, and lightweight items will be sent in plain, unbranded padded envelopes.

All pallet orders are professionally strapped, wrapped, and equipped with corner protectors.

We also strive to minimize excessive packaging to help protect the environment.

Scroll down to see a section on our Shipping & Returns info, with links out to our policies

Can you do custom and bespoke orders?

Yes, we can accommodate your needs for any custom orders, substrate / grain mixes, special requests etc. Generally speaking, anything which is considered to be a custom order will have a bespoke price. Please contact us to discuss options.

Do you accept cash payments?

As an online-focused business, we prefer digital payments. However, for orders over £500, we do accept cash payments. Please contact us to process your order and arrange collection.

Can I collect my order from your facility?

We do not provide a standard collection service for orders under £500. If your order exceeds £500 and you wish to collect it, please contact us. Please note that, due to our insurance policies, we are unable to allow public access to our warehouse or offer tours of our facilities.

SHIPPING & RETURNS INFO

No fuss Shipping, Returns & Guarantee.

  • We aim to dispatch orders within 2 working days (Monday-Friday)
  • Free shipping option for orders over £50.00 - Shipping Policy
  • No questions asked returns & refunds policy - Returns & Refunds Policy

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