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Gypsum (Calcium Sulphate) · £/kg

£4.00 inc. VAT

Gypsum plays a crucial role in mushroom cultivation, enriching substrates and grain with essential minerals and trace elements. This valuable additive promotes robust mushroom growth and enhances overall yields.

In its powdered form, gypsum can be mixed with water during grain preparation, whether soaking or boiling, or directly added to the substrate for a nutritional boost. With a natural pH of 7, it also helps stabilise substrate pH levels, preventing harmful fluctuations that could impede mushroom development.

Made from pure calcium sulphate, our horticultural grade gypsum is versatile and suitable for any mushroom substrate. For optimal results, add up to 5% of gypsum by the dry weight of substrate or grain.

  • Supplies vital minerals and trace elements like calcium and sulphur, promoting healthy mycelium growth.
  • Supports proper fruit-body development.
  • Increases yields during the fruiting stage.
  • Maintains stable substrate pH levels.
  • Helps separate grains after boiling, reducing clumping and bacterial contamination.
  • Ensures even moisture distribution when added to bulk substrates.

Incorporating gypsum into mushroom cultivation fosters healthier mycelium, improved fruit-body formation, and higher yields, all while ensuring a stable and favourable growing environment.

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

+ 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 - 4 £4.00 -
5 - 9 £3.40 15%
10 - 24 £3.04 24%
25+ £2.84 29%

In Stock

21 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)...

Awesome product. Best I’ve used so far. Very fast delivery and helpful customer service. Also the kids loved the little sweets added to the box. Nice touch.

⭐⭐⭐⭐⭐Kevin Talbot on Google

Best spawn bags on UK market! I've ordered couple of times from Maya and was never disappointed! Quality bags, quality packaging & best customer service! 5/5 👍🏼👍🏼

⭐⭐⭐⭐⭐Kamilo Kamil on Google

Thanks for answering my query ahead or ordering and providing high quality, fully sterile grain bags and substrate. Good value, allowing me to grow which saved me money on what would have been more expensive to buy.

⭐⭐⭐⭐⭐Mark Brownsmith 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

Gypsum (Calcium Sulphate) FAQ

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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Brand: Maya Mushrooms SKU: gypsum-1kg Category:

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