Master Slants – Cultures

Our commercial ready-to-inoculate, pure Generation 1 mycelium cultures are designed for rapid spawn expansion into bulk substrates or for creating grain masters. Perfect for both long-term storage and immediate use in scaling your cultivation. Supplied in durable glass slant tubes with a premium agar mix ensures long-term viability, stable mycelial growth, and easy visual identification of contaminants.

Available Strains:
Black Poplar (Pioppino) | Blue Oyster | Buna-Shimeji | Enoki | Golden Oyster | Maitake (Hen of the Woods) | King Trumpet | Lion’s Mane | Pink Oyster | Reishi | Shiitake

These are professionally isolated, high-performance strains selected for consistently high yields and superior resistance to contamination. We use the very same cultures in our own operations and are proud to make them available to support your cultivation success. Unlike many suppliers, we believe in sharing the best—beware of low-quality or improperly isolated strains from others.

Key Features:

  • Produced in our dedicated laboratory for 100% clean and viable cultures, guaranteed or your money back.
  • Supplied in glass culture slants, which are ideal for long-term preservation of your strains.
  • Double-sealed with Parafilm laboratory film for contamination resistance and breathability.
  • A reliable option for strain backups and ongoing cultivation projects.

Storage Recommendations:

  • Store slants in a refrigerator at 2–4°C for optimal preservation.
  • Use a Styrofoam container or similar insulator to prevent temperature fluctuations, which can lead to condensation and potential contamination.

Please Note:
All cultures are made to order, ensuring peak freshness and quality. Kindly allow 2 weeks for order fulfilment.

Invest in your cultivation journey with our expertly isolated master slant cultures and experience the difference professional-grade strains can make!

 

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

+ Technical Information
+ 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.

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)...

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

k, speedy delivery, I wouldn't go anywhere else for my mycology needs. Thank you so much.

⭐⭐⭐⭐⭐Steve on Trustpilot

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

Master Slants – Cultures 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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