Genuine Unicorn Bags, small medium and large, laid flat Mushroom Growing Bags (Unicorn)
Mushroom Bags (SacO2, MicroBags)

Mushroom Grow Containers (SacO2, Microbox)

(2 customer reviews)

SacO2’s premium range of patented polypropylene containers are perfect for home mushroom cultivation. They are 100% autoclavable and feature their revolutionary depth-filtration system which provides perfect even gas exchange without drying out the substrate.

Thanks to their compact size, sturdy design and perfect 3-inch depth, we’ve chosen to use the micro box exclusively for our range of grow-at-home mushroom kits.

Deeper than most other containers you can find, with a filtered lid and larger fruiting surface means greater substrate and water capacity, larger flushes and bigger yields.

Ideal for conducting mini-grow trials before settling on a chosen strain. A great gift-size box, stackable, reusable, and fit easily into most autoclaves.

* Full Size Specifications Below

Please review the FAQs and drop-down sections below before placing your order.

+ Shipping & Returns

FREE SHIPPING AVAILABLE ON ALL ORDERS OVER £90

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.

Purchase today and earn a further 2.5% MAYA GOLD REWARD to redeem on your next order.

This product is currently out of stock and unavailable.

3 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

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

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

Delivery, quicker than expected. High quality product as well. Very pleased with the purchase. Many thanks. 😀

⭐⭐⭐⭐⭐Dan Eggleton on Google

Mushroom Grow Containers (SacO2, Microbox) 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.

Square, 2 litre Container Specs

Cover: 195 × 195 mm
Base: 185 × 185 mm
Height: 78 mm (3 inches)
Volume: 2000 ml (2 litres)
4 x filters

Round, 0.5 litre Container Specs

Cover: 118 mm diameter
Base: 90 mm diameter
Height: 80 mm
Volume: 565 ml (0.57 litres)
1 x filter

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 £90.00 - Shipping Policy
  • No questions asked returns & refunds policy - Returns & Refunds Policy

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PRODUCT REVIEWS

2 reviews for Mushroom Grow Containers (SacO2, Microbox)

  1. Pete –

    Perfect for making massive BRF cakes! It was a bit of an experiment but worked a treat! Similar to the kits you find on the site here: https://woocommerce-143286-2524273.cloudwaysapps.com/buy/mycotub-mushroom-grow-kit-2l/

    I made my own injection port lids with rubber injection ports, and RTV silicone for extra peace of mind. I found a leather hole punch best for making the holes. Put it on a chopping board, then your lid, then the punch and you get nice clean holes. Tried using a drill but it ends up catching the plastic and making untidy, none-circular holes. A little heads up for anyone trying to do the same.

    Tubs can be re-used although I found them to be slightly less square after the first autoclave, so the lid doesn't fit quite as well as it did the first time round, though still does fit. I put a bead of silicone around the rim for the 2nd time round.

  2. Willy –

    Received today, quick delivery, well packaged. I purchased these to run small and discreet grow trials, and for this purpose, they are perfect. They fit well into my autoclave. Top notch. 5*

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