Coconut Coir

Rated 4.92 out of 5 based on 12 customer ratings

£4.00 – £11.50 inc. VAT

Coconut coir is sourced from the husks of coconuts, shredded and compacted into ‘bricks’. Praised for its superior water retention and notable contamination resistance, it has become a favoured bulk substrate among home mushroom growers.

No sterilisation is necessary; instead, a straightforward pasteurisation process, commonly referred to as the ‘bucket-tek’ method can be employed. This involves adding boiling water, mixing once fully hydrated, allowing it to cool, and then inoculating with the chosen mushroom spawn. When combined with vermiculite and gypsum, it forms the well-known hydrated CVG substrate.

Appropriate for cultivators of all sizes.
Unlimited shelf life when stored dry.
Perfect for novices.
Contamination resistant.
Suitable as a casing layer.

These coir bricks feature a lower salt content compared to others on the market, facilitating faster colonisation and producing more substantial mushroom yields. Often combined with vermiculite, they create a light, airy substrate with excellent water retention capabilities, which further enhances mushroom production.

In addition to mushroom cultivation, they are frequently utilised in gardening and are entirely biodegradable.

Each brick typically weighs between 550g – 650g. Blocks weigh approx. 5kg.

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.

Size: Brick ~650g

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Coconut Coir 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.

Scientific Research Papers on Coconut Coir as a Substrate for Mushrooms

Coconut Coir and Beans Straw as Substrates for Mushroom Growth, Journal of Biology, Agriculture and Healthcare – 2017
The Feasibility of Using Coconut Residue as a Substrate for Oyster Mushroom Cultivation, Sopit Vetayasuporn – 2007

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

PRODUCT REVIEWS

12 reviews for Coconut Coir

Rated 5 out of 5

O. Curd – 19 August 2019

Light and fluffy growing medium. EAsy to hydrate. I ordered more than needed as it keeps indefintely and can be used in my greenhouse too. great for strawberries and ends up in my worm farm after mushroom harvest.
Rated 5 out of 5

Mel & Steve – 15 August 2019

Decent sized brick of coir, well packaged, speedy delivery, can be sawn up to size. – Thanks
Rated 5 out of 5

Alex Heath – 9 August 2019

Great stuff! Mushies love it. Add boiling water in a tub until you reach field capacity. Hydrates almost instantly. Cover and leave to pasteurise. Mix in spawn when cool approx. 4-6 hours otherwise you will kill the mycelium.
Rated 5 out of 5

Lez – 6 August 2019

Order arrived promptly. Perfect for mushrooms cultivation with the excess used in the garden for potting up plants. Great water retention. Expands with little effort in water, took around 20 minutes to fully hydrate and break down. Can be hydrated in one go, but I used a rake to break it up and speed up hydration. Can be broken up by hand.
Rated 4 out of 5

stu – 27 July 2019

shredded coconut husks. that is what I wanted, that is what I got. im leaving this review because they gave me a free cookie and a few samples of other products. otherwise i wouldnt have bothered. peace and luv x
Rated 5 out of 5

I grow mushrooms – 22 July 2019

Holds a LOT of water! I guess that's why it's used to grow mushrooms! Excited to get growing
Rated 5 out of 5

Colleen – 18 July 2019

Please with the quality of the product and speed of delivery. Well packaged along with a few other bits I ordered. First class service. Will use again – Colleen.
Rated 5 out of 5

Siltone – 14 July 2019

Hydrate in wheelbarrow and cover. I'm just getting into mushroom cultivation but used to use this stuff to help with my heavy clay soil in garden. Multiple uses. Happy customer
Rated 5 out of 5

Paula Lucas – 13 July 2019

Can be a bit dusty if breaking chunks off but to be expected. Fast delivery. No problems.
Rated 5 out of 5

Natalie – 13 July 2019

Highly compressed brick of coir. Seems to do the job. I'll update after my first harvest!
Rated 5 out of 5

Lorkin – 12 July 2019

Cheap and good quality
Rated 5 out of 5

R Harvey – 10 July 2019

Creates an ideal substrate for cubes, can be composted after. It's the outer shell of coconuts, very contamination resistant. I normally hydrate then mix with a bit of Gypsum for some added nutes. Been using this stuff for years as you can do away with expensive lab equipment. Buket tek is best, good yields. Thanks (use boiling water to hydrate then allow to cool, cold water doesn't work as well)