Coco Coir Brick Gro-Plus 5kg Premium 10 Pound Coir Block
Coco Coir Brick Gro-Plus 5kg Premium 10 Pound Coir Block is backordered and will ship as soon as it is back in stock.
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Coco Coir Brick Gro-Plus 5kg Premium 10 Pound Coir Block
Description
Description
Gro-Plus Premium Coco Coir Brick – OMRI Organic Listed | Low EC Mushroom Substrate
The Gro-Plus Coco Coir Brick is a premium, triple-washed, low EC growing medium trusted by mushroom cultivators, organic gardeners, and hydroponic growers. Designed for bulk substrate preparation and high-yield fruiting systems, this OMRI-listed organic coir expands into a fluffy, contaminant-resistant base perfect for monotubs, grow bags, and raised beds.
Available in both 5kg (10lb) and 650g bricks, this pH-neutral coco coir provides superior moisture retention, aeration, and structure — making it ideal for CVG substrate blends, casing layers, and soil conditioning.
Why Growers Choose This Coco Coir
- Triple-Washed & Low EC – Removes excess salts for cleaner mushroom substrate
- OMRI Organic Listed – Safe for organic gardening and food production
- pH Neutral – Ideal for mycology and sensitive root systems
- High Water Retention – Maintains proper field capacity for strong colonization
- Naturally Mold & Bacteria Resistant – Cleaner substrate foundation
- Expands Significantly When Hydrated – Saves storage space and shipping costs
Brick Size Comparison
| Size | Compressed Weight | Expands To | Best For |
|---|---|---|---|
| Large Brick | 5kg (10 lbs) | ~80 Quarts (20+ Gallons) | Bulk monotubs, large CVG batches, commercial grows |
| Small Brick | 650g | ~10 Quarts | Small monotubs, test batches, home grows |
Perfect for Mushroom Substrate Preparation
Gro-Plus Coco Coir is commonly used as the base for CVG substrate (Coco Coir, Vermiculite, Gypsum) and other bulk mushroom substrate blends. Its low electrical conductivity (EC) ensures minimal salt content, reducing contamination risk and promoting aggressive mycelial colonization.
How It Works
- Place brick in large tub or pot.
- Add hot water to hydrate and expand.
- Allow to cool to proper field capacity.
- Mix with vermiculite, gypsum, or use as-is for gardening.
- Pasteurize and load into monotubs, grow bags, or garden beds.
Technical Specifications
| Material | 100% Coconut Coir |
| Certification | OMRI Listed Organic |
| pH Range | Neutral (Approx. 5.8–6.5) |
| Electrical Conductivity | Low EC (Triple-Washed) |
| Use Cases | Mushroom substrate, CVG blends, gardening, hydroponics |
| Skill Level | Beginner to Commercial |
Gro-Plus Results from Growers Using Our Coco Coir
From small home monotubs to large-scale commercial fruiting rooms, growers rely on this premium coco coir brick for consistent hydration, even colonization, and improved yields. When paired with high-quality grain spawn and proper sterilization techniques, it forms the foundation of a high-performance mushroom growing system.
Also available in wholesale pallet quantities for hydroponic stores, commercial farms, and bulk resellers.
Let customers speak for us
I order everything here first so needless to say… but well deserved…
This company hands down is for mycology and the people!! I bet you bottom dollar I’ll order something or rather from Midwest within the week or 2🤑
WORKS WELL IM IMPRESSED THANK YOU MIDWEST YOIR THE BEST !!!!!☝️
Works great 👍
If contamination is a concern for you, this FFU is definitely worth the investment. With the Bonsai Laser Particulate/Contaminate Meter PM 2.5, I consistently got all 0's up to 5 feet away (only tested up to 5 feet), as long as I stayed within the 23" × 23" area in front of the filter. Outside that zone, particle counts are still very low.
Every thing went well !!! Beautiful mushrooms!!!!
Wet and taking off like a jet 🥷
Thank you MWG 🙌
This kit contains everything you need to start growing your own mushrooms (except the genetics of course).
I inoculated the grain with Gorilla Wizard LC on 3/1 then did a break n’ shake on 3/12.
11 days later on 3/23 I transferred the grain spawn to bulk substrate in the monotub (I added a casing layer on top).
It’s been about a week now and it’s showing nice recolonization :)
I’m very pleased with this kit. The 44q container is fantastic! It has a tall lid so your mushrooms are able to grow and stretch :) I’ve tried other monotubs (like the inflatable one - the concept was great the practicality of it wasn’t quite up to par),
So far everything about this company has been great, I haven’t had any contamination or anything. I will update in a couple weeks the outcome of my Gorilla Wizard grow :)
SIMPLY THE BEST,BETTERMENT THAN ALL THE REST THANK YOU MIDWEST YOU ROCK !!!!!!!!!!😎😎😎😎😎😎😎
I love this company and I’ve had 100% success rate with their products!!!!
These silicone lid covers are a game changer. When I prep grains, water always finds a way under the foil and onto my lids no matter how tight I get the foil. These lids go on quickly and keep my jar lids nice and dry! This is big for anyone using paper filter patches for gas exchange. Thank you Midwest for having exactly what I needed!
I know these are probably designed for all-in-one setups, but recently I've come to find spawning 2 bulk in these types of bags incredibly effective. Instead of mixing a grain bag (2-2.26 lbs) into 5 lbs of substrate in a pan, I like to make two nice big round babies with the same amount. For measure, these bags could easily hold 10 lbs of materials, and the real reason I got them was due to the concern that the tops of the smaller ones would not so easily receive pouring from other large bags. Plus, the sale price and potential for extra filtered air flow sold me solid. That said, the downfall of such a large bag was sealing them was much more difficult. I should have ordered MGK's expert bag-sealing device instead of the inoperable hank of jank I wound up having to return. Nevertheless, tape sufficed.
I almost bought the regular Complete 44Q Kit and saw this and decided to splurge. All I can say is it was well worth it. Everything colonized and re-colonized much faster. I used to use a space heater in my grow room and that added a chunk of cash to my electric bill. This setup is awesome. I am only 9 days after breaking up my spawn bag and mixing with substrate and I am seeing pins everywhere! My only suggestion is to add 3 filter disks on the opposite side of the air pump. This helped me dial it in in my room which is already kinda humid here in Georgia.
No bacteria no broken jars solid 10/10 perfect condition. Will be Buying more!❤️
I love y'all's mono tubs they work great I would like to have a top for one of them it's about 6 in taller just so I can get this one strand of mushroom that grows a foot tall but I'm going to work out something with that different with the whole group that I think.
I've already recommended your products to friends and family.
Everything I ordered from y'all has come quickly and package good.
