Full Monotub Refill Kit including two 3 lb sterilized rye grain bags, two 5 lb CVG substrate bags, and a 2 lb sterilized casing layer. Designed for larger scale monotub grows, this kit provides properly hydrated and sterilized components for reliable colonization and consistent fruiting performance. All materials arrive ready to use, allowing you to focus on process and timing rather than preparation. Ideal for growers who want a standardized, repeatable bulk cultivation solution.
$67.99
Our Monotub Refill Kit includes everything you need to restock a clean, efficient environment for cultivating gourmet and edible mushrooms. Each component is properly measured, sterilized, and packaged to support consistent performance and repeatable results.
This kit includes two 3-pound sterilized rye grain bags for spawn production, along with two 5-pound CVG substrate bags made from coco coir, vermiculite, and gypsum. This balanced blend provides strong structure, reliable moisture retention, and an ideal environment for healthy mycelium colonization and fruiting.
A 2-pound sterilized casing layer is also included to help regulate surface conditions during fruiting. The casing layer supports proper humidity at the substrate surface, encouraging consistent mushroom development.
All components arrive ready to use. No additional sterilization or hydration is required. Simply inoculate the grain, allow full colonization, mix with the substrate, and apply the casing layer when appropriate. The standardized sizing makes this kit ideal for monotub and bulk grow setups.
Every component is produced in a clean environment using high-quality materials and controlled sterilization procedures. Whether you are refining your workflow or building a repeatable system, the Monotub Refill Kit provides the consistency needed for dependable results.
Note: This product does not include spores or liquid culture. It is intended only for legal, edible, and gourmet mushroom cultivation. The manufacturer is not responsible for misuse or for cultivation of prohibited species.
| Weight | 20 lbs |
|---|---|
| Dimensions | 15 × 12 × 10 in |
| Includes | 2 ct 5 lb Sterile Coco Coir, Vermiculite, Gypsum Substrate Bags, 2 ct 3 lb Sterilized Rye Grain Bag with Self Healing Injection Port, 1 ct 2 lb casing layer, Instructions, Sterile Alcohol Prep Pad |
| Weight | Entire package weighs approximately 17 pounds |
kelsey –
good but box was heavy and was a pain to carry up the stairs. possibly make it lighter for people
Layla Loves Shrooms –
Really great deal for this. I’ve bought it 3 times now and it makes prepping my mono tub super easy. Love the cute little bag of casing layer it comes with lol!
Bill –
10/10 on the products themselves and 10/10 on customer service! One of the bags arrived smashed (looks like corner of box was smashed in transit) and they sent me a replacement with an extra bag. Great experience overall.
Craig –
perfect for my 64 qt monotubs
Mosses –
easy to use and super convenient
Poppi –
Great deal
Evan N –
Good deal and fast shipping. Product works as it’s supposed to.
Chase Bilski –
I am really happy with my purchase. It came packaged very well, and the products look really clean. I am waiting on liquid culture from another supplier, so I am looking forward to getting this kit started. It came with instructions that are easy enough to understand, so I am pretty confident about my new experiment. I will update if anything changes, but this seems to be a solid company with great products. Definitely recommend to anyone new to this hobby as well.
Nanocon –
ordered a few times and never got contam. yields good too
Alex –
Great value got some great flushes.