Casing Layer is a prepared surface covering that helps retain moisture over colonized substrate. Each bag arrives hydrated and sterilized, ready to apply when your mushroom growing method calls for casing. It supports a moist surface environment while saving you the extra prep work and cleanup.
Price range: $16.99 through $54.99
Made from coco coir and vermiculite, this casing layer helps retain moisture at the surface of colonized substrate. Each 2 lb bag arrives hydrated and sterilized, ready to use without extra mixing or preparation.
A casing layer provides a moisture-holding cover over the growing substrate. It helps protect the surface from drying out during fruiting.
Casing serves a different purpose from the underlying substrate and is not required for every mushroom species. Use it when your mushroom growing method calls for a separate casing layer.
Spread a loose, even layer over fully colonized substrate without packing it down. For methods that call for a thin casing, approximately 1/4 to 1/2 inch is typical. Follow the depth and timing recommended for your species and growing method.
Coverage depends on the thickness applied and the surface area of your container.
See our Casing Layer Application Instructions for guidance on when and how to apply it.
Monitor surface moisture and follow the humidity, fresh-air, and temperature recommendations for your mushroom species. A casing layer helps hold moisture, but it does not replace proper growing conditions.
Keep the bag sealed in a cool, clean location away from direct sunlight. Open when ready to apply.
| Weight | 2.3 lbs |
|---|---|
| Dimensions | 10 × 10 × 10 in |
| Size | 2 pounds, 5 pounds, 15 pounds |
Bill –
Got here fast and a good product.
Layla –
This casing worked great for my stuff
Emma –
Great quality, but the instructions were limited. There is info on your site that is helpful though, maybe consider including that with this product. I am still satisfied though, and I thought your grain as well.
Beth –
worked good
Jaylyn –
Really fresh and came quick!!
Redford –
Worked well and I THINK it increased my yield. Easy to use and comes vacuum sealed which I appreciate
Ed Ridge –
super high quality casing layer, and came with super detailed instructions on how much to use and when. 10/10 will be buying more.
Nate –
Easy to use casing layer. I probably wouldn’t bother to use casing if it didn’t come in this form, but I do notice a difference.
Anono –
I ordered 5 pounds of casing layer and it is more than enough for what I need. A little bit goes a long way. This product is high quality.
Sadi Limbach –
Really helpful + easy
Lee –
This casing layer worked exactly as it was supposed to.
Heather –
Hello great product thank you!! I used this and got 3 flushes on my monotub.
ACTUALLY WORKS GREAT –
Was skeptical if casing layer even helps , grown many times before just fine and never used it. Decided I’d give it a try and WOW I have never seen such even canopy. Without a doubt adding this to my next grows 10/10!!!
Zack Nelson –
good price and easy to use
Coop –
Bought this and CVG, had a great harvest.
todcore –
Good casing laye but you don’t need much. That 5 pound bag was way more than I needed for 1 monotub. Tossed the remaining in with substrate I made and I;m impressed witth the results.