Vermiculite 4 Cubic Foot Bag A-2 Medium (OMRI ORGANIC)

Palmetto Organic Professional Grade Vermiculite in a 4 cubic foot bag — about 30 gallons of A-2 medium vermiculite, OMRI Listed for organic use. It holds water evenly, making it a go-to for mushroom substrate hydration, casing layers and PF Tek.

The A-2 medium grade sits between fine and coarse, a better fit for mushroom work than the coarse vermiculite sold at most big-box stores. It’s asbestos-free.

• OMRI organic
• A-2 medium
• Asbestos-free
• 4 cu ft bag

• 4 cu ftBag size
• ~30 galVolume
• A-2Medium grade
• OMRIOrganic listed
• PalmettoProfessional grade

Why growers use this vermiculite

• Medium grade – A-2 medium coarseness is well suited to mushroom cultivation.
• Even moisture – Absorbs water evenly to keep substrate and casing hydrated.
• OMRI Listed – Certified for organic use.
• Asbestos-free – Professional grade vermiculite from Palmetto Organic.
• Bulk value – A 4 cubic foot bag covers many jars, bags and tubs.

What you can use it for

• PF Tek and BRF substrate — learn about PF Tek
• Dunk and roll for PF cakes
• Mixing into bulk substrate, such as with coco coir
• Casing layers on bulk monotubs — casing guide
• General moisture retention

How to use it

1. Measure. Scoop out what you need for your recipe; reseal the bag to keep it clean and dry.
2. Hydrate. Add water gradually and mix until it’s evenly moist, not dripping.
3. Mix or layer. Combine it into your substrate, or spread it as a casing layer over colonized bulk.
4. Prepare as your method requires. Sterilize or pasteurize as your recipe calls for before use.

Specifications

FAQ

• Raw materials
• Casing guide
• Perlite 4 cu ft