Lab-Quality Gypsum Powder

Essential for Mushroom Growers

This premium gypsum powder is a must-have for any serious cultivator. It plays a key role in balancing pH, boosting calcium and sulfur levels, improving water retention, and creating the kind of airy, well-structured substrate that mycelium loves.

Boosts Mycelium Growth

By enhancing oxygen flow and preventing substrate clumping, gypsum sets the stage for strong, healthy colonization. Better airflow means fewer chances for contamination.

Locks in Moisture, Not Trouble

Its water-holding properties help maintain ideal humidity levels without turning your mix into a soggy mess.

Not Just for Fungi

Also works wonders in soil—improving structure, reducing compaction, and delivering essential nutrients to plants. Made from high-purity material: 97% calcium sulfate dihydrate.