North America, South America, and Asia

White Mushroom Strains

Fresh Market Perfection

Amycel's white button mushroom strains are built for fresh market commercial farms: dense caps, high pick rates, and consistent performance.

Clean, consistent caps with strong hold
Aggressive colonization in broad conditions
Designed for labor efficiency at scale

Triple X

Agaricus bisporus

Our fastest in every phase of growing and production. High density and excellent quality across growing conditions.

Delta

Agaricus bisporus

More moderate pinner. Smooth, round caps that hold without opening. Gives growers flexibility across size mixes. Built to compete in the premium fresh market.

Exxcalibur™

Agaricus bisporus · Released 2023

Our newest and most advanced strain. The vigor of Triple X and the body of Phoenixx. Thicker stems, fewer clumps, better staggering, and pick rates up to 25% faster. Engineered for growers who can’t afford to lose time.

Millet

Inoculated with pure mushroom culture under tightly controlled conditions. Small grain size for thorough, even colonization.

Traditional Choice

Exxpress

Full-synthetic, grain-free substrate. Exxpress runs faster than millet. Proprietary formulation helps protect against Trichoderma green mold. Ideal for operations looking to reduce grain dependency.

High-Performance

Onyxx

The speed of synthetic spawn with the energy profile of grain. Faster than millet while offering protection against Trichoderma green mold.

High-Performance

PAC Casing Spawn

Premium compost and nutrient blend. Best in-class casing layer integration. Uniform pinning in all moisture ranges. An advanced formulation for a balanced flush and disease protection. Adapts to variable growing environments for consistent, high-performance results. For all Amycel strains.

For All Strains