Ultimate ½ Pint Substrate Jars (6-Pack)Ultimate Pint Substrate Jars (6 Pack) The Original BRF (Brown Rice Flour) PF Tek MethodPerfected Over 15 Years Still the fastest and easiest way to grow mushrooms, our Ultimate Pint Substrate Jars are built on the time tested PF Tek method using premium brown rice flour. With over a decade of refinement and thousands of satisfied growers, these jars remain a top choice for beginners and seasoned cultivators alike. Whats Inside Each Jar: Natural

meticulously designed for both professional mushroom growing farms and dedicated mycologists

Recommended circuit: 40–50 AMP breaker

Grain spawn is not included

Grow Hen of the Woods indoors with our exclusive

direct sun

or entry-level retail customers

the Ultimate Mushroom Growing & Incubator Kit delivers reliable

Moisture-Resistant Probe – Designed to perform reliably in high-humidity grow environments

Known as the Ant Fungus

this 28oz sterilized liquid culture system transforms a single spore syringe into vigorous liquid mycelium—ready to inoculate up to 40+ spawn bags or 160 half-pint jars

Why Willy’s Blend Is Legendary

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