Description
Popcorn for Growing Mushrooms
Out-Grow's premium yellow popcorn is a reliable, nutrient-rich grain substrate trusted by mushroom cultivators at every level. Popcorn grain offers an ideal balance of starch, protein, and moisture retention, making it one of the most effective substrates for rapid mycelium colonization across a wide range of species including oyster, shiitake, lion's mane, and many others.
The uniform kernel size promotes consistent colonization throughout the grain mass, reducing the risk of uneven growth or contamination. At 10lbs per bag, you have enough substrate to run multiple grain jars or bags simultaneously, making it well suited for both small home grows and larger production cycles.
Popcorn grain is widely favored for its availability, low cost, and performance — producing dense, fully colonized grain spawn that transfers efficiently to bulk substrate.
Preparation: Rinse the popcorn thoroughly and soak in water for 12-24 hours. Simmer on the stovetop for 20-30 minutes until kernels are hydrated but not splitting. Drain and allow to surface dry until no visible moisture remains on the kernel exterior. Load into mason jars or grain bags, sterilize at 15 PSI for 2-2.5 hours, allow to cool completely, then inoculate with your chosen culture.
Yellow Popcorn 10 lbs
Product Description
Key Features
Mushroom Cultivation Benefits
Usage Instructions
Storage and Shelf Life
Additional Tips
Description
Popcorn for Growing Mushrooms
Out-Grow's premium yellow popcorn is a reliable, nutrient-rich grain substrate trusted by mushroom cultivators at every level. Popcorn grain offers an ideal balance of starch, protein, and moisture retention, making it one of the most effective substrates for rapid mycelium colonization across a wide range of species including oyster, shiitake, lion's mane, and many others.
The uniform kernel size promotes consistent colonization throughout the grain mass, reducing the risk of uneven growth or contamination. At 10lbs per bag, you have enough substrate to run multiple grain jars or bags simultaneously, making it well suited for both small home grows and larger production cycles.
Popcorn grain is widely favored for its availability, low cost, and performance — producing dense, fully colonized grain spawn that transfers efficiently to bulk substrate.
Preparation: Rinse the popcorn thoroughly and soak in water for 12-24 hours. Simmer on the stovetop for 20-30 minutes until kernels are hydrated but not splitting. Drain and allow to surface dry until no visible moisture remains on the kernel exterior. Load into mason jars or grain bags, sterilize at 15 PSI for 2-2.5 hours, allow to cool completely, then inoculate with your chosen culture.