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Premium Brown Rice Mushroom Spawn Bag | Sterilized Grain Spawn with Injection Port | 1 lb Each (1)
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Premium Brown Rice Mushroom Spawn Bag | Sterilized Grain Spawn with Injection Port | 1 lb Each (1)

Original price was: $29.99.Current price is: $12.95.

Product Description

1 pound brown rice grain spawn bag

1 pound brown rice grain spawn bag

brown rice grain spawn bag next to sterilizers

brown rice grain spawn bag next to sterilizers

close up of the brown rice grain spawn bag filter and contents

close up of the brown rice grain spawn bag filter and contents

diagram showing how the brown rice grain spawn bag works

diagram showing how the brown rice grain spawn bag works

pile of sterilized rye berries in front of pressure cookers

pile of sterilized rye berries in front of pressure cookers

Jumpstart your mushroom cultivation with the Out Grow Premium Brown Rice Spawn Bag. Each 1 lb (1 quart) bag is fully hydrated, sterilized, and features a self-healing injection port plus a 5 micron filter patch for clean, hassle-free inoculation. Brown rice provides a smaller grain size compared to rye, leading to faster germination and more uniform mycelium expansion. Simply introduce 4–6 cc of spores or liquid culture, shake to distribute, and incubate upright at room temperature. Within 4–6 weeks, you’ll have robust mushroom spawn capable of inoculating up to 5 lbs of bulk substrate. With 14+ years of experience, Out Grow ensures quality and reliability in every bag.

100% natural grain selected for its smaller kernel size—perfect for faster spore germination and dense mycelial growth.
Pressure-sterilized at 15 PSI (for X hours) to eliminate contaminants. Each 1 lb (1 quart) bag is sealed with a 5-micron filter patch for optimal gas exchange.
Inoculate with 4–6 cc of spores or liquid culture. Shake gently to distribute and enjoy quick colonization with minimal contamination risk.
Once fully colonized, each bag can inoculate up to 5 lbs of bulk substrate for gourmet or medicinal mushroom varieties. Enjoy uniform mycelial expansion you can count on.
Backed by 14+ years of mushroom cultivation expertise. Instructions included for every step, and disclaimer: No returns on inoculated bags.

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Description

Price: $29.99 - $12.95
(as of Jun 15,2025 19:57:08 UTC – Details)


Product Description

1 pound brown rice grain spawn bag

1 pound brown rice grain spawn bag

brown rice grain spawn bag next to sterilizers

brown rice grain spawn bag next to sterilizers

close up of the brown rice grain spawn bag filter and contents

close up of the brown rice grain spawn bag filter and contents

diagram showing how the brown rice grain spawn bag works

diagram showing how the brown rice grain spawn bag works

pile of sterilized rye berries in front of pressure cookers

pile of sterilized rye berries in front of pressure cookers

Jumpstart your mushroom cultivation with the Out Grow Premium Brown Rice Spawn Bag. Each 1 lb (1 quart) bag is fully hydrated, sterilized, and features a self-healing injection port plus a 5 micron filter patch for clean, hassle-free inoculation. Brown rice provides a smaller grain size compared to rye, leading to faster germination and more uniform mycelium expansion. Simply introduce 4–6 cc of spores or liquid culture, shake to distribute, and incubate upright at room temperature. Within 4–6 weeks, you’ll have robust mushroom spawn capable of inoculating up to 5 lbs of bulk substrate. With 14+ years of experience, Out Grow ensures quality and reliability in every bag.

100% natural grain selected for its smaller kernel size—perfect for faster spore germination and dense mycelial growth.
Pressure-sterilized at 15 PSI (for X hours) to eliminate contaminants. Each 1 lb (1 quart) bag is sealed with a 5-micron filter patch for optimal gas exchange.
Inoculate with 4–6 cc of spores or liquid culture. Shake gently to distribute and enjoy quick colonization with minimal contamination risk.
Once fully colonized, each bag can inoculate up to 5 lbs of bulk substrate for gourmet or medicinal mushroom varieties. Enjoy uniform mycelial expansion you can count on.
Backed by 14+ years of mushroom cultivation expertise. Instructions included for every step, and disclaimer: No returns on inoculated bags.

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