Available in 3 & 5 LBS
Regular price
$30.95
Weight
Boost your mushroom cultivation with Mycelium’s sterile whole oats grain spawn bags, available in both 3 lb and 5 lb sizes. Whole oats offer a dense, moisture-retentive grain structure that supports even colonization and sustained nutrient delivery. Rich in complex carbohydrates, fiber, and proteins, they provide an ideal environment for robust mycelial growth and extended fruiting potential. Each bag is fully sterilized and includes a self-healing injection port and a 0.2-micron filter patch for safe, easy inoculation and optimal airflow. Compatible with a wide range of gourmet and medicinal mushroom strains. (Liquid culture sold separately.)
Why you'll love it
Moisture-Retentive for Even Growth
Whole oats retain moisture effectively, promoting consistent colonization and long-lasting hydration for sustained mycelial development.
Nutrient-Dense Substrate
Packed with complex carbs, fiber, and protein, whole oats deliver slow-release nutrients ideal for strong mycelial expansion and multiple flushes.
Sterile & Easy Inoculation
Pre-sterilized and ready to use with a self-healing injection port, these bags make inoculation simple and reduce contamination risks.
Contamination-Proof Design
The 0.2-micron filter patch provides essential gas exchange while keeping harmful contaminants out, supporting healthy mycelial growth.
Sized for Every Grower
Offered in 3 lb and 5 lb sizes, these grain bags are perfect for cultivators managing everything from small home projects to larger operations.
Regular price
$30.95
Weight
Boost your mushroom cultivation with Mycelium’s sterile whole oats grain spawn bags, available in both 3 lb and 5 lb sizes. Whole oats offer a dense, moisture-retentive grain structure that supports even colonization and sustained nutrient delivery. Rich in complex carbohydrates, fiber, and proteins, they provide an ideal environment for robust mycelial growth and extended fruiting potential. Each bag is fully sterilized and includes a self-healing injection port and a 0.2-micron filter patch for safe, easy inoculation and optimal airflow. Compatible with a wide range of gourmet and medicinal mushroom strains. (Liquid culture sold separately.)
Why you'll love it
Moisture-Retentive for Even Growth
Whole oats retain moisture effectively, promoting consistent colonization and long-lasting hydration for sustained mycelial development.
Nutrient-Dense Substrate
Packed with complex carbs, fiber, and protein, whole oats deliver slow-release nutrients ideal for strong mycelial expansion and multiple flushes.
Sterile & Easy Inoculation
Pre-sterilized and ready to use with a self-healing injection port, these bags make inoculation simple and reduce contamination risks.
Contamination-Proof Design
The 0.2-micron filter patch provides essential gas exchange while keeping harmful contaminants out, supporting healthy mycelial growth.
Sized for Every Grower
Offered in 3 lb and 5 lb sizes, these grain bags are perfect for cultivators managing everything from small home projects to larger operations.
Product details & instructions
Ingredients
Storage
Instructions
Product FAQs
Fungi our formula was made for
A curated lineup of premium species that thrive on this hardwood substrate blend
Lion's Mane
Lion's Mane
Known for boosting focus and mental clarity, Lion’s Mane also brings rich flavor and a tender, seafood-like texture to dishes. It’s a high-performing strain that grows quickly with reliable yields.
Shiitake
Shiitake
Shiitake mushrooms offer a bold, savory flavor and buttery, umami-rich texture—plus natural immune support. This reliable strain produces generous flushes, perfect for beginners.
Reishi Varieties
Reishi Varieties
Reishi mushrooms are valued for their immune-supporting compounds and glossy, antler-like or fan-shaped growth—popular for at-home wellness routines and easy indoor growth.
Oyster Varieties
Oyster Varieties
Known for their vibrant colors and quick growth, oyster mushrooms offer a delicate, savory taste and are ideal for both gourmet dishes and beginner-friendly grows.
Maitake
Maitake
Maitake mushrooms form large, frond-like clusters with deep, savory flavor. Rich in immune-supporting and antioxidant compounds, they’re ideal for cooking, drying, or extracts.
Golden Enoki
Golden Enoki
Golden Enoki mushrooms are delicate with long stems and small caps, offering a mild, slightly fruity flavor. Ideal for soups and garnishes, they grow best in cool, humid conditions.
Complete your grow