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Comes in an additional vacuum seal bag for extra protection and guaranteed contamination free arrival. Prepared by experts by hand in small batches; this rye berry grain bag has minimum amount of burst berries and is hydrated to perfect moisture content for optimum mycelium growth.

If you have any issues or questions, just reach out to us. This will dramatically speed up the colonization process. Mixing with substrate: we recommended 1 lb of colonized grain spawn for every 5 lb of manure or hardwood substrate.
Storing your bag: grain bags should be stored at room temperature out of direct sunlight. We want your grow to be a success! The temperature for incubation shouldn't exceed 75 degrees F or dip below 55 degrees F. Inoculation: to inoculate the grain bag, simply inject your spore or culture syringe through the port in a sterile location. Optimal moisture content: without moisture, mycelium will not colonize. After a couple of weeks, you should start to see mycelium growing on the grain.

Easy to use: perfect for inoculation via spore injection, grain-to-grain, or by adding agar directly to the bag. Mycologists consider this blend as the fastest colonizing mix on the market! Perfect for medicinal and gourmet mushrooms: Whether you are growing lions mane, or many other species of mushrooms, oyster, medicinal mushrooms, this substrate will provide the nutrients your mycelium will love!.
Millet's size maximizes the surface area in which mycelium can grow, and hardwood Oak ensures the moisture content is perfectly distributed. No injection port needed: our team of mycologists designed this product so you can inject a liquid culture syringe directly into the bag without the need for a self healing injection port. Simply insert your needle into the grain bag, inject the liquid culture into the grain, and cover the point of injection with tape.



B>best quality mushroom bags available - these bags are the best quality mushroom spawn bags available and will help you easily make perfect grain spawn bags every time.

Unlike cheap Chinese bags, these bags remain flexible even after sterilization. B>convenient - the integrated "self-healing" injection port allows for fast and easy inoculation.
B>strong and flexible - our bags are manufactured using a special Polypropylene blend making them the strongest and most trusted grow bags in the industry. B>fully sealable prior to pressure cooker- seal before pressure cooker/autoclave! the breathable filter patch allows for pre-seal without worry of bag deformation from gas buildup.

Autoclavable bags with Breathable window 5. 5cmX5. 5cm. Myco bags filter patch bags:20cmx12cmx50cm 5"gusset x19" longx 8”wide, 05 micron filter patch, typically for 5-8 pounds block, heavy duty 3 mil polypropylene Sealable, Autoclavable and Durable Easily grow your own mushrooms in bulk 100% sterilized premium mushroom growing substrate Fortified with all necessary vitamin's and minerals Moisture content guaranteed and ph balanced Works perfectly with fully colonized spawn.


1. INTERGALACTIC MUSHROOM
#ad
INTERGALACTIC MUSHROOM 3lb Sterilized and Vacuum Sealed Organic Rye Berry Grain Bag with Injection Port- 3lbs 2 Bags Each 1.5lb
#adINTERGALACTIC MUSHROOM #ad - 3lb 2 x 1. 5lb of perfectly hydrated and sterilized rye berries in a 5 micron filter bag with injection port. Injection port makes it easy and worry free to inject your spores or liquid culture.Comes in an additional vacuum seal bag for extra protection and guaranteed contamination free arrival. Prepared by experts by hand in small batches; this rye berry grain bag has minimum amount of burst berries and is hydrated to perfect moisture content for optimum mycelium growth.
More information #ad
Works for any mushroom strain. Just inject your choice of spores or liquid culture sold or made separately for fast colonization. Made with usa grown and Organic Rye Berries. Sterilized and vacuum sealed grain bag is guaranteed to arrive contamination free. This product includes 2 grain bags, each 1. 5lb, for a total of 3lb of sterilized and ready to inoculate rye berries.Brand | INTERGALACTIC MUSHROOM #ad |
Manufacturer | Intergalactic Mushroom #ad |
Height | 5 Inches |
Length | 7 Inches |
Width | 7 Inches |
More information #ad
2. North Spore
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North Spore 3lb Organic Hydrated Sterilized Grain Bag w/ Self-Healing Injection Port | Sterile Mushroom Spawn Bag w/ 0.2 Micron Filter Patch | USDA Certified Organic
#adNorth Spore #ad - Premium organic ingredients: Each spawn bag contains our proprietary blend featuring hydrated, nutrient-rich organic millet and wheat berries. We also recommend using 2. 5-5ccs per 3 lb grain bag. 100% guarantee: we stand by the integrity of our products and we want to ensure that you are completely satisfied with your North Spore experience.If you have any issues or questions, just reach out to us. This will dramatically speed up the colonization process. Mixing with substrate: we recommended 1 lb of colonized grain spawn for every 5 lb of manure or hardwood substrate.
More information #ad
When the bag is completely white with mycelium your spawn is ready to use. They can also be stored for several months before use. No refrigeration is necessary. Storing your bag: grain bags should be stored at room temperature out of direct sunlight. We want your grow to be a success! The temperature for incubation shouldn't exceed 75 degrees F or dip below 55 degrees F. Inoculation: to inoculate the grain bag, simply inject your spore or culture syringe through the port in a sterile location. Optimal moisture content: without moisture, mycelium will not colonize. After a couple of weeks, you should start to see mycelium growing on the grain.
Brand | North Spore #ad |
Manufacturer | North Spore #ad |
Weight | 3 Pounds |
Part Number | EQUIP-INJECTBAG-3LB-V2 |
More information #ad
3. MushroomSupplies.com
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MushroomSupplies.com Sterilized Grain Bag for Mushroom Growing | Millet Substrate | 0.2 Micron Filter Mycobag Grow Kit | Mycology Cultivation Supplies 3LB
#adMushroomSupplies.com #ad - Superior sterilization process: Our proprietary sterilization process is best-in-class and includes hospital-grade sterility testing. Rapid colonization blend: a proprietary mix of millet and hardwood oak that guarantees a high-yield colonization that is superior to traditional grain substrates, such as Rye Berries.Easy to use: perfect for inoculation via spore injection, grain-to-grain, or by adding agar directly to the bag. Mycologists consider this blend as the fastest colonizing mix on the market! Perfect for medicinal and gourmet mushrooms: Whether you are growing lions mane, or many other species of mushrooms, oyster, medicinal mushrooms, this substrate will provide the nutrients your mycelium will love!.
More information #ad
Works great for at-home hobbyists and large-scale cultivators. Millet's size maximizes the surface area in which mycelium can grow, and hardwood Oak ensures the moisture content is perfectly distributed. No injection port needed: our team of mycologists designed this product so you can inject a liquid culture syringe directly into the bag without the need for a self healing injection port. Simply insert your needle into the grain bag, inject the liquid culture into the grain, and cover the point of injection with tape.
Brand | MushroomSupplies.com #ad |
Manufacturer | MushroomSupplies.com #ad |
Height | 4.5 Inches |
Length | 7.87 Inches |
Weight | 3 Pounds |
Width | 7.87 Inches |
More information #ad
4. Liquid Fungi
#ad
Sterilized Rye Berry Mushroom Substrate Bags for Grain Spawn 6 x 1lb Bags.
#adLiquid Fungi #ad - Start using multi-spore syringes, liquid culture, or agar plates. Enhanced with all the needed nutrients. Perfect for mushroom grain spawn bags. Ready for inoculation and includes instructions. 6 one pound bags of sterilized rye grain berries.More information #ad
Brand | Liquid Fungi #ad |
Manufacturer | Liquid Fungi #ad |
Height | 6 Inches |
Length | 9 Inches |
Weight | 6.5 Pounds |
Width | 6 Inches |
More information #ad
5. BetterFungi
#ad
Make Your Own Master Grain Spawn, BetterFungi 3 Lb Sterilized Grain Bag with Injection Port Milo
#adBetterFungi #ad - Please note that this is a perishable product - Please refrigerate if not used immediately after receiving the product. Due to unreliable nature of liquid culture/spores, seller is not responsible for this product once it has been inoculated or if issues not reported within 48 hours whichever occurs first.More information #ad
Self-healing Injection Port for easy inoculation. Please inspect the product on arrival for any issues and report same within 48 hours. 3 lbs of sterilized grain in a plastic grow bag with 02 filter.Brand | BetterFungi #ad |
Manufacturer | BetterFungi #ad |
Weight | 3 Pounds |
More information #ad
6. Generic
#ad
Medium 4″Deep X 5″ Wide X 18″ Tall, Milliken Mushroom Supply, Mushroom Spawn Bags with self-Healing Injection Port, 0.2 Micron Gas Filter, 3 Mil. Pack of 10, Trusted by The Pros
#adGeneric #ad - B>most versatile mushroom bags on the market - use for grain spawn or as an all-in-one mushroom Grow Bag. Breathable 02 micron filter helps to block airborne particulates while providing plenty of fresh-air needed for healthy mycelium growth.B>best quality mushroom bags available - these bags are the best quality mushroom spawn bags available and will help you easily make perfect grain spawn bags every time.
More information #ad
B>convenient inoculation - the integrated "self-healing" injection port allows for fast and easy inoculation with spore syringe or liquid culture syringe. B>02 micron gas-exchange filter - each bag has a high quality 02 micron filter that allows fresh air exchange during the spawn colonization process. B>proudly made in the usa: highest quality mushroom bags available.Brand | Generic #ad |
Height | 18 Inches |
Length | 4 Inches |
Width | 5 Inches |
More information #ad
7. AMIATCH
#ad
Milliken Mushrooms | Mushroom Grow Bags with Injection Port, 3 Mil Thickness. Pack of 10 Professional Mushroom Grow Bags | autoclavable, 0.5 Micron ÇO2 Filter
#adAMIATCH #ad - After autoclave these bags remain pliable; no more holes or tears exposing sterile spawn to outside air or contaminants. Breathable 05 micron filter helps to block airborne contaminates while providing plenty of fresh-air needed for healthy mycelium growth.Unlike cheap Chinese bags, these bags remain flexible even after sterilization. B>convenient - the integrated "self-healing" injection port allows for fast and easy inoculation.
More information #ad
B>most versatile mushroom bags on the market - use for spawn or as an all-in-one mushroom grow Bag. B>proudly made in the usa - far superior quality than cheaper Chinese imports. B>strong and flexible - our bags are manufactured using a special Polypropylene blend making them the strongest and most trusted grow bags in the industry. B>fully sealable prior to pressure cooker- seal before pressure cooker/autoclave! the breathable filter patch allows for pre-seal without worry of bag deformation from gas buildup.
Brand | AMIATCH #ad |
Manufacturer | Milliken Mushroom Supply, Ltd. #ad |
More information #ad
8. SUCOHANS
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3 Mil Polypropylene,for Su,for Substrate Autoclavable Mushroom Cultivation, Mushroom Bags,Mushroom Grow Bag/Farm-Mushroom Spawn Bags/Sealable Spawn/Myco Bags,Large Size 8" X 5" X 19",0.5 Micron Filter
#adSUCOHANS #ad - Universal respiratory membrane Spawn 05 micron filter, 3 Mil Polypropylene. Spawn bags suitable for many kinds of bacteria:Mushrooms and bamboo fungus Ganoderma mushroom, Apply to Wood chips.Autoclavable bags with Breathable window 5. 5cmX5. 5cm. Myco bags filter patch bags:20cmx12cmx50cm 5"gusset x19" longx 8”wide, 05 micron filter patch, typically for 5-8 pounds block, heavy duty 3 mil polypropylene Sealable, Autoclavable and Durable Easily grow your own mushrooms in bulk 100% sterilized premium mushroom growing substrate Fortified with all necessary vitamin's and minerals Moisture content guaranteed and ph balanced Works perfectly with fully colonized spawn.
More information #ad
American edible species breathable bag:Polypropylene breathable bag/ PP breathable bag Bacterial permeability barrier, with microporous filter patches that allow gas exchange but preclude the passage of contaminants.Brand | SUCOHANS #ad |
Manufacturer | Amazing-us #ad |
Height | 19 Inches |
Length | 5 Inches |
Width | 8 Inches |
More information #ad
9. BetterFungi
#ad
Make Your Own Master Grain Spawn, 3 LB Rye Sterilized Grain Bag with Injection Port
#adBetterFungi #ad - 3 lbs of sterilized grain in a plastic grow bag with 02 filter. Self-healing Injection Port for easy inoculation. Due to unreliable nature of liquid culture/spores, seller is not responsible for this product once it has been inoculated or if issues not reported within 48 hours whichever occurs first.More information #ad
Please inspect the product on arrival for any issues and report same within 48 hours. Please note that this is a perishable product - Please refrigerate if not used immediately after receiving the product.Brand | BetterFungi #ad |
Manufacturer | BetterFungi #ad |
Height | 0.79 Inches |
Length | 1.57 Inches |
Weight | 3 Pounds |
Width | 1.57 Inches |
More information #ad
10. Liquid Fungi
#ad
Sterilized Rye Berry Mushroom Substrate Bags for Grain Spawn 18 x 1lb. Bags
#adLiquid Fungi #ad - Enhanced with all the needed nutrients. Start using multi-spore syringes, liquid culture, or agar plates. 18 one pound bags of sterilized rye grain berries. Ready for inoculation and includes instructions. Perfect for mushroom grain spawn bags.More information #ad
Brand | Liquid Fungi #ad |
Manufacturer | Liquid Fungi #ad |
Height | 6 Inches |
Length | 12 Inches |
Weight | 20 Pounds |
Width | 12 Inches |
More information #ad