How can I seal the bag without an impulse sealer?

I use a vacuum sealer, without the vacuum.

Can this bag be autoclaved or put in a pressure cooker?

Yes. I just ran four bags through the pressure cooker this week and they all came out in perfect condition.

Where do i inject i thought i could go through the filter but that doesnt seem like a good idea. Can i tape over my holes?

i would buy some injection ports, tape them onto hte bag, and inject through that, otherwise you'll leave an opening on your bag and that's going to be a source of contamination. I bought 100 filter injection ports on amazon for like 9 bucks, and i just tape them to the exterior of my bags that dont come with their own ports, and inject through that. You'll have a much better success rate, if you leave any kind of opening you can expect that 40% of your bags (or more, depending on your conditions) will contaminate. Never inject directly through the plastic.

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50 Pack, Mushroom Grow Bags, Heavy Duty 3 Mil Polypropylene Mushroom Substrate Bags, Large Size 8" X 5" X 20" for Mushroom Cultivation, Spawn Bags, and Sawdust Fruiting Blocks

50 Pack, Mushroom Grow Bags, Heavy Duty 3 Mil Polypropylene Mushroom Substrate Bags, Large Size 8" X 5" X 20" for Mushroom Cultivation, Spawn Bags, and Sawdust Fruiting Blocks

Product ID: 464488637

Details

Color
Clear
Material
Polypropylene
Planter Form
Vertical
Special Feature
Bagged
Style
Antique

📏8" x 5" x 20" Large Size

🌬️0.2 Micron Breathable Filter

🛡️3 Mil Heavy-Duty Polypropylene

$70.60

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🍄 Grow Like a Pro, Bagged to Perfection!

BREATHE EASY GROW BETTER - Integrated 0.2-micron filter ensures optimal gas exchange while blocking contaminants—professional-grade airflow for premium yields.
DURABILITY MEETS PRECISION - Crafted from 3 Mil thick polypropylene, these bags withstand high temps and rough handling without compromising clarity for easy growth monitoring.
BULK PACK FOR SERIOUS GROWERS - 50 bags per pack with responsive 24-hour support—scale your mushroom farm or school project with confidence and zero downtime.
VERSATILE CULTIVATION POWERHOUSE - Perfect for oyster, Ganoderma, and other mushroom species, plus spawn and sawdust fruiting blocks—ideal for hobbyists and pros alike.
GENEROUS CAPACITY COMPACT FOOTPRINT - Each bag holds up to 7 pounds of substrate in a space-saving, gusseted design that stands upright for efficient cultivation.

The Gymgit 50 Pack Mushroom Grow Bags are heavy-duty, large-sized polypropylene bags designed for professional and hobbyist mushroom cultivation. Featuring a durable 3 Mil thickness, a spacious 8" x 5" x 20" gusseted design, and a 0.2-micron breathable filter, these bags optimize substrate capacity and airflow while preventing contamination. Ideal for various mushroom species and spawn blocks, this bulk pack offers reliable, space-efficient growing with excellent customer support.

Specifications

ASIN	B0B4DJSHD8
Best Sellers Rank	#113,183 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #238 in Plant Grow Bags
Brand Name	Gymgit
Capacity	8 Pounds
Color	Clear
Customer Reviews	4.4 4.4 out of 5 stars (401)
Finish Types	Unfinished
Included Components	Plant Hanger
Indoor Outdoor Usage	Indoor, Outdoor
Item Dimensions	8 x 20 x 5 inches
Item Dimensions D x W x H	5"D x 8"W x 20"H
Item Type Name	planting grow bags
Item Weight	1 Pounds
Manufacturer	Gymgit Store
Manufacturer Part Number	50Pcs Mushroom Bags
Material Type	Polypropylene (PP)
Model Number	Mushroom Grow Bags
Mounting Type	Floor Standing
Number of Levels	1
Number of Pieces	50
Other Special Features of the Product	Bagged
Pattern	Solid
Plant or Animal Product Type	Fruit
Planter Form	Vertical
Product Style	Antique
Shape	Rectangular
Size	50-Pack
Theme	Mushroom Cultivation
Unit Count	50.0 Count

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