50pcs PP Mushroom Grow Bags 0.2µm Filter – Spawn & Culture

50-Pack PP Mushroom Planting Bags with 0.2µm Breathable Filter

Grow mushrooms like a pro with these premium clear polypropylene (PP) mushroom planting bags. Engineered with a precision 0.2-micron two-way breathable membrane, these bags allow optimal air exchange while blocking bacteria, viruses, and unwanted microorganisms — creating the ideal sterile environment for mushroom spawn cultivation, tissue culture experiments, and more. Whether you're a home hobbyist or a commercial grower, these bags deliver reliable performance at every scale.

Product Specifications

• Material: High-quality Polypropylene (PP) Plastic
• Color: Clear/Transparent
• Thickness: 6mm (0.24 in)
• Filter Pore Size: 0.2 micron two-way breathable membrane
• Weight: 100g per bag
• Quantity: 50 bags per pack
• Available Sizes:
  • 15×35cm (5.91×13.78 in)
  • 15×50cm (5.91×19.69 in)
  • 18×35cm (7.09×13.78 in)
  • 18×50cm (7.09×19.69 in)
  • 25×50cm (9.84×19.69 in)
  • 32×45cm (12.60×17.72 in)
  • 32×50cm (12.60×19.69 in)
• Made in Mainland China

Key Features

• High-Temperature Resistance: Withstands temperatures up to 135°C (275°F) and beyond, making these bags fully compatible with standard sterilization processes — no warping, melting, or tearing under heat.
• Precision Microporous Filtration: The 0.2-micron breathable membrane ensures fresh air circulates freely to feed your mycelium while forming an effective barrier against microbial contamination.
• Multiple Size Options: Seven size choices mean you can match the bag perfectly to your batch — from small home grows to large-scale commercial operations.
• Heavy-Duty Durability: At 6mm thick, these bags resist punctures, abrasion, and external pressure, keeping your substrate and spawn protected throughout the entire cultivation cycle.
• Wide Application Range: Ideal for shiitake, oyster, and other edible mushroom cultivation, as well as tissue culture experiments and scientific plant growth applications.

What's in the Box

50 × PP Mushroom Planting Grow Bags (size of your choice)

Notes

• Please allow a 1–2cm measurement tolerance due to manual sizing.
• Screen color settings may cause slight color variations from actual product appearance.

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Frequently Asked Questions

Q: What is the pore size of the breathable membrane on these mushroom grow bags?

A: Each mushroom planting bag features a 0.2-micron (0.2µm) two-way breathable membrane. This ultra-fine pore size allows adequate oxygen flow for mycelium and spawn growth while effectively preventing contamination from bacteria, viruses, and other microorganisms.

Q: Can I sterilize these PP mushroom bags in a pressure cooker or autoclave?

A: Yes! These bags are made from high-quality polypropylene (PP) and can withstand temperatures up to 135°C (275°F) or higher, making them suitable for standard pressure cooker and autoclave sterilization cycles used in mushroom cultivation without deforming or breaking.

Q: Are these grow bags suitable for both home and commercial mushroom cultivation?

A: Absolutely. The bags come in seven different sizes (ranging from 15×35cm to 32×50cm), making them versatile enough for small home hobby grows as well as large-scale commercial mushroom production. They are also widely used in tissue culture and plant growth experiments.

Q: What types of mushrooms can I grow in these bags?

A: These mushroom spawn bags are suitable for a wide variety of edible mushrooms, including shiitake, oyster mushrooms, lion's mane, and many others. They are also used in tissue culture and broader mycology research applications.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.