Sakato PE Mushroom Grow Bags, #5 Medium - 5 Micron - Opaque, Pack of 20

SakatoPE Mushroom Grow Bags

Professional precision from Japan's industry leader. Sakato Mushroom Grow Bags are meticulously engineered for the demanding needs of fruiting blocks. Crafted by Japan's largest producer of cultivation bags, these polyethylene (PE) bags turn your substrate into a self-contained, optimized biome, protecting your crop while facilitating the robust gas exchange required for high-yield harvests.

Superior Polyethylene Construction

While many bags utilize polypropylene, Sakato uses 2.3 mil (60 microns) thick polyethylene for its superior mechanical resistance. PE is more pliable and less prone to the "fatigue" micro-tears and pinholes that can occur at fold points in traditional bags. To further ensure reliability, these bags feature double-sealed bottom gussets to eliminate the most common failure point in mushroom cultivation.

Optimized Gas Exchange & Contamination Control

• 5-Micron Filter Patch: Designed specifically for substrate blocks, this 25 mm filter provides increased airflow to support faster colonization and optimal oxygen levels.
• Tyvek® T-Filters: These high-density polyethylene (HDPE) patches offer exceptional strength and breathability while maintaining a sterile barrier.
• Fully Autoclavable: Rated for temperatures up to 121°C (250°F), ensuring complete sterilization of your substrate.

#6 Medium Black Bag

The professional choice for light-sensitive species. The black material completely blocks light to prevent premature pinning, ensuring the mycelium fully consumes the substrate nutrients before fruiting begins.

#5 Medium Opaque Bag

An excellent all-around substrate bag. The opaque material limits light exposure to discourage wasted energy early in the growth cycle, leading to larger, more concentrated harvests.

Technical Specifications

Quick Usage Tips:

• Avoid spilling substrate on the upper region of the bag to ensure a perfect heat seal.
• Fold gussets and roll the neck to remove excess air before sterilization.
• Do not overpack your sterilizer; leave space for steam to circulate freely for complete sterilization.