Unicorn T3 .2 Micron Spawn Filter Patch Bags

Produced Domestically in Plano Texas!!!

Unicorn only sells wholesale boxes. I’ll break it down for you for a 20% increase in price. It takes zero effort to middleman bags.

Unicorn Bags are widely regarded as the industry standard for mushroom cultivation, especially among commercial growers and serious hobbyists. Their superiority stems from a combination of material quality, design, durability, sterility, and customization options.

Here’s why Unicorn Brand fruiting and spawn bags are considered superior:

🏆 1. High-Quality Polypropylene Film

• Made of autoclavable polypropylene, which:

  • Withstands high temperatures (121–135°C) for pressure sterilization

  • Is durable and resists tearing under weight or compression

  • Maintains structural integrity during colonization and fruiting

• Has ideal oxygen and CO₂ permeability for mycelial growth

🎛️ 2. Micron-Precision Filter Patches

Unicorn’s filter patches are engineered for precise gas exchange while blocking contaminants.

• Available in multiple filter types (Type A, B, T, etc.), ranging from 0.2 to 5.0 microns

• Tailored to:

  • Spawn production (low gas exchange to retain moisture)

  • Fruiting bags (higher gas exchange for CO₂ release)

• Filters are heat-sealed, reducing contamination risk

🧪 3. Proven Sterilization Compatibility

• Autoclavable and withstands long sterilization cycles

• Reliable in steam sterilizers, pressure cookers, or commercial autoclaves

• No melting, warping, or seal degradation when used correctly

🧱 4. Excellent Seal Strength and Integrity

• Designed with wide gusseted bottoms, which:

  • Allow bags to stand upright during colonization

  • Create a large surface area for mycelial growth

• Bags can be impulse-sealed, taped, or tied after inoculation

• Maintain seal even after weeks of colonization

🧩 5. Sizes and Types for Every Application

Unicorn offers a wide variety of bag sizes and filter combinations:

Bag ModelTypical Use CaseFilter TypeSize (approx.)3TSpawn bags0.2 μm5" × 4" × 18"XLS-TFruiting blocks0.5 μm6" × 5" × 24"14AGeneral purpose0.5 μm5" × 4" × 18"10TSmall projects0.2 μm4" × 3" × 16"

🧼 6. Sterility and Contamination Control

• Designed to reduce vectors of contamination

• Filters bonded during production—no glues or adhesives that can harbor bacteria

• High clarity bags make it easy to monitor mycelial health and contaminants

🌱 7. Industry Trust and Widespread Adoption

• Trusted by mushroom farms, labs, and research institutions worldwide

• Frequently used for:

  • Oyster, lion’s mane, shiitake, and reishi cultivation

  • Cordyceps and mycorrhizal research

• Unicorn pioneered many industry practices still in use today

🧠 8. Consistency and Manufacturing Standards

• Manufactured in the USA under strict quality control

• Bags are consistent in thickness, filter placement, and sealing performance

• Avoids the variability and failures common with cheaper or imported alternatives

🔄 9. Reusability (in some cases)

• While technically disposable, some growers reuse Unicorn bags after cleaning and re-sterilizing them (especially for grain spawn)

• The plastic is strong enough for limited reuse if carefully handled

🔬 10. Customization Options

Unicorn can customize:

• Filter size and position

• Bag dimensions

• Private labeling for commercial growers
  This level of customization is rare in the industry.

✅ Summary: Why Unicorn Bags Are Superior

• 🔬 Lab-grade filter design

• 🧱 Strong, autoclavable polypropylene

• 🧩 Broad range of customizable formats

• 🧼 Excellent contamination control

• 🌍 Trusted by professionals globally

Whether you’re growing gourmet mushrooms at home or scaling up to a commercial operation, Unicorn bags offer unmatched reliability and performance.