Empty Grain Spawn Bag with Injection Port – Sterile, Durable, and Ready to Fill (10 Bags)

Empty Grain Spawn Bag with Injection Port – Sterile, Durable, and Ready to Fill

Simplify your mushroom cultivation process with our high-quality empty grain spawn bags, featuring a self-healing injection port and a 0.2-micron filter patch for optimal airflow and contamination resistance.

Perfect for home growers and commercial cultivators, these bags are designed for sterilizing and colonizing grain spawn with your favorite liquid cultures.

Product Features:

• 🧴 Injection Port – self-healing port for clean, easy liquid culture inoculation

• 🌬️ Filter Patch (0.2 micron) – allows gas exchange while keeping contaminants out

• 📦 Size: Holds up to 3–5 lbs of hydrated grain

• 🔥 Autoclavable & Durable – withstands high-pressure sterilization without breaking or melting

• ✅ Heavy-Duty Polypropylene – built for strength, flexibility, and consistent results

Instructions: Fill with prepared grain, seal with an impulse sealer or tie, then sterilize before inoculation.

Whether you're growing gourmet, medicinal, or experimental mushrooms, our spawn bags give you a clean, efficient start—every time.