Rye Grain Spawn Bags — 3 Pack | Sterilized & Ready to Inoculate

🍄 Three Bags of Sterilized Rye Grain Spawn

Rye grain is one of the most widely used spawn grains for gourmet and hobby mushrooms. This 3 Pack gives you three ready-to-inoculate 3lb bags at a bundle price.

Want to mix grains? Leave a note at checkout with your picks (rye, sorghum, millet, popcorn, or whole oats) and we'll pack them for you.

📦 What's Inside

• 3 × 3lb Sterilized Rye Grain Spawn Bags
• Each bag has a self-healing injection port and 0.2 micron filter patch

✅ Key Features

• 🧪 Autoclave sterilized — prepared to reduce contamination risk
• 💉 Self-healing injection port — inoculate without opening the bag
• 🌬️ 0.2 micron filter patch for gas exchange
• 🦄 Unicorn grow bags
• 💲 Bundle savings compared with buying single bags

🌱 Who Is This For?

Growers who inoculate grain from liquid culture, agar, or spores and then spawn to bulk substrate or expand to more grain. Want to compare grains? Try our Variety 3 Pack.

❓ How Do I Use It?

1. Wipe the injection port with an alcohol swab and flame-sterilize your needle
2. Inject liquid culture or spore solution through the port
3. Store at room temperature in a dark location
4. Shake the bag to break up and distribute colonized grain as it grows
5. Use the fully colonized grain to spawn to substrate

💯 The That Mushroom Guarantee

If something arrives damaged or contaminated, we'll make it right. Free shipping on orders over $150.