Looking to grow mushrooms with real momentum?

Popcorn’s your best mate. Our Sterile Popcorn Grain is prepped, sterilised, and packed in Unicorn bags – the highest quality spawn bags in the game. Featuring a breathable filter patch and self-healing injection port, they’re built for clean, easy inoculation.

Popcorn isn’t just a novelty — it’s genuinely one of the fastest-colonising grain types available.

The large, rounded kernels offer excellent surface area, while the grain itself is stacked with nutrients like iron, magnesium, potassium, and B3 to fuel mycelial growth.

Each batch is soaked, cooked, and perfectly hydrated, then sterilised in our autoclave for 2.5 hours. We take our prep seriously — no shortcuts, no contamination, just clean popcorn grain ready to grow.

Why You’ll Love It

✅ Great for gourmet, functional, or healing mushrooms
✅ Premium Unicorn bags for durability and sterility
✅ Nutrient-dense grain for strong, healthy growth
✅ Ultra-fast colonisation = shorter spawn times

Storage & Best Practices

🍄 Don’t block the filter patch — your mycelium needs to breathe
🍄 Inoculate using a still air box or flow hood for best results
🍄 Shelf-stable for up to 6 weeks
🍄 Store upright, somewhere cool, dark, and dry
🍄 Avoid storing it in the fridge — a cupboard will do