Sterilized All-in-One Mushroom Grow Bag – 3 lb Substrate with Injection Port

Sterilized All-in-One Mushroom Grow Bag – 3 lbs

Need an all-in-one mushroom grow bag that lets you skip the pressure cooker? This 3 lb (≈ 3 quarts) bag comes fully sterilized, layered with grain and nutrient-rich bulk substrate, hydrated to the ideal moisture level, and sealed with a self-healing injection port. Simply add 2–5 cc of your favorite gourmet or medicinal mushroom culture and watch the magic happen.

Why Choose Our Ready-to-Use Bag?

• 🍄 True “set-and-forget” solution – no mixing or sterilizing gear
• 🛡️ Pressure-sterilized & sealed – minimizes contamination risk
• ⚖️ Balanced layers – whole oat grain + coco coir, vermiculite & hardwood fines
• 🕳️ Built-in self-healing port – clean liquid-culture or spore-syringe injection
• 📦 Ships fast from the USA – fresh bags prepared in small batches

How to Use

• Inoculate: Wipe the port with alcohol, inject 2–5 cc spores/liquid culture.
• Colonize: Keep at 70-77 °F (21-25 °C) in the dark for 2–4 weeks.
• Break & Shake (optional): At ~60 % colonization, gently mix to speed growth.
• Fruit: Cut an X in the bag or transfer to a fruiting chamber once fully white.
• Note: Bag contains substrate only – culture/spores not included.

FAQ

Does this bag work for Oyster, Shiitake, Lion’s Mane & more?

Yes. The nutrient profile supports most gourmet species; simply use the correct culture.

How long does a sterilized bag stay viable?

Up to 3 months in a cool, dark place. For best results, inoculate within 30 days of arrival.

Is a fruiting chamber required?

The bag can be fruited in-bag by cutting slits; however, a monotub or tent improves air exchange and yield.

Where to buy sterilized mushroom grow bags for sale?

At Seeds World we offer small-batch, freshly sterilized grow bags with rapid U.S. shipping and quantity discounts – perfect for hobbyists and educators alike.