All-in-One Mushroom Grow Bag 4 lb | Sterile Grow Bag | Midwest Grow Kits

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All-in-One Mushroom Grow Bag (4 lbs) for Manure Loving Mushrooms

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$2299 $2599
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All-in-one 4 lb grow bag with sterilized grain and substrate. Just inject spores or liquid culture and harvest—perfect for space-limited grows.

🔥 1355 purchased in the last 30 days
⭐ 13,000+ units sold

Description

All-in-One Mushroom Grow Bag (4 lb)

The All-in-One Mushroom Grow Bag (4 lb) is a simple, beginner-friendly all-in-one mushroom grow bag designed for easy at-home growing. This sterile grow bag combines grain spawn and bulk substrate in one ready-to-inoculate system, allowing you to inject spores or liquid culture, incubate, and fruit with minimal equipment.

Each bag includes a pre-sterilized blend of grain spawn and bulk substrate inside a self-supporting filter bag with a self-healing injection port. It’s a great option for growers who want a straightforward fruit-in-the-bag method without needing a full monotub setup. If you later want to scale up, you can also explore our bulk substrate collection and larger fruiting systems.

Why choose the 4 lb bag? It’s one of the easiest ways to start growing mushrooms with minimal space, minimal equipment, and a clean, low-maintenance workflow.

Why Growers Choose This All-in-One Mushroom Grow Bag

  • All-in-One – Grain + substrate ready to go in one sterile bag
  • Beginner-Friendly – Simple inoculate, incubate, and fruit workflow
  • Compact – Perfect for small spaces and easy storage
  • Sterile – Autoclaved in-house for consistency and reliability
  • Fruit-in-the-Bag – Great for growers who want a simple setup
  • Filter Patch – .22 micron filter + self-healing injection port

What’s Included

  • Total: 4 lb all-in-one grow bag
  • Grain: 1.75 lb Milo, Millet & Rye
  • Substrate: 2.25 lb Coir & Vermiculite
  • Bag: Self-supporting sterile grow bag with filter + injection port
  • Guide: Step-by-step instructions included

How to Use This 4 lb All-in-One Grow Bag

  1. Inject 4–5cc of spores or 5–10cc of liquid culture through the injection port
  2. Incubate at 72–76°F until healthy mycelium growth is established
  3. Break & shake at around 50–75% colonization when appropriate
  4. Introduce light and fresh air for fruiting conditions
  5. Harvest directly from the bag, or transfer to a larger setup if desired

Which Growing Method Is Right for You?

6 lb XL Bag

  • Best ForLarger flushes
  • DifficultyEasy
  • SpaceLow
  • YieldHigher

Monotub

  • Best ForScaling up
  • DifficultyBeginner & Intermediate
  • SpaceMore needed
  • YieldThe Highest

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