4 lbs All in One Mushroom Grow Bags | 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.


Description

The All-in-One Mushroom Grow Bag (4 lb) is a simple, beginner-friendly way to grow mushrooms at home with minimal setup. Just inject your favorite spores or liquid culture, incubate, and fruit—no monotub or separate substrate mixing required.

Each bag contains a pre-sterilized, perfectly portioned blend of grain spawn and bulk substrate inside a self-supporting filter bag with a self-healing injection port. We pressure-sterilize these bags in-house and ship fresh so you can start with clean materials from day one.

Why Growers Choose This Bag

  • True All-in-One Convenience – Grain and substrate are already layered and ready to go.
  • Beginner-Friendly – No special tools or complex equipment required.
  • Space-Saving – Perfect for shelves, closets, or small grow areas.
  • Clean, Sterile Start – Pressure sterilized in our autoclave for consistent results.
  • High Airflow Filter Patch – Self-supporting bag with .22 micron filter patch and self-healing injection port.

What’s Included

  • Total Weight: 4 lb all-in-one grow bag
  • Grain Blend: 1.75 lb Milo, Millet & Rye Berries
  • Substrate Blend: 2.25 lb Coco Coir & Vermiculite
  • Bag Type: Self-supporting filter bag with .22 micron filter patch and self-healing injection port
  • Instructions: Full-color instruction guide with step-by-step photos

How to Use

  1. Inoculate through the self-healing port: inject 4–5cc spores or 5–10cc liquid culture into the grain section.
  2. Incubate in a warm area around 72–76°F until the grain is 50–75% colonized.
  3. Break & Shake to redistribute mycelium, then allow the bag to fully colonize (typically 10–14 days).
  4. Fruit by providing indirect light and fresh air. When ready, open the top and mist the inside walls as needed.
  5. Harvest and enjoy. Many growers achieve multiple flushes with proper care.

Ideal For

  • First-time mushroom growers
  • Small spaces where monotubs aren’t practical
  • Testing new cultures before scaling up
  • Growers who want a simple “inject and grow” workflow

Want higher yields? Upgrade to a monotub grow kit to scale your grow and increase production per run.

Here’s how our 4 lb and 6 lb All-in-One Bags work:

Video Overview


Boost Your Success With QuickCulture Jars

For faster starts and cleaner inoculations, pair this grow bag with our QuickCulture Mini Spore Germinating Liquid Culture Jars (3-Pack). These compact jars help germinate spores into vigorous liquid culture—ideal for jumpstarting your All-in-One Grow Bag with consistent results.

Shop QuickCulture Mini Liquid Culture Jars