XL All-in-One Mushroom Grow Bag 6 lb | 5-Grain + Substrate – Midwest Grow Kits
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XL All-in-One Mushroom Grow Bag (6 lbs) for Manure Loving Mushrooms

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$2899 $3499
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Our XL 6 lb All-in-One grow bag holds 2 lbs of sterilized 5-grain spawn and 4 lbs of bulk substrate behind a 0.22 micron filter patch. Inject spores or liquid culture, break and shake, and fruit right in the bag.

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Description

The XL 6 lb All-in-One mushroom grow bag gives you 2 lbs of sterilized 5-grain spawn over 4 lbs of Select Bulk Substrate in one self-supporting bag with a 0.22 micron filter patch and a self-healing injection port — the same inject-incubate-fruit workflow as our 4 lb bag, with more material for bigger flushes.

XL 6 lb All-in-One mushroom grow bag beside a fruiting XL bag with a dense mushroom canopy on its box
50% more bag. The same easy steps.

2 lbs of sterilized 5-grain spawn over 4 lbs of bulk substrate. Inject, incubate, break and shake, and fruit in the bag.

  • 2 lbs 5-grain spawn
  • 4 lbs bulk substrate
  • 0.22 micron filter
  • Sterilized in-house
  • 6 lbsTotal bag
  • 2 lbs5-grain spawn
  • 4 lbsBulk substrate
  • 0.22 µmFilter patch
  • 10–14 daysFull colonization

Why growers pick the XL All-in-One

XL 6 lb All-in-One grow bag standing next to the smaller 4 lb All-in-One bag for size comparison
More material, same workflow

6 lbs versus 4 lbs, with the same inject, incubate, break-and-shake and fruit steps.

Dense flush of small and medium mushrooms covering the top of a colonized XL All-in-One grow bag
Built for bigger flushes

2 lbs of 5-grain spawn and 4 lbs of substrate give the colonized cake more to fruit from.

Colonized and fruiting All-in-One grow bags on the shelves of a small indoor mini greenhouse with a humidifier
Fits a shelf or small tent

Bigger runs without the floor space a monotub takes. Fruit it on a shelf or in a small grow tent.

How to grow in the bag

Four steps from sealed bag to harvest. All you add is spores or liquid culture.

Gloved hand injecting a syringe into the self-healing injection port of an All-in-One grow bag 1Inoculate

Shake the syringe, wipe the port with alcohol, and inject 5–7cc of spores or about 10cc of liquid culture into the grain.

White mycelium spreading through the grain layer of an All-in-One grow bag on a warm shelf 2Incubate

Keep the sealed bag around 72–76°F until the grain is about 75% colonized.

Hands breaking and mixing colonized grain through the substrate of a sealed All-in-One grow bag 3Break and shake

Mix the colonized grain through the substrate, then let the bag finish colonizing, typically 10–14 days.

Mushrooms fruiting inside a clipped All-in-One grow bag next to a spray bottle for misting 4Fruit

Once fully colonized, open the top, give it indirect light and fresh air, and mist the inside walls.

Full walkthrough: the All-in-One Grow Bag Guide covers inoculation, colonization, break-and-shake timing, fruiting conditions, harvesting, additional flushes and troubleshooting with real grow photos. Not sure how many syringes to buy? Use our syringe calculator.

From sealed bag to harvest

Fruiting XL All-in-One grow bag with a loose cluster of curving mushrooms sitting on top of the XL Grow Bag box A fruiting XL bag on its box
Fruit in the bag or move it to a tub

The XL is for growers who want a bigger harvest without moving to a monotub yet. It fits the same small footprint, and like everything we bag it is pressure-sterilized in our own autoclave and shipped fresh. When it is fully colonized, fruit it in the bag or move the cake into a monotub for more surface area.

  • 2 lbs 5-grain spawn blend
  • 4 lbs Select Bulk Substrate
  • 0.22 micron filter + self-healing port
What you add

Spores or liquid culture, nothing else: 5–7cc of spores or about 10cc of liquid culture.

Liquid culture usually colonizes faster than spores.

See it grow

This XL bag was fruited in our Ecosphere grow tent with the top half of the bag removed.

How All-in-One bags work


Specifications

Specification Detail
Total weight 6 lbs
Grain 2 lbs 5-grain spawn blend, sterilized
Substrate 4 lbs Select Bulk Substrate, sterilized
Bag Self-supporting filter grow bag
Filter patch 0.22 micron
Injection port Self-healing
Sterilization Pressure-sterilized in-house
Inoculation 5–7cc spores or about 10cc liquid culture
Incubation 72–76°F
Full colonization Typically 10–14 days after break and shake

Pick your All-in-One setup

XL 6 lb Bag 4 lb Bag Starter Kit Wood Lover's
Use it for Bigger flushes, same steps Your first bulk grow Bag and tub in one box Wood-loving gourmet species
Contents 2 lbs 5-grain + 4 lbs substrate 1.75 lbs grain + 2.25 lbs CVG 4 lb bag, 28Q tub, 2 lbs CVG 5-grain over hardwood substrate
Fruit it In the bag In the bag In a 28Q monotub In the bag
You supply Spores or liquid culture Spores or liquid culture Spores or liquid culture Nothing: LC syringe included

Faster startsLiquid culture usually colonizes faster than spores. Our QuickCulture Mini liquid culture jars turn a spore syringe into vigorous liquid culture before you inoculate your bag. Shopping for genetics? Browse our liquid culture syringes or spores from Spore Genetics.


Common questions

How is the XL different from the 4 lb All-in-One?

The XL holds 6 lbs instead of 4 — 2 lbs of 5-grain spawn and 4 lbs of Select Bulk Substrate — so there is more material for larger flushes. The steps are the same.

How much spore solution or liquid culture should I use?

Inject 5–7cc of spores or about 10cc of liquid culture into the grain section through the self-healing port. Shake the syringe well first.

How long does the XL take to colonize?

Break and shake at about 75% grain colonization; the bag typically finishes colonizing 10–14 days later at 72–76°F. Liquid culture is usually faster than spores.

Do I open the bag while it colonizes?

No. Keep the bag sealed until it is fully colonized. The 0.22 micron filter patch lets the bag breathe while keeping contaminants out. Open the top only when you move to fruiting.

Can I get more than one flush?

Yes. After you harvest, mist the surface or give it a light soak to rehydrate, then keep the same fruiting conditions for the next flush. Later flushes are usually smaller than the first.

Can I fruit it in a monotub instead?

Yes. Many growers fruit right in the bag, but you can move a fully colonized cake into a monotub for more surface area.

Is this the same as the Wood Lover's XL kit?

No. This bag is our standard XL All-in-One. The Wood Lover's XL kit uses a hardwood-based substrate for wood-loving gourmet species and includes a liquid culture syringe.