Unicorn Bags – Mushroom Grow Bags with Filter Patch

(1 customer review)


Unicorn Bags – Spawn/Fruiting/Substrate Bags

  • Genuine Unicorn Mushroom Grow Bags
  • Highest quality mushroom bags on the market
  • Autoclavable
  • Gas exchange filter
  • Many different sizes are available


Genuine Unicorn Mushroom Grow Bags with Filter Patch

Unicorn Manufacturing is known to produce the best mushroom grow bags available on the market today. Available in many sizes, these grow bags feature gusseted construction, which allows for more uniform quality materials, Unicorn Bags has set the bar for quality products and innovation in the mycology industry.

Available Sizes:

  • Model 4A – Size: 4″x 3″x18″
  • Model 10T – 5″X4″X18″ – 0.2-micron filter patch
  • Model 10B – 5″X4″X18″ – 5-micron filter patch
  • Model 10TINJ – 5″X4″X18″ – 0.2-micron filter patch with injection port
  • Model 10BINJ – 5″X4″X18″ – 5-micron filter patch with injection port
  • Model 10TINJ Biodegradable – 5″X4″X18″ – 0.2-micron filter patch with injection port
  • Model 3T – 8″X5″X19″ – 0.2-micron filter patch
  • Model 14A – 8″X5″X19″ – 0.5-micron filter patch
  • Model XLS-A – 10″X5″X24″ – 0.5-micron filter patch
Frequently Asked Questions:

Q: How do you use mushroom grow bags?

A: Remove the bag from the packaging and open it completely, laying the bottom of the bag flat. Next, you will fill the bag with the prepared spawn or substrate of your choice. When filling the bag make sure to leave at least 2 inches of space between the bottom of the filter and the top of the grain. Fold the gusseted sides inward, bringing the front and back of the bag together. Wrap the top of the bag around the substrate and use tape to secure it. Place the grain spawn bag in a pressure cooker for a minimum of 90 minutes to sterilize. Allow the bag to cool for a few hours before removing the bag. Once cool, remove the grain bag and gently remove the tape making sure not to open the bag. Take the top of the bag and seal using an impulse sealer, a heat sealer, or a bag clamp.

Q: How do you inoculate a spore syringe in injection port bags?

A: Before inoculating your grain spawn bag with spores or liquid culture you will need to break up the sterilized grain and pull some air into the bag through the filter. To do this, lay your grain bag on its side and gently massage it to break up the grain. Next, grab the gusseted sides and pull outward. This will allow a little bit of air to seep in through the gas exchange filter. Stand the bag upright and then maneuver any stray grains that may be stuck on the top of the bag back to join the others. Wipe down your work area all utensils and the injection port using a disinfectant such as 97%+ rubbing alcohol. Remove the cap from your needle and flame sterilize the needle until red hot. Allow to cool, wipe off the needle with your disinfectant and insert the needle in the grain bag through the injection port. Squeeze your desired quantity of culture into the bag, remove the needle, and replace the needle cap. Do a final massage of the grain working the culture around in the bag. Set aside for incubation.

Additional information


4T, 10T, 10B, 10TINJ, 10BINJ, 10TINJ-BIO, 3T, 14A, XLS-A


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1 review for Unicorn Bags – Mushroom Grow Bags with Filter Patch

  1. Ryder (verified owner)

    The product is firmly packed.

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