MyCO2 Mushroom Bag - Grow

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9.10 (in)
6.60 (in)
6.70 (in)
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MyCO2, also known as My CO2 bag, is a customer activated mushroom grow kit carbon dioxide generator, meaning the CO2 doesn’t start releasing until after it is activated by an end user! Not only does MyCO2 Grow introduce serious quantities of CO2 into your growing environment, it also grows delicious Shiitake mushrooms! (More Info on medicinal Shiitake Mushrooms)

With a revolutionary difference: patent pending Customer Activation, MyCO2 has introduced the first product of its kind with a stable 4 month shelf life. The product comes with the live mushroom spawn separated from the sterile substrate with a reusable plastic clip. This is important because Carbon Dioxide (CO2) is a byproduct of fungal decomposition. The transformation of carbon into CO2 gas happens within days of inoculation and continues until shortly after full colonization is reached. This is called the decomposition phase as the fungi is working hard decomposing the substrate, converting the carbon molecules within into carbon dioxide gas in the process. The relative aggressiveness of the species used determines how quickly this process happens. The faster it happens the higher the concentration of byproducts like CO2. That is why an aggressive species of Oyster Mushrooms is used for the Bloom box and a less aggressive Shitake Mushroom species in the Grow box so you can rest assured your plants are getting the CO2 they need, tailored to their specific state of growth.

For best results as a CO2 Bag / Carbon Dioxide generator use one MyCO2 per 4’x4′ area or one MyCO2 per light. The more you pack in an area the more CO2 you will realize. For plant safety and easy maintenance we encourage gardeners to use the box when hanging the bags above their garden, pulling the loose section of the bag out the trap door on the back of the box, suspending it above the garden with a rope ratchet connected to the box handle.


MyCo2 used with a clone dome

MyCO2 Grow pulled through the side of a clone dome!


When used in a Seedling / Clone Dome you can simply make a cut in the side of the clear plastic cover and pull the loose section of the bag through until the filter patch is within the dome, tape the loose slack to the lid and put the lid back as normal.

MyCO2 Bloom can be used together with MyCO2 Grow regardless of plant growth phase. After you’re done using the MyCO2 to enhance plant growth you can follow instructions on the side of the box to grow delicious oyster mushrooms or medicinal Shittake Mushrooms in the comfort of your kitchen.

MyCO2 is an award winning product line, recognized for its “Cradle to Grave” Sustainability, achieving a 1st place Green Festival San Francisco Brand Award in 2014. MyCO2 is USDA certified organic. The clip is reusable, the bag and the box are recyclable, the CO2 it makes is used by plants, the substrate is compostable, made from a proprietary hardwood sawdust / wood chip mix, and it grows mushrooms before composted. Grab a MyCO2 for your garden today, Your plants and the planet will thank you.

  • MyCO2 Grow – up to 180 days of CO2 making about 800 ppm in a 4×4 area
  • MyCO2 Grow = Shiitake Mushrooms (Ganoderma Lucidum)
  • USDA Certified Organic, Sustainable, Recyclable, Reusable.
  • Patent Pending Customer Activation = User Activated + Consistent results!
  • Grows Mushrooms after used for CO2
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