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NOTE: Liquid culture works better than spores. Always use liquid culture instead of spores, if possible. We recommend myyco.com. Use the code MAGICBAG for 5% off your order.
We require photos in order to process replacements as we’ve found customers may accidentally throw bags away that were perfectly fine. So, if you’re having any issues with your grow, or think you might have contamination, please send us detailed photos. This will expedite the support process and allow us to troubleshoot your grow or send a new bag if needed. But, before doing that, please utilize our Grow Guide to try to self-troubleshoot your grow. We’re always adding resources there to help our customers troubleshoot common issues. 🙂
This is a ready-to-use 5-pound bag of CVG substrate, made from coco coir, vermiculite, and gypsum, hydrated to proper field capacity and prepared specifically for dung-loving mushrooms that thrive on CVG-based substrates.
This substrate is designed to be mixed directly with fully colonized grain spawn in monotubs or shoebox tubs. No additional preparation is needed.
This substrate is ready to use straight out of the bag once your grain spawn is fully colonized. Do not open the substrate bag until you are ready to mix it with your spawn
Before you begin you will need some fully colonized grain spawn (we recommend Magic Bag’s rye or drippy corn spawn bags), (those words should link to respective product pages) one or more 5-pound CVG substrate bags, a clean monotub or shoebox tub, some 70% isopropyl alcohol or hydrogen peroxide, paper towels, gloves and a clean workspace
Prepare a clean workspace. Make sure you are clean (we recommend showering) and wear clean clothes.
Consider wearing a mask. Clean your workspace by wiping it down with 70% isopropyl alcohol and put on gloves.
Spray the inside of your monotub with isopropyl alcohol, 3% hydrogen peroxide, or both, and allow it to air dry briefly. Cleanliness at this stage helps reduce the risk of contamination later.
Open your CVG substrate bag and place the entire contents into your monotub.
Then, with your grain spawn bag still closed, break up your fully colonized grain spawn into individual pieces. The goal is to separate the grains as much as possible so they can be evenly distributed throughout the substrate.
Add the broken-up grain spawn to the substrate in the monotub and mix thoroughly. Make sure the grain is evenly distributed from top to bottom and corner to corner of the tub. Take your time, good mixing leads to even colonization and better results.
Once mixed, level the surface so it is flat and even. Gently press down to compact the mixture slightly, but do not apply excessive pressure.
For a 16-quart shoebox or “dubtub”:
One 3-pound grain spawn bag and one 5-pound bag of CVG substrate. The depth in the tub is about 2.5 – 3 inches.
For a bigger 55 – 60 quart monotub:
Two 3-pound grain spawn bags and two 5-pound CVG substrate bags. The depth in the tub is about 3 – 4 inches.
Once mixed, close the lid on your tub. If your monotub has fresh air exchange holes, tape them closed with non-porous tape during the colonization phase.
Place the tub in a warm, dark location and avoid opening it for 10 – 14 days. Ideal colonization temperatures are 72 – 77°F.
When the surface is 95 – 99% covered in white mycelium, the substrate is fully colonized and ready for fruiting conditions.
Move your monotub into a room with light. This can be indirect natural light from a nearby window or normal room lighting. Maintain a temperature range of 72 – 77°F.
If your monotub has fresh air exchange holes, remove the non-porous tape and replace it with micropore filters, polyfill, or micropore tape to allow airflow.
Open the lid and fan fresh air into the tub using a book or a handheld fan for about 60 seconds, then replace the lid. Fan the tub two times per day.
Monitor the surface of the substrate closely. You want to see fine beads of condensation covering the mycelium surface. If you live in a dry climate or notice the surface drying out, gently mist the tub with clean water in a spray bottle. Avoid over-misting. There should be no pooling water on the surface, just lots of tiny condensation beads of water spread evenly over the mycelium surface. In many cases, the tub will maintain proper moisture on its own and require little to no misting.
After initiating fruiting conditions, it can take a minimum of two weeks for mushrooms to begin forming. Be patient and avoid over-handling the tub. Continue providing fresh air daily and maintaining surface moisture as needed.
Keep the temperature between 72 – 77°F throughout the day and the night to get the best results.
With stable conditions and patience, your mushrooms will begin to grow. Pick them from the base of the stem when they look like they’re ready–right before the base of the caps break from the stems. Depending on the strain, you should get several flushes. Keep picking them over the next few weeks.
Magic Bag urges customers to follow all their local laws regarding the cultivation of edible and medicinal mushrooms. Certain mushroom strains offer unique experiences. These experiences should be used as tools for healing and growth, and treated with the utmost respect and preparation. Integration therapists and guides should be utilized.
