Written Guide & Grow Tips

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Our written guide is designed to be a valuble reference tool for you

1) Select a clean room. Sanitation is not a major concern at this stage. You will do an “open-air” spawn where the colonized grain will be mixed with the substrate. The area should still be clean (a room where no mold is present, no pets, etc..)

2) Give the fruiting chamber bin a liberal wipe down with a paper towel moistened with alcohol. Allow a few minutes to dry.

3) Place a square of micropore tape over the inside and outside of each pre-drilled hole of the fruiting chamber. Polyfill Alternative: Stuff the holes with tightwads of polyfill.

4) Lining the Fruiting Chamber:

Method 1- Line the interior: Fit the bin liner into the interior of the fruiting chamber. Trim the liner so it only rises up about 4 inches on the sides of the fruiting chamber. Hint: Masking tape can be helpful to temporarily hold the liner in place.

Method 2- Line the exterior: Fit the bin liner onto the exterior of the fruiting chamber. Trim the liner so it only rises up about 4 inches on the sides of the fruiting chamber. Secure the liner to the outside of the bin with masking or duct tape.

5) Using your hands, break up the white block of colonized grain spawn in the bag. Once it is thoroughly broken up, use scissors to cut it open and dump it into the fruiting chamber.

6) Cut open the Super Shroom substrate and dump it into the fruiting chamber.

7) Using your clean hand, thoroughly mix the substrate and grain spawn. Once mixed, spread evenly throughout the fruiting chamber. The surface should be somewhat level.

8) Fasten the lid to the fruiting chamber.

9) Place the fruiting chamber in a room that receives natural lighting and is between 70-75 degrees.

General Fruiting Chamber Maintenance

After your fruiting chamber is set up, it will take 2-3 weeks to fully colonize. Monitor your tub for dryness. If you see lighter patches of substrate, lightly mist with a spray bottle of tap water until darkened. After the substrate is fully colonized, it will be important to monitor for surface moisture. There should always be very small beads of water on the surface of your substrate. If you don’t see these, mist lightly once a day until small beads of water are visible. After you mist, fan the substrate for 20-30 seconds which will initiate some evaporation, a key pinning trigger. (Note: If you are running a humidifier with the deluxe kit, you will not need to mist and fan.

Humidifier Setup (Deluxe kit only)

After you set up your fruiting chamber. It should not need any attention for at least two weeks. After this point, you should set up your humidity control kit. Set up the humidifier with the hose attachments and fit the end of the hose into the highest hole on the side of the fruiting chamber that has three holes. Remember to fill the humidifier with water. Program the timing switch to turn on for one minute each day. Plug the humidifier into the timing switch. That’s it! Set it and forget it!

Using the Heating Mat

If your room is colder than 70 degrees, you will want to employ the heating mat. Simply set up the mat on a flat surface and turn it on. Place a towel or piece of cardboard on top of the mat, then place the fruiting chamber on top. Monitor the temperature in the fruiting chamber (it should not rise above 78 degrees). If it is too hot, add more layers of cardboard until the appropriate temperature zone is reached (between 70-75 degrees).

Fruiting and Harvesting

Your fruiting chamber should begin to produce fruits 2-3 weeks after becoming fully colonized. Mushrooms will begin to pin-up and then grow quickly. You should harvest your mushrooms when the cap flutes out and the veil breaks, exposing the gills of the mushrooms. Harvest your mushrooms by twisting and pulling them from the substrate.

A flush of mushrooms includes all of the mushrooms that are produced in the same general wave. Once your first flush is harvested, the substrate can be “reset” for additional flushes. Gently pour tap water on top of the substrate until a small puddles form. Now pour water down the sides of the substrate to a depth of about ½ inch. After 24 hours, dump off the excess water and resume regular misting and fanning.

Drying and Storing Your Mushrooms

Use the included dehydration kit to effectively dry out your mushrooms. Remove everything from the plastic container, add the desiccant beads until they form a layer about a ¼ inch thick. Lay the screen on top of the beads, then add your mushrooms on top of the screen. Drying may take a few days. Once dry to the touch, store your mushrooms in the included mason jar. Note: Storing mushrooms in the refrigerator will extend their life.

– Humidifier tek
– Heating Mat tek
– Maintenance tek
– Harvesting tek Resetting the substrate
– Dehydrating tek
– Storage tek

For Deluxe Kit Owners: After two

On the side of the chamber with three holes, only put tape over two of them. The remaining hole will be for the humidifier hose.

Contamination: the enemy, how to minimize, what to look for.


Supplies Needed:
-syringe of spores or liquid culture
-cigarette lighter or a butane torch
-sterilized bag of grain spawn
-70% alcohol in a spray bottle
-exam gloves
-a roll of paper towels (preferably on a holder)
-surgeon’s mask


Setting up the Growing Chamber

Supplies Needed:
– colonized bag of Mini Boomer grain spawn
– Fruiting Chamber Bin with Predrilled Holes
– 1 bag of Super Shroom substrate
– Bin Liner
– alcohol spray bottle and paper towels
– Humidifier and Attachments
– Clean scissors
– 7-Day Switch Timer
– Micropore Tape or Polyfill