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How to convert your kit to Bulk Growing!
Bulk growing, or sometimes called mono-tub is another style of growing. It involves colonizing a whole grain substrate like our
spawn bags or 5-grain Jars and breaking up the substrate and mixing it with a casing mix to create one giant bed of mycelium.
This method has become more popular in recent years. All of our growing kits can be easily converted to this style of growing.
Please start by reading the Bulk Growing Guide & Spawn Bag Guide in our Guides Library. See the link on Page 1 of this guide.
You will need either 2 Spawn bags or 3 Quick Colonizing 5grain Jars and 1 bag of the 5lb Bulk Casing Mix. Start by injecting
your spawn bags or Jars and incubating at 75-77 degrees (few degrees less than 1/2 pint Jars). Follow the Spawn Bag Guide
and allow them to become fully colonized.
Next, cut a black trash bag and line the bottom of the fruiting chamber to block
any light from entering on the bottom. See picture on the right.
Follow the Bulk Casing Guide on adding your colonized grain and Casing Mix.
Run the Air Pump system for 1 hour on 4 times per day during this stage.
Place a blanket or towel over the entire kit to keep everything in the dark for the
first 7-10 days while the mix re-colonizes.
After the mix re-colonizes and you see lots of white poking through, turn on the
lighting system and run the light for 12 hours per day.
Once you see mushroom pins, increase the air pump system to 30 mins on
and 30 mins off. Enjoy your harvests!
Need growing help? Email us at
or call us (800) 921-4717 Mon-Fri 11am-5PM Central Time.
Ultimate Kit Bulk Grow Pinning!
Ultimate Kit with Jars Week 6!
