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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.  

 

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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.  

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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.  

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Follow the Bulk Casing Guide on adding your colonized grain and Casing Mix.  

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Run the Air Pump system  for 1 hour on 4 times per day during this stage.  

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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.  

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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.  

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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 

support@midwestgrowkits.com 

or call us (800) 921-4717 Mon-Fri 11am-5PM Central Time.  

Ultimate Kit Bulk Grow Pinning!  

Ultimate Kit with Jars Week 6!  

Summary of Contents for Ultimate Kit

Page 1: ...because it allows growing in any environment even the dirtiest attic closet or basement while providing optimal air exchange This kit can be used for both incubation period and for fruiting Follow these simple setup instructions Items not included Extension cord and water Start by placing your fully submersible aquarium heater on the bottom and use the suction cups to secure it The aquari um heate...

Page 2: ...t just simply turn back the knob to lower the temperature Once you have achieved your de sired incubation temperature the heater will maintain that and you are ready to add your inoculated jars to the tub www midwestgrowkits com 800 921 4717 Once you get the temp set correctly and steady add your inoculated jars and close the lid That s all that is needed for the first 3 4 weeks or until fully col...

Page 3: ... To speed this up you can flip the jar upside down and gently tap the bottom of the jar to dislodge the cake from the glass Leave the jar upside down until it finishes colonizing These next steps should be done after the jars are 100 colonized and are ready to start the fruiting process Connect the hose to the air pump Make sure the side with the white HEPA filter particle inside the hose is close...

Page 4: ...d Peroxide breaks down into water oxygen after 48 hours so it is very safe to use This can also be added to the outer tub as well to keep the water from becoming stagnate Do not use any other chemicals as they may corrode the heater Tip During this stage do not leave your Thermometer Humidity Gauge in the fruiting chamber for extended periods of time The high humidity can cause failure over time W...

Page 5: ... bottom of the jars to dislodge any stubborn cakes Here is an example of jars on top of the perlite The top row have been dunked and rolled See Mushroom Grow Guide The bottom row have been double end cased which is adding moist vermiculite to just the top and bottom The two jars on the right side have been dunked but no extra vermiculite added In our experi ence there isn t one particular method t...

Page 6: ...grees 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 blan...

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