What should I put in my shotgun fruiting chamber?

A shotgun fruiting chamber is nothing more than a good sized clear tote, covered in holes, and filled with a few inches of wet perlite in the bottom. The holes allow for fresh air and gas exchange, while the perlite serves as a way to maintain humidity.
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How do you use a shotgun fruiting chamber?

  1. Mark Holes. Mark the box at 1 inch (5 cm) intervals on all sides of the crate, including the base.
  2. Drill Holes. Drill holes. Apply gentle pressure taking care not to crack the plastic. ...
  3. Add Perlite. Soak and drain perlite. ...
  4. Install Grow Kits. Fruiting blocks can now be placed inside the shotgun fruiting chamber.
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How do you use perlite in the fruiting chamber?

Pour 4-8 dry quarts (4.4 to 8.8 liters) of perlite into the bottom of the container and add water until it is absorbed and the perlite is wet but not sodden. If you add too much water, drain the perlite so it is barely dripping. Aim on having 2-3 inches (5-7.6 cm.) of this wet perlite at the bottom of the container.
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How do I keep the humidity up in my fruiting chamber?

Alternatively, many cultivators will construct a fruiting chamber using a plastic crate or bag which has air holes for fresh air exchange which is crucial to the growth of healthy mushrooms. After spraying the interior sides of the crate the attached water droplets will slowly evaporate which will increase humidity.
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What triggers mycelium to fruit?

To grow the fungus must take in food and water from its surroundings through the fine hyphal threads. Under certain conditions such as changes in temperature, light intensity or some other environmental factor, the mycelium can develop into a fruit body and will make and release fungal spores.
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Mushroom Mike's *official* Shotgun Fruiting Chamber Guide



Should you mist during fruiting?

Misting is commonly used in order to replenish humidity after fanning for fresh air exchange or to replenish the moisture in casing layers. Mycelium and fruit bodies should never be directly sprayed with water.
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How do you speed up mushroom fruiting?

To prompt the mushrooms to develop properly, lower the humidity a bit and retain lower carbon dioxide levels and moderate light. If you want mushrooms fast, raise the temperature, or just leave the temperature where it's at and wait a few more days.
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Can a mushroom fruiting chamber be too humid?

If your chamber isn't properly sealed it can be difficult to keep it humid enough. Too much or too little humidity – If it's too dry, mushrooms won't grow. If it's too wet, you'll run into issues with mold and contaminants.
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What temperature should fruit Cubensis be?

Cubensis are extremely resilient to various temperatures when they are in their fruiting stage, but like many other species, will produce higher quality, denser fruit bodies when lower temperature is maintained. Many have found that that the ideal fruiting temperature is between 68 and 72°F (20 - 22,2 °C).
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What humidity is best for mycelium?

The ideal humidity for mycelium growth is between 85% and 95%. If the humidity is too low, the mycelium will not grow properly and may die. If the humidity is too high, the mycelium will grow too quickly and may not form properly.
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Does perlite help humidity?

Although perlite doesn't hold onto water as long as vermiculite, it boosts the humidity as it releases the water. Many plants thrive in high humidity, so if that's a concern in your garden, perlite is right for you.
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Can you reuse perlite?

Lightweight, sterile, and easy to use, perlite is popular with greenhouse growers. But because salt and pathogen buildup can occur when perlite is reused, it must be replaced every year or two to minimize the risk of crop failure.
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Should I put perlite in my Monotub?

It's really simple, and is essentially a monotub filled with perlite. Putting one together is easy, if you have an old monotub already you just need to buy some perlite and you're good to go!
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Can you use vermiculite in a fruiting chamber?

After removing the cake from the bag, simply roll the cake in dry vermiculite until completely covered. When you put the cake in the fruiting chamber, spray it with water to moisten the vermiculite. This will help the cake fruit quicker and absorb water from the vermiculite.
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When should I move mycelium to fruiting chamber?

Once a cake is completely covered in white mycelium, wait at least 2-3 more days before taking the cake out of the jar. When you are ready, and in a fairly clean room, begin transferring the cakes from their jars into their fruiting chamber (described in the next step).
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How hot is too hot for mycelium?

Growing mycelium should be kept in an ideal temperature range. For example, P. cubensis colonizes most rapidly between 75-80°F (24-27°C). Temperatures higher than this range may kill the mycelium and encourage growth of contaminants, and temperatures lower than this range may slow down colonization.
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What temperature does mycelium grow best?

Mycelium grew best during spawn-running when the temperature was kept at 75° F. (23·9° C.) During pre-cropping a temperature of 65° F.
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How long does it take from primordia to fruit?

usually after full colonization you tend to see growth 2-4 days later. the longer the are invitro the better, but i wanted to point this out, if i let them stay in the jars an extra 3days they still seem to take 1-2 days for the primordia to really get going.
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How do you maximize the yield of a mushroom?

Supplementation

Supplementation is the process of adding a nitrogen rich nutrient to the mushroom substrate in order to increase the potential yield. This works by providing the mycelium with a larger nutritional base in which to support stronger mycelium and produce larger, healthier fruits.
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How do you keep a mushroom substrate moist?

Water in the Substrate

Of course, humidity needs to be added to the air so that the substrate doesn't dry out, but all of the water that mushrooms require to grow is added to the substrate before inoculation.
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What stimulates mushroom growth?

High-voltage electrical stimulation is effective for promotion of fruit-body development in mushroom cultivation. The high voltage applying to cultivation bed of mushroom generates intense electric field inside the bed substrate. The intense electric field accelerates the hypha move owing to the electrostatic force.
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What helps mycelium growth?

How to Help Mycelium Grow in Your Garden
  • Buy a plug spawn cultivation for logs or stumps. ...
  • Build a bed by layering wet cardboard, spawn, chips, and spawn about 3 inches deep. ...
  • Woodchips & straw work as a great substrate for growing mycelium. ...
  • Transplant native spawn from a local forest.
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Why is my mycelium not fruiting?

Not Enough Moisture

Mycelium, the underground vegetative growth of a fungus, needs a moist environment to thrive and produce mushrooms. Mushrooms themselves are mainly water, so if you let the mycelium dry out or the humidity level get too low then nothing will happen.
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