Apart from fast cycles, the finished PE bags have a smooth surface unlike PP spawn bags are often dented by protrusion of grain during autoclaving. The mixed, and spawned substrate is filled into the PE bags and sealed to incubate. This is done by sterilizing the grain in jacketed mixers which heat and cool in fast cycles and grain introduction into the already sterilized and cooled by proprietary methods and then mixed.
Large spawn producers often use bulk sterilization of grain spawn. PE filtered bags are often used by large spawn producers in sizes of 35 by 60 cms. It is noted here that if PP is irradiated, PP disintegrates. Because these bags are not autoclavable, sterilization is by irradiation. By reducing oxidation, PP film retains its original properties and less hydro carbon gas is given off.īreathable Polyethylene bags with filtersīreathable PE bags with filters are much used in spawn production. Some bag fabricators use a special resin developed for hospital waste, this resin increases sealing temperature and reduce clarity, thus not a desirable bag for spawn production. It is also important to have a clear bag to observe any instance of contamination. Thus modified, bags will less likely have holes, and sealing temperature is widened. With PP resin, different proprietary raw material mix is used to modify PP to reduce oxidation and add to the PP resin a modifier to make the final autoclaved bag retain impact strength, or more stretch. By using PP bags and filters, substrate is autoclaved in these bags, and because these bags are of higher cost and more spawn is produced per bag, a more reliable bag must be fabricated. Pore size remain at 0.2 or lower, but the efficiency of the filter (larger number of pores per unit area) allow higher gas exchange. Unicorn type OB, and Santomi Plabag uses a PP non woven filter, and Van Leer has a similar filter as Santomi. Shiitake and pleurotus and most specialty mushrooms prefer a higher gas exchange filter. Unicorn type M filter and Celgard are examples of this filter. The filter are low gas transmission filters that retain CO2. Larger bags with a 20 by 12 cm foot print and 50 cm high are also commonly used.įor Agaricus spawn, grain spawn, filters of the PP non woven with PP membrane are used. Small bags of 10 by 8 by 30 cm gusseted with a filter 10 cm down from top are common. In farms where spawn is produced for farm use, a stand up bag is generally used. Breathable Polypropylene bags with filtersīreathable polypropylene bags with different filter types are widely used for spawn production. Simply fill the remaining airspace with a towel so that you can reach desired temps.Breathable mushroom bags produced by Unicorn are widely used in mushroom and spawn production around the world. Lower temps or mostly empty chamber may require some sort of insulation in or around chamber.
* Easily reaches temps of 78☏-82☏ when placed in a climate controlled room of 65☏+ and chamber is full with substrate jars/bags. Custom cut internal grid rack to allow even air flow around entire jars.19 Quart Sealed Mushroom Incubation Chamber.99.9% of the time, it will be the one pictured. Controller will work and look nearly identical to the one pictured. Psilly Note: Heat Controller brand may very depending on availability from our distributors. Colonizing bulk substrates? No problem, simply set your pan with up to 10 pounds of substrate into the chamber. This 19 quart chamber can hold up to 11x – 1 quart Wide Mouth Ball canning Jars. This chamber features a custom cut grill to sit in the bottom of your chamber to keep your jars, or bags off the heat mat so that the warm air can circulate around all the jars or bags. Our MycoBROODER mushroom incubation chamber can easily* get to temperatures of 78☏ – 82☏, perfect to colonize your PF Tek, or Grain Spawn jars or bags. Our mushroom incubator is fitted with an internal heat mat and heat mat controller. Introducing our MycoBROODER Mushroom Incubator, a 19 Quart incubation chamber with a gasket lid and automatic heating control. Description MycoBROODER Mushroom Incubator v1.0