Air

It takes a while slowly decreasing substrate temperature from 55 to 50 ° C, continuous and adequate supply of fresh air. Substrate temperature and oxygen supply during conditioning determine the development and the livelihoods of certain groups of microorganisms . At higher temperatures (55 - 65 ° With) the most actively developingthermophilic bacteria, then at lower temperatures are replaced by actinomycetes and several groups of thermophilic fungi . However the dominant group during the conditioning of the substrate - actinomycetes. Their activity depends not only on the temperature but also on the presence of carbohydrate in the substrate .

In the heat treatment of the substrate on racks in containers in a layer ventilation substrate occurs due to free convection which depends on the differencesubstrate temperature and the ambient air . found that when a substrate on racks pasteurization temperature difference of the substrate and the ambient temperature should be 10 - 15, and the container - 20 ° C .

After completion of the conditioning period, the substrate is cooled by forced ventilation of 25 - 27 ° C for 18 - 24 hours, then proceed to sowing (landing) mycelia .