Oxygen: ideal oxygen. The yeast requires enough oxygen throughout the breeding period, and the oxygen needs to be equally distributed in the wort, and also the wort ought to not be subjected to oxygen during the fermentation duration.
Temperature: appropriate temperature, according to various ranges of yeast, the appropriate temperature is various. Usually speaking, the appropriate temperature of the reduced fermentation yeast is less than the appropriate temperature of the top fermentation yeast. When heating or air conditioning, it must be carried out gradually and also slowly, otherwise it will certainly impact the growth of yeast.
Anxiety: Steady stress, abrupt adjustments in stress that are too big can create cell wall surfaces to rupture as well as boost yeast mortality.
Nutrients: Amino acid content should be sufficient
Clean and sterile environment to prevent contamination of various germs.
Micronutrient: Insufficient zinc ion web content, sluggish yeast growth, slow fermentation speed, high zinc ion content, fast yeast metabolism, easy aging as well as fatality.
The number of inoculated yeast: a handful of shots will enhance the worth of yeast for a long time, which raises the danger of contamination; if the number of shots is huge, there will be less new yeast and elder and also senescent cells, which will affect the final healing quality.
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