The technical demands of yeast activation
- Jun 30, 2018
- 197
- tiantai
The technical demands of yeast activation
1.If the yeast can be used within few days after recycling, which should be cooled immediately and stop until to 5℃, then do ventilation also to promote yeast metabolism when drive CO2.
2.If the yeast will not be used after recycling, the pressure should release slowly and storage at 2℃. Or the yeast performance will decline.
After recycled yeast storing, it should stop cooling before vaccination 4-8h. Opening circulation piping and making yeast circulate 10 min, stopping 50 min. Intermittent ventilation during circulation, do aeration for 10s and stop 120s. In this situation, it can make CO2 and alcohol volatile, improving yeast out surroundings, thus recover yeast performance gradually and into oxygen consumption condition, reproduction once yeast vaccinated.
3.After recycled yeast storing, if you use partial yeast, circulate the yeast 30min and stop min before 4 hours for vaccination, then continue cooling and add needed partial yeast to wort. The rest yeast is not suitable to store for long time, it should better vaccinate within 15h, or it will autolysis.
The advantages of yeast activation: Assure yeast quality with pressure recycle, CO2 can basic remove, yeast get further activation, take into fermentation situation before adding, increase the possibility of yeast acid washing, uniform yeast quality after activation.
After the yeast activation, it reduce the slow period after vaccination, the wort can up soon, thus it can shortage fermenting time and improve utilize rate of fermenter tank, improving production intermittently.
Edited by Derrick
Sales Manager in Tiantai Company
Email:[email protected]
1.If the yeast can be used within few days after recycling, which should be cooled immediately and stop until to 5℃, then do ventilation also to promote yeast metabolism when drive CO2.
2.If the yeast will not be used after recycling, the pressure should release slowly and storage at 2℃. Or the yeast performance will decline.
After recycled yeast storing, it should stop cooling before vaccination 4-8h. Opening circulation piping and making yeast circulate 10 min, stopping 50 min. Intermittent ventilation during circulation, do aeration for 10s and stop 120s. In this situation, it can make CO2 and alcohol volatile, improving yeast out surroundings, thus recover yeast performance gradually and into oxygen consumption condition, reproduction once yeast vaccinated.
3.After recycled yeast storing, if you use partial yeast, circulate the yeast 30min and stop min before 4 hours for vaccination, then continue cooling and add needed partial yeast to wort. The rest yeast is not suitable to store for long time, it should better vaccinate within 15h, or it will autolysis.
The advantages of yeast activation: Assure yeast quality with pressure recycle, CO2 can basic remove, yeast get further activation, take into fermentation situation before adding, increase the possibility of yeast acid washing, uniform yeast quality after activation.
After the yeast activation, it reduce the slow period after vaccination, the wort can up soon, thus it can shortage fermenting time and improve utilize rate of fermenter tank, improving production intermittently.
Edited by Derrick
Sales Manager in Tiantai Company
Email:[email protected]
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