How long does it take for yeast to ferment flour and dough in winter?

2. Generally, the fermentation time is about 30-40 minutes, which needs to be measured according to other objective factors such as the room temperature of the day and the temperature of the dough itself.

3. The temperature is low in winter, and yeast is a pure natural microorganism and a living organism. It needs to be in the right environment (temperature, humidity, etc.). ) to achieve the best fermentation effect.

4. Generally, the fermentation temperature of yeast should be controlled at 10-40℃, when the activity of yeast is the best.

5. Yeast powder means that the yeast has not been decomposed, but the nutrients soaked in yeast powder have been decomposed, so that the speed and efficiency of microbial absorption and utilization are higher and the fermentation residue is less.

6. At present, yeast extract and yeast powder are basically used in the research of biological fermentation, and yeast powder is mainly used in traditional fermentation industries such as antibiotics.

7. There are several specifications of feed yeast sold in the market.

8. The feed yeast specified by the industry standard of People's Republic of China (PRC) and the Ministry of Light Industry of China refers to the product made by taking high-concentration organic waste liquid such as starch, molasses, monosodium glutamate and alcohol as the main raw materials, culturing the yeast through liquid aeration, separating the yeast from its fermented mash (without adding other substances) and drying, which belongs to one of the single-cell protein feeds.

9. It is also pointed out that the main yeasts are Candida utilis, Candida tropicalis, Candida globosa, Candida globosa and Saccharomyces cerevisiae.