Angel yeast reached the shelf life one month in advance, because the activity of yeast will not be exactly the same as the experimental results, so the manufacturer is required to advance one month. If the storage method of the manufacturer is not very reasonable, it is likely that the yeast has expired.
Yeast is a very nutritious thing. It is inactive, but its nutrition is still there. Watering flowers and raising goldfish are all good choices. Dry yeast should be used as soon as possible after opening the bag, because it will lose its activity soon after opening the bag.
Extended data:
Precautions:
1, must be stored in the refrigerator or refrigerated at low temperature. If stored at room temperature, it is easy to autodissolve and rot. The shelf life is only 30 days, so you can't buy too much at a time. You need to buy it often.
2. It needs to be activated before use. In spring, autumn and winter, warm water of 30-35℃ is usually used to activate 10- 15min, and fresh yeast can be added to flour only after it recovers its activity. But in summer, the high-speed mixer can be started in advance without water.
3. After the yeast is opened, seal the opening, and then put it in the refrigerator to preserve its activity: the factors affecting the stability of yeast are moisture, nitrogen content, storage temperature and whether there is oxygen or not. Yeast cells are dormant under dry, air-free and nutrient-free conditions, and are easy to preserve. It is best to use it up in a short time after opening it.
4. If the yeast can't be used up after opening the bag, it should be stored in cold storage, and it should not be heated and damp, that is, put it in the refrigerator for cold storage to preserve the activity of the yeast.
Baidu Encyclopedia-Angel Yeast
Baidu Encyclopedia-Yeast