Can yogurt be directly heated at high temperature? Don't!
The most valuable thing in yogurt is lactic acid bacteria, which is not resistant to high temperature. If heated directly, when the temperature exceeds 60℃, a large number of active lactic acid bacteria will be killed, and their nutritional value and health care function will be reduced, and even the taste will become worse.
Tip: Yogurt can be drunk "warm"
Yogurt can be heated! Yogurt is made by sterilizing milk and immediately cooling it to about 45℃ for inoculation. After inoculation, the temperature was kept at 465438 0℃ ~ 42℃ and the culture time was 2.5 ~ 4.0 hours. When it reaches a solidified state, the fermentation is terminated.
The fermented solidified yogurt is immediately moved into the cold storage at 0℃ ~ 4℃ to quickly inhibit the growth of lactic acid bacteria and avoid the increase of acidity caused by continuous fermentation. Therefore, yogurt can be heated to 45℃ with warm water without causing the death of probiotics.
But yogurt can't be heated too high, and it can be drunk at a suitable temperature. Excessive temperature will kill the most nutritious lactic acid bacteria in yogurt.
Bian Xiao reminds: The fresher the yogurt, the better the nutrition.
Yogurt can be stored for about 14 days in an environment below 4℃. In the refrigerator at 4℃, the number of lactic acid bacteria in yogurt will gradually decrease, and the number of live bacteria will decrease to about one tenth after 14 days. So try to choose fresh yogurt.
Need to be reminded that the storage time of yogurt at room temperature should be shortened as much as possible, and the yogurt taken out of the refrigerator should be eaten within 2 hours.
Because it is stored at a higher temperature, the death rate of lactic acid bacteria will be greatly accelerated, and the health care function of yogurt will be greatly reduced. At the same time, because lactic acid bacteria produce too much acid at high temperature, the taste of yogurt will become too sour. Yogurt is still safe and edible, but if it smells of alcohol and mildew, it will be contaminated by harmful bacteria and must not be eaten.
Precautions:
1. Yogurt can be heated, but not for long. If the temperature is too high, probiotics will die, and protein will be denatured, which will affect the nutritional value of yogurt.
2. Yogurt heating is not suitable for microwave oven, which uses electromagnetic effect, and electromagnetic wave has a certain killing effect on probiotics;
3. The best way to heat yogurt is to soak it in warm water. As long as you soak in warm water of about 45℃, you can reduce your fever. You also need to pay attention to heating time. If the time is too long, yogurt will continue to ferment, which will lead to sour yogurt and affect eating.