How high a water temperature can kill bacteria

There is a saying that disease comes from the mouth. The food and water we eat every day contain a large number of bacteria and viruses. If we can greatly reduce the number of bacteria in the food and water we eat, we can reduce the chance of our bodies getting sick. This is a means of protecting our health and is also a relatively simple method. So what water temperature is needed to kill bacteria?

Generally speaking, what is the minimum temperature and duration required to kill the insects?

Based on the temperature requirements for bacterial growth, mesophilic bacteria can be divided into body temperature type and room temperature type. The body temperature type mainly includes bacteria that parasitize warm-blooded animals and humans, and their optimal growth temperature is 37°C; the room temperature type mainly includes saprophytes and parasites of plants and marine organisms, and their optimal growth temperature is 25-28°C.

Therefore, it can be inferred that when the tap water temperature is 37 degrees for a long time, the infection and reproduction of bacteria are the fastest, and the bacteria contained are the most.

Tap water must be boiled at 100 degrees for 3 minutes to kill most bacteria. Tap water needs to reach 100 degrees and boil. It depends on where you are. In low altitude places, tap water needs to be at 100 degrees, while in high altitude places, tap water can be boiled at 70 to 99 degrees. Therefore, in high altitude places, it takes 2 to 3 times longer to boil than in low altitude places to kill most bacteria.

Most bacteria will die at 100 degrees, but some heat-resistant bacilli or spores can still survive, so they will be sterilized at 121 degrees for about 20 minutes. -----------------Does sterilizing the culture medium mean killing all the bacteria in the culture medium? Yes, using high temperature and moist heat method. 121 degrees for 20 minutes. The sterilization of surgical instruments and canned food must be based on the ability to kill Bacillus spores. Bacillus spores are relatively resistant and can survive high temperatures for a short period of time. Generally speaking, if Bacillus spores are killed, other microorganisms are also killed (except viruses).