When we go out to eat, we always pay great attention to the cleanliness and hygiene of the dishes. And many people are accustomed to scalding the tableware with boiling water before eating, thinking that it can be sterilized and disinfected. However, this may not be the case.
When dining in a restaurant, the water served by the waiter is not necessarily boiled, and the temperature may be below 60 to avoid scalding the consumer. When the dishes are rinsed with such water, the temperature will drop even further, which will not be able to disinfect and sterilize. When dishes are not cleaned properly, the main microorganisms present are E. coli and Salmonella.
In order to completely eliminate E. coli, it is necessary to meet the temperature above 75 and continue to heat for 1 minuteFor Salmonella, the temperature needs to be kept above 70 degrees and heated for 5 minutes. If the temperature is only 60, it will take 15 minutes to completely destroy the salmonella. Therefore, simply scalding the dishes with hot water will not achieve the effect of destroying most bacteria.
Although boiling water scalding tableware cannot completely kill bacteria, it still has a certain killing effect on some bacteria with weak resistance. Moreover, for viruses and parasites that we can't see, boiling water to scald dishes also has a certain effect.
To sum up, there is no harm in scalding the dishes with hot water when eating out, but don't expect significant disinfection and sterilization results. If the water temperature is not high enough or the time is not long enough, boiling water will basically have no effect. In order to ensure that we eat safely and securely, we still need to choose a clean and hygienic restaurant.