Eat and use tableware to be more hygienic!
Go out to eat and use tableware to be more hygienic!
People have a habit of distrusting restaurant dishware. Before using it, chopsticks, spoons, and other tableware are soaked in hot water or tea. It feels clean.
Does this common hot water soak achieve the desired disinfection?
[high temperature can sterilize? 】
Disinfection is to prevent illness from entering the mouth. Many infectious diseases are transmitted through eating. The scientific knowledge that bacteria and viruses are the source of infectious diseases has also become popular, so hot water disinfection is to kill the bacteria on the dishes and virus.
Heat does kill bacteria and viruses. The method of using heat as a means of killing microorganisms is called high-temperature sterilization, which was invented by microbial master Luis Pasteur. Pasteur discovered that the main culprit in the study of the acidification of wine was the microorganisms in the wine. After killing these microorganisms with high temperatures, the wine can be preserved for a long time. This method of disinfection is known as pasteurization and has so far been used in the disinfection of foods such as milk.
However, if you want to achieve the purpose of killing microorganisms, there is a requirement for the temperature of the heating. The tolerance of various microorganisms to temperature is different. Take hepatitis virus as an example. Hepatitis A virus can be inactivated in one minute at 85 degrees Celsius, while hepatitis B virus must be cooked in hot water at 100 degrees Celsius for several minutes to be inactivated. . Therefore, if you want to kill the microorganisms on the dishes, use freshly boiled water and keep it at this temperature for several minutes. No matter whether it is hot water or tea served by the waiter, this requirement cannot be met. Although the disinfection methods commonly used by diners can kill some microorganisms, they cannot achieve the sanitation and disinfection goals we are looking for. Psychological comfort effect.
In some restaurants, tableware is subjected to stricter high-temperature sterilization. Is this tableware safe to use?
When eating a buffet, each dish is served with forks, spoons, and other utensils for food. The study of these utensils revealed that there are many bacteria and viruses on the dishes. These dishes were strictly sterilized before use. The bacteria and viruses above were used. From the hands of the customers, when people use these utensils to take food, their hands will be stained with bacteria and viruses. If they then take food by hand or touch their mouth, nose and nose, bacteria and viruses will enter. in vivo. Dishware, such as chopsticks, spoons, plates, etc., that have been poisoned in restaurants can also be contaminated, including the hands of waiters, the hands of other customers, and our own hands. Therefore, washing hands is the key to avoid the spread of bacteria and viruses through tableware and food. Wash your hands before and after meals, and wash your hands before using food if you touch unclean surfaces.
Many people use hot water when washing their hands and think that it is better than cold water. In these people's minds, hot water can kill bacteria and viruses on the hands. This impression is wrong, because the hot water for washing hands is only 40 to 55 degrees Celsius. If you wash your hands with boiling water that can kill viruses and bacteria, Will be burned.
Although hot water does not kill viruses and bacteria, experts and the US FDA once thought that washing hands with hot water is better than washing with cold water, provided that if soap is used, hot water and soap can be used to wash off the oil on the hands. Grease is a breeding ground for bacteria.
However, a study in 2005 denied this claim. In tests using soap handwashing, the researchers found that water temperature had no effect on reducing the presence of bacteria in the hands, and the only effect of hot water hand washing was only comfortable. Several subsequent studies confirmed this point. Hot water was not only less effective than hand wash in cold water, but also washed away the protective layer of the skin and increased the chance of bacterial infection.
The study found that when people wash their hands, they wash their hands with hot water on 64% of the time. If all the times are added, for example, the United States will reach 800 billion per year, the resulting environmental pollution will be equivalent to the emissions of 1.25 million cars. Washing hands with cold water is the protection of the environment. The key to washing your hands is to wash your hands, use soap and liquid soap, and rub them repeatedly for a certain period of time, not water temperature.
[Houseware cleaning and disinfection]
How to disinfect the tableware in the restaurant is difficult for us to master. Disinfection of our own tableware is something we can control and it is also worthy of attention. No matter how many people there are, as long as there is food, dishes may be stained with bacteria and viruses and they must be cleaned. Cleaning dishes is not only to wash away the remaining food, but more importantly disinfection.
There are two ways to wash dishes: handwashing and dishwashers. With the improvement of living standards, dishwashers have started to enter the family, but Chinese, including Chinese who settled abroad, rarely use dishwashers. Comparing with handwashing, dishwashers have unparalleled advantages because they have a high-temperature sterilization process that can kill the microbes on the dishes, especially the dishes that have not been washed in time and have already inoculated a lot of microorganisms. It also has a dry process. The washed dishes are dry. Bacteria and viruses like to grow in a relatively humid environment. If the washed dishes are wet and placed in a cupboard, they may grow bacteria and viruses, so be sure to put them in later.
If you do not have a dishwasher or cutlery, there are a few things you should do when washing dishes. Hot water is also less effective than cold water. The first thing to note is the sponge used for dishwashing. In 1997, a study of dishwashing sponges for American households found that 33% of them had bacteria, and using such sponges would be counterproductive. Use sponges for regular disinfection and replace them regularly. In the film and television works, foreigners often see that after washing their dishes, they dry them with a cloth. This is another way of pollution because the cloth may also have viruses and bacteria. The correct way is to dry the dishes.
Dishwashing liquids containing antibacterial ingredients can play a very small role, because the antibacterial ingredients to achieve the purpose of killing bacteria, it should stay on the tableware for a period of time, rather than hurriedly washed away, hand wash disinfection rely more on cleaning, Water and other physical methods.
The same is true for hand washing. More physical methods are used instead of the hand sanitizer itself. Hand sanitizers containing antibacterial ingredients are not only useless, but they will also increase the chance of antibiotic-resistant bacteria because of long-term use of low-dose antibiotics. Therefore do not use resistant bacteria containing antibiotics.
【Out dining, worry about how to break the health of tableware? 】
When I return to the tableware disinfection and do not use hot water, what should I do if I do not trust the health of the dishes?
One of the measures is to consult the store whether to provide disposable tableware, such as Shangchen disposable lunch boxes. The second is to prepare alcohol-disinfecting tissue paper. When the dishware is not at ease, wipe the dishes with alcohol tissue paper to achieve a satisfactory disinfection effect.
People have a habit of distrusting restaurant dishware. Before using it, chopsticks, spoons, and other tableware are soaked in hot water or tea. It feels clean.
Does this common hot water soak achieve the desired disinfection?
[high temperature can sterilize? 】
Disinfection is to prevent illness from entering the mouth. Many infectious diseases are transmitted through eating. The scientific knowledge that bacteria and viruses are the source of infectious diseases has also become popular, so hot water disinfection is to kill the bacteria on the dishes and virus.
Heat does kill bacteria and viruses. The method of using heat as a means of killing microorganisms is called high-temperature sterilization, which was invented by microbial master Luis Pasteur. Pasteur discovered that the main culprit in the study of the acidification of wine was the microorganisms in the wine. After killing these microorganisms with high temperatures, the wine can be preserved for a long time. This method of disinfection is known as pasteurization and has so far been used in the disinfection of foods such as milk.
However, if you want to achieve the purpose of killing microorganisms, there is a requirement for the temperature of the heating. The tolerance of various microorganisms to temperature is different. Take hepatitis virus as an example. Hepatitis A virus can be inactivated in one minute at 85 degrees Celsius, while hepatitis B virus must be cooked in hot water at 100 degrees Celsius for several minutes to be inactivated. . Therefore, if you want to kill the microorganisms on the dishes, use freshly boiled water and keep it at this temperature for several minutes. No matter whether it is hot water or tea served by the waiter, this requirement cannot be met. Although the disinfection methods commonly used by diners can kill some microorganisms, they cannot achieve the sanitation and disinfection goals we are looking for. Psychological comfort effect.
In some restaurants, tableware is subjected to stricter high-temperature sterilization. Is this tableware safe to use?
When eating a buffet, each dish is served with forks, spoons, and other utensils for food. The study of these utensils revealed that there are many bacteria and viruses on the dishes. These dishes were strictly sterilized before use. The bacteria and viruses above were used. From the hands of the customers, when people use these utensils to take food, their hands will be stained with bacteria and viruses. If they then take food by hand or touch their mouth, nose and nose, bacteria and viruses will enter. in vivo. Dishware, such as chopsticks, spoons, plates, etc., that have been poisoned in restaurants can also be contaminated, including the hands of waiters, the hands of other customers, and our own hands. Therefore, washing hands is the key to avoid the spread of bacteria and viruses through tableware and food. Wash your hands before and after meals, and wash your hands before using food if you touch unclean surfaces.
Many people use hot water when washing their hands and think that it is better than cold water. In these people's minds, hot water can kill bacteria and viruses on the hands. This impression is wrong, because the hot water for washing hands is only 40 to 55 degrees Celsius. If you wash your hands with boiling water that can kill viruses and bacteria, Will be burned.
Although hot water does not kill viruses and bacteria, experts and the US FDA once thought that washing hands with hot water is better than washing with cold water, provided that if soap is used, hot water and soap can be used to wash off the oil on the hands. Grease is a breeding ground for bacteria.
However, a study in 2005 denied this claim. In tests using soap handwashing, the researchers found that water temperature had no effect on reducing the presence of bacteria in the hands, and the only effect of hot water hand washing was only comfortable. Several subsequent studies confirmed this point. Hot water was not only less effective than hand wash in cold water, but also washed away the protective layer of the skin and increased the chance of bacterial infection.
The study found that when people wash their hands, they wash their hands with hot water on 64% of the time. If all the times are added, for example, the United States will reach 800 billion per year, the resulting environmental pollution will be equivalent to the emissions of 1.25 million cars. Washing hands with cold water is the protection of the environment. The key to washing your hands is to wash your hands, use soap and liquid soap, and rub them repeatedly for a certain period of time, not water temperature.
[Houseware cleaning and disinfection]
How to disinfect the tableware in the restaurant is difficult for us to master. Disinfection of our own tableware is something we can control and it is also worthy of attention. No matter how many people there are, as long as there is food, dishes may be stained with bacteria and viruses and they must be cleaned. Cleaning dishes is not only to wash away the remaining food, but more importantly disinfection.
There are two ways to wash dishes: handwashing and dishwashers. With the improvement of living standards, dishwashers have started to enter the family, but Chinese, including Chinese who settled abroad, rarely use dishwashers. Comparing with handwashing, dishwashers have unparalleled advantages because they have a high-temperature sterilization process that can kill the microbes on the dishes, especially the dishes that have not been washed in time and have already inoculated a lot of microorganisms. It also has a dry process. The washed dishes are dry. Bacteria and viruses like to grow in a relatively humid environment. If the washed dishes are wet and placed in a cupboard, they may grow bacteria and viruses, so be sure to put them in later.
If you do not have a dishwasher or cutlery, there are a few things you should do when washing dishes. Hot water is also less effective than cold water. The first thing to note is the sponge used for dishwashing. In 1997, a study of dishwashing sponges for American households found that 33% of them had bacteria, and using such sponges would be counterproductive. Use sponges for regular disinfection and replace them regularly. In the film and television works, foreigners often see that after washing their dishes, they dry them with a cloth. This is another way of pollution because the cloth may also have viruses and bacteria. The correct way is to dry the dishes.
Dishwashing liquids containing antibacterial ingredients can play a very small role, because the antibacterial ingredients to achieve the purpose of killing bacteria, it should stay on the tableware for a period of time, rather than hurriedly washed away, hand wash disinfection rely more on cleaning, Water and other physical methods.
The same is true for hand washing. More physical methods are used instead of the hand sanitizer itself. Hand sanitizers containing antibacterial ingredients are not only useless, but they will also increase the chance of antibiotic-resistant bacteria because of long-term use of low-dose antibiotics. Therefore do not use resistant bacteria containing antibiotics.
【Out dining, worry about how to break the health of tableware? 】
When I return to the tableware disinfection and do not use hot water, what should I do if I do not trust the health of the dishes?
One of the measures is to consult the store whether to provide disposable tableware, such as Shangchen disposable lunch boxes. The second is to prepare alcohol-disinfecting tissue paper. When the dishware is not at ease, wipe the dishes with alcohol tissue paper to achieve a satisfactory disinfection effect.
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