According to the report, a research report by the University of Giessen in Germany and the Helmtz Institute in Munich showed that there are as many as 362 kinds of bacteria on the sponges used in the kitchen, and the concentration of bacteria is far beyond people's imagination. Cannot be completely removed. What is said to be the world's first detailed study of used kitchen sponges is published in the journal Scientific Reports.

The report also showed that half of the cultures detected had significant potential for pathogenicity. Some other bacteria, such as Acinetobacter johnsoni, Moraxella osloii (which is responsible for the bad smell from used kitchen hemp sponge) and Chryseobacterium hominis, are very easy for elderly educators and themselves Infection in immunocompromised patients.

Even when sponges are cleaned regularly and even sterilized or dried in the microwave, they can harbor high levels of bacteria, the report warns. The researchers believe that while the bacteria decreased in the short term after the sponge was washed, they quickly re-grew, partly because the sponge's porous structure provided an ideal breeding ground for the bacteria and partly because the sponge's porous structure provided bacteria with an ideal breeding ground. An ideal place to grow, moisture and nutrients, such as food scraps and stains on the bulk loofah 6 inch, also contribute to the rapid growth of bacteria. Experts recommend replacing within a week of use.

Sponge is also a common cleaning tool in the homes of Shanghai residents. After reading this report, do you want to get rid of the kitchen bamboo sponge at home! ?

Is the kitchen sponge thing real?

According to reports, the Shanghai Center for Disease Control and Prevention conducted a survey on the bacterial contamination of residents' rags a few years ago. The staff collected more than 500 rags made of sponges, cotton yarn and other materials from residents' homes, and tested the number of bacteria in the laboratory. The test results showed that the sponges and rags used in residents' homes were seriously polluted by bacteria, among which sponges were indeed the most serious. However, experts also stressed that there is no need for the public to panic excessively. The number of bacteria on utensils such as tableware is related to the cleaning method. Sponges and wipes need to be sanitized and replaced frequently.

"Although we haven't identified different types of bacteria, the conclusion that the relevant data shows that the environmental pollution problem is serious is consistent with this technical research in Germany." said the director of the Disinfection and Infection Risk Control Department of the Shanghai Center for Disease Control and Prevention. According to laboratory measurements, there are hundreds of thousands of bacteria per gram of sponges and rags in these countries, and even tens of millions. For routine management, these information figures are very high." Bacteria need a large number of enterprises to exist, and sponges, rags, etc. will produce peculiar smell and sticky hands.

The test results also showed that the sponges were more heavily contaminated with bacteria than the imitation cotton wipes. "This has to do with the material of the sponge, which absorbs dirt more easily and is less likely to dry out in the sun, making it easier for bacteria to grow," explains the director.

What impact will so many bacteria have on human health?

The director said that under normal circumstances, the "hidden" bacteria in sponges and rags are mostly common bacteria, such as mold and some bacteria in the environment. These bacteria are not a big problem for normal people, but for people with weakened immune systems, it may increase the risk of infection.

Experts also emphasized that the number of bacteria on tableware has a lot to do with the way it is cleaned. After the dishcloth is used to clean the tableware, it can be rinsed with tap water and put into a disinfection cabinet for disinfection or dried directly, which can prevent bacteria from staying on the tableware. However, if the tableware is rinsed with tap water and then wiped again with a rag, it will increase the risk of the tableware being contaminated by bacteria again, which should be avoided.

"Citizens don't need to panic too much about the bacteria on sponges and rags in our country, but they must not ignore them and their hygiene." The director suggested that in daily study and life, sponges and rags should be replaced frequently to develop a good use Behavioral habits, rags of various materials are hung up and dried after each cleaning. Drying technology can reduce the growth of some bacteria. At the same time, regularly boil and disinfect the rag, or soak the sponge with 84 and other fungicides, which can effectively reduce the pollution of these bacteria.