How harmful is it to wipe the table with a rag?

The rag is often in a wet state, and a little food ingredient will become a good breeding ground for bacteria, polluting and breeding a large number of bacteria on the rag. Regarding the bacterial pollution of rags, some surveys show that the total number of bacteria in rags is per square centimeter 1 0,000-1 100,000, and the coliform group is per square centimeter10,000-1100,000. If such a rag is used to wipe the chopping board, knives and containers, it will pollute users' hands, food utensils and containers again, thus causing food pollution.