1. To achieve the "whiteness" of paper, many manufacturers use bleaching agents during production. When these agents come into contact with food, they trigger a series of chemical reactions that produce harmful substances, easily contaminating the food. 2. Laying plastic tablecloths on dining tables While they may look nice, plastic tablecloths easily accumulate dust and bacteria. Moreover, some are made from toxic vinyl chloride resin.Prolonged contact between tableware, food, and plastic tablecloths can lead to contamination with harmful substances, potentially causing unnecessary illnesses and compromising health.
3. Covering food with mesh covers
While fly screens prevent flies from landing directly on food, flies may still rest on the mesh surface, depositing germ-laden eggs. These eggs can easily fall through the mesh holes and contaminate the food.
4. Wiping tableware and fruit with towels
Urban water supplies in China undergo rigorous disinfection. Tableware and fruit rinsed with tap water are essentially clean and require no further wiping. Towels harbor numerous pathogens, and using them to wipe surfaces causes secondary contamination.
5. Reheating spoiled food under pressure
Some homemakers boil spoiled food at high temperatures and pressures, believing this kills bacteria. Medical evidence shows toxins secreted by bacteria before entering the body are highly heat-resistant and difficult to destroy.
6. Cutting out rotten parts of fruit before eating
Some people cut out rotten sections of fruit, thinking this solves the problem.
In reality, the remaining fruit has already been contaminated by bacterial metabolites through the juice, and microorganisms may even begin multiplying. Among these, mold can cause human cell mutations and lead to cancer.
7. Long-term use of the same medicated toothpaste
Medicated toothpaste has some inhibitory effect on certain bacteria. However, prolonged use of the same type can cause oral bacteria to gradually adapt and develop resistance. Therefore, toothpaste should also be changed regularly.