2. Dry the tableware and fruit with a rag: In general, a rag is omnipotent, which can wipe both the table and the tableware. Moist and nutritious rags are suitable for the reproduction of various pathogenic microorganisms if they are not disinfected, cleaned and aired frequently. It is more hygienic to wipe tableware and fruits without dishcloth.
3. Wash tableware, fruits and vegetables after meals: Washing meals can be used to clean tableware, vegetables and fruits, and remove oil stains on tableware and pesticide residues on fruits and vegetables, which has become an essential daily necessities in people's lives. But few people know that washing meals containing sodium alkylbenzene sulfonate is harmful to human health. In order to reduce the harm of meal washing to human health, when washing vegetables and fruits, we should pay attention to not too high concentration, generally about 0.2% is better; The appropriate soaking time is 5 minutes, and it needs to be washed repeatedly with running water after soaking. The same is true of tableware washing. In addition, don't buy unqualified bulk rice in the stall, because most of these meals are unqualified.
4. Cover food with gauze mask: Covering food with gauze mask in summer can prevent direct pollution of flies, but it can't be covered at once. Because the eggs laid by flies on the veil and the dirt on them will still fall from the gaps in the veil and pollute the food. Therefore, it is necessary to take a multi-pronged approach to prevent flies, and it is best to keep flies out.
Wash your hands before and after meals;
Hand is the "diplomatic organ" of human body, which plays a leading role in all people's "foreign affairs activities", such as doing all kinds of work, taking out garbage, brushing spittoon, washing feet, wearing shoes and cleaning stools. Therefore, hands are easily infected with many pathogenic microorganisms. Scientists have made such a survey that an unwashed hand contains at least 40,000 to 400,000 bacteria. Nail seam is a good place for bacteria to hide. One nail seam can hide as many as 3.8 billion bacteria. In addition, someone did an experiment. Patients with acute dysentery use 5 ~ 8 layers of toilet paper, and Shigella can penetrate into their hands. Shigella can survive for 3 days in their hands. The flu virus can survive for 7 days on wet and warm hands. So, my hands are dirty. Moreover, when traveling, visiting and studying, and performing tasks, hands often touch some items and get dirty. In particular, patients with infectious diseases and people who look healthy but actually have viruses in their bodies often spread pathogenic microorganisms to various articles and appliances. When a healthy person touches his hand, pathogenic microorganisms will reach you. If you don't wash your hands before and after meals, you will bring bacteria into your mouth and eat them in your stomach. This is what people often say: "Bacteria come from hands and diseases come from mouth." Therefore, it is necessary to develop the habit of cutting nails and washing hands frequently before meals, after defecation and after work.
Walnut is bitter because the skin outside the walnut kernel is not removed when eating, so it will be bitter; At the same time, the walnut kernel may have bitter taste aft