吃剩的饭菜应先加热至100摄氏度,待冷却后再放入冰箱,以杀灭饭菜里的细菌。健康人口腔中带有20多种微生物,中国人习惯用筷子吃饭,用筷子夹菜时会把口腔中的细菌(如葡萄球菌等)带到饭菜中。在冰箱冷藏室2～8摄氏度的条件下,葡萄球菌繁殖虽然很慢,但时间长了就会积少成多。葡萄球菌能产生一种肠毒素,它能抵抗高温。因此,如果不先煮沸食物再放入冰箱,即使把剩饭剩菜加热后再吃,人体也会因为摄入肠 Leftover food should be heated to 100 degrees Celsius, to be cooled and then into the refrigerator to kill the bacteria in the food. Healthy population with more than 20 kinds of micro-organisms in the mouth, the Chinese people used to eat chopsticks, vegetables will be chopsticks in the mouth when bacteria (such as staphylococcus) to meals. In the refrigerator freezer at 2 to 8 degrees Celsius conditions, Staphylococcus aureus reproduction is very slow, but a long time will add up. Staphylococci produce an enterotoxin that is resistant to high temperatures. Therefore, if you do not boil the food and then put it into the refrigerator, even if the leftovers after heating to eat, the human body will be because of intake of intestines