隔夜茶隔夜茶因时间过久,维生素大多已丧失,且茶汤中的蛋白质、糖类等会成为细菌、霉菌繁殖的养料。所以,人们通常认为隔夜茶不能喝。隔夜银耳银耳含有较多的硝酸盐类,煮熟后放置时间比较久,在细菌的分解作用下,硝酸盐会还原成亚硝酸盐。亚硝酸盐在人体内可形成致癌的亚硝胺。 Overnight tea Overnight tea for too long, most of the vitamins have been lost, and the tea in the protein, sugar, etc. will become bacteria, mold breeding nourishment. Therefore, people usually think that overnight tea can not drink. Overnight Tremella white fungus contains more nitrate, placed after cooking for a long time, under the action of bacterial decomposition, nitrate will be reduced to nitrite. Nitrite in the human body can form carcinogenic nitrosamines.