很多人尤其是老年人喜欢储存一些肉类食品。但冷藏室内的肉类可能冷冻了个把月,甚至长达半年一年,这种长时间冷冻的食品还能吃吗?反复冷冻的食品卫生吗?调查员取得了分别冷冻半年、一个月、4天的猪肉样本,送到实验室检测细菌数量。 Many people, especially older people, prefer to store some meat products. However, the meat in the refrigerator may have frozen for months or even up to six months and a year. Can such frozen food be eaten for a long time? Are food hygiene frozen repeatedly? The investigators have been frozen for six months, one month, 4-day pork samples sent to the laboratory to detect the number of bacteria.