The refrigerator can be kept for a week. Baiyun Zhu Shou is a famous dish in Guangzhou, Guangdong Province, which belongs to Cantonese cuisine. Almost every restaurant in Guangzhou has this dish. This dish is based on pig's hand, boiled in boiling water until soft and rotten, taken out and cooled, and then mixed with seasoning. This dish is cold and easy to breed germs in hot summer. In order to prevent "illness from entering the mouth", it is usually kept in the fresh-keeping compartment of the refrigerator for one week. But in order not to spoil, it is safer to cook and eat first.