First frost or beginning of winter?

Beginning of winter is an important solar term among the 24 solar terms, marking the official start of winter. In the traditional diet of China, beginning of winter is an important season, and people will adjust their eating habits according to the changes of solar terms. Scalding onions is a traditional food custom at the beginning of winter, which helps to strengthen the body's resistance, prevent colds and protect respiratory health. Onion is rich in vitamin C, sulfide and other nutrients, and has antibacterial, anti-inflammatory and antioxidant effects. Scalding onions can increase human immunity, improve resistance and help prevent common respiratory diseases in winter. Therefore, peeling onions in early winter is a healthy eating habit.