According to the Tianyancha App, on September 15, the invention patent for “food preservation methods, devices, refrigeration equipment, media and program products” jointly applied for by Xiaomi Technology Co., Ltd., Xiaomi Smart Home Appliance Co., Ltd. and Beijing Xiaomi Mobile Software Co., Ltd. was announced. The application publication number was CN122753004A. The summary shows that this method first cools quickly, and when the temperature of the food falls below a certain threshold, the cooling rate is reduced to prevent the food from freezing; then, it enters the third stage of refrigeration to keep the food at an ultra-cold state, quickly cooling and keeping it fresh while preventing overfreezing. The application is currently under review.

According to the Tianyancha App, on September 15, the invention patent for “food preservation methods, devices, refrigeration equipment, media and program products” jointly applied for by Xiaomi Technology Co., Ltd., Xiaomi Smart Home Appliance Co., Ltd. and Beijing Xiaomi Mobile Software Co., Ltd. was announced. The application publication number was CN122753004A. The summary shows that this method first cools quickly, and when the temperature of the food falls below a certain threshold, the cooling rate is reduced to prevent the food from freezing; then, it enters the third stage of refrigeration to keep the food at an ultra-cold state, quickly cooling and keeping it fresh while preventing overfreezing. The application is currently under review.