Abstract: In response to the concept of energy conservation, emission reduction, and recycling resources under the dual carbon goals, and to promote the shift of society and households towards more environmentally friendly and economical lifestyles, household refrigerator cryogenic and fast freezing technology has garnered widespread attention in recent years. This technology enables rapid freezing at lower temperatures, better preserves food nutrients, and reduces food loss and waste. Summarizes and organizes the principles, evaluation metrics, and implementation methods of cryogenic and fast freezing technology. It also analyzes the future development directions of this technology for household refrigerators, providing a reference for subsequent research.

Key words: Household refrigerator, Cryogenic and fast freezing technology, Food preservation