Abstract: With the increasing attention to food preservation and dietary health, diverse food management methods have been applied to refrigerators and freezers, managing the entry and exit of ingredients and linking them with people's healthy diets. Food ingredient management can be achieved through image recognition, RFID, OCR, NFC, and voice technology, but each method has certain technical limitations, leading to limited application and promotion in products. NFC technology has advantages such as low cost, high recognition rate, and easy production, making it easier to promote and apply. A food ingredient management system based on NFC technology includes hardware design principles and software design processes. By using NFC food clips to manage food entry and exit, shelf life, nutrition management, etc., it can improve user experience and is suitable for both household and commercial use, with broad application prospects.

Key words: Smart refrigerator, Smart freezer, Ingredient management, Ingredient identification, NFC, Diet management