Abstract: The application of sulphite in food industry has existed for a long time and showd a prosperous future in our daily life. However, with the further research of sulphite as food additives, but toxicity has been concerned from the aspects of food safety. This paper assessed the function of sulphite, and reviewed the methods of using sulphite in food processing, security considerations and limit levels of application.

Key words: food, sulphite, function, methods, limit level, food safety