Aspergillus flavus is difficult to kill, but most of it can be removed by ultraviolet light, alkaline conditions, and high temperatures. 1. Ultraviolet light: Ultraviolet light is used to destroy the nucleic acid substances of microorganisms through photon energy, which in turn makes the microorganisms die. By irradiating with UV light, aflatoxin can be removed from the surface of articles. The UV content in sunlight is low, it can inhibit the growth of Aspergillus flavus, but cannot destroy aflatoxin. 2. Alkaline conditions: Aflatoxin is easy to decompose under alkaline conditions, so soaking in baking soda (1% sodium bicarbonate) for a period of time can remove more than 90% of aflatoxin. 3. High temperature: aflatoxin is heat-resistant and can only be decomposed at a high temperature of 280°C. Boiling points such as water washing and cooking used in daily life do not have much effect on it. Finally remind you, aflatoxin on the World Health Organization (WHO) cancer agency classified as a class of carcinogens, has a strong toxicity and carcinogenicity, serious damage to the liver and organs. Therefore, when the food is moldy, do not eat.