Toxic ginger is mainly caused by ginger farmers using a large amount of pesticides during ginger planting. Ginger farmers in Shandong have long used the pesticide "Shen Nong Dan" to eliminate insect pests in ginger. The main ingredient of "Shen Nong Dan" is Aldicarb is a highly toxic pesticide. 50 mg of aldicarb can kill about 50 kilograms of people. Therefore, it is strictly prohibited to be used in vegetables and fruits. It is only used in crops with long growth periods such as cotton and tobacco. , apply 2-3 kilograms per mu, and the safety interval is 150 days. However, ginger farmers in Shandong use more than 10 kilograms per mu during the process of planting ginger, and use pesticides twice in one season, with a safety interval of about 60 days. This As a result, a large amount of pesticides remain in the ginger sold on the market, seriously affecting people's health. How to identify poisonous ginger? First, wash and peel when eating. Most pesticides remain on the skin of ginger. If you can remove the skin of ginger, it is relatively safe. You can also wash it with alkaline water. Pesticides dissolve very quickly in alkaline water. Soak it in water several times before eating. . The second is to judge whether ginger is poisonous through several identification methods: First smell: mainly check whether there is any peculiar smell or sulfur smell on the surface of ginger. "Poisonous ginger" has a strong sulfur smell. If you break it open and taste it, you will find that the ginger smell is not strong or Taste changes. Second taste: Ginger has a special taste. If the ginger taste is not strong or the taste has changed, be careful when buying it; Third look: Normal ginger has a rough appearance, is dry, and is dark in color; "poison ginger" has a smooth appearance, as if it has been waxed. Very juicy and light yellow in color. The skin of "poisonous ginger" peels off more easily than normal ginger. After being broken open, the color difference between the inside and outside is quite large. Fourth placement: The residual period of pesticides is generally 7 days. The purchased ginger should be placed in a sunny and ventilated place for 7 days. General ginger has a long shelf life, but "poisonous ginger" will deteriorate and become moldy in a few days after being exposed to the air.