First, identify it from the outer packaging. The outer packaging bag of real salt is thicker and softer to the touch, while the outer packaging bag of fake salt is brittle and thin. There are obvious creases on both sides of the fake salt packaging bag, but there are no creases on the real salt packaging bag. Look at the back of the packaging bag. Each package of real salt has a different number. If the number is the same, the entire batch of salt will be Fake salt; the anti-counterfeiting mark of each package of real salt is fixed at the same position\x0d\\x0d\The second is to look at the seal of the packaging bag. The packaging bag of real salt is neatly sealed and difficult to tear, while the sealing bag of fake salt is sealed with a soldering iron, which is easy to deform and tear. Real salt is filled into a cylindrical plastic film on the assembly line, and then cut and packaged. The upper and lower seals do not show a jagged shape; while the packaging bags of fake salt are disposable molded packaging bags with a jagged seal. \x0d\\x0d\The third is to look at the salt quality. Real salt is relatively clean, has high whiteness, and has no impurities. The whiteness of fake salt is poor and there are impurities. In terms of weight, fake salt generally does not meet the standards. \x0d\\x0d\Four chemical methods. In addition to NaCl, the ingredients in real salt also contain iodine. There is no iodine in fake salt. It is tested with starch solution. It can be distinguished based on the principle that the starch solution turns blue when exposed to iodine. In addition, industrial salt and edible salt The difference between salt is that industrial salt contains impurities such as magnesium chloride. This impurity easily absorbs moisture in the air and becomes damp. You can distinguish industrial salt from edible salt by observing whether it becomes damp for a long time. You can also add clarified lime water to distinguish industrial salt. Salt and use of salt, industrial salt added to clarified lime water will produce sediment