1. Avoid long-term food dishes in aluminum pot
aluminum has very active chemical properties and is easy to oxidize into alumina film in the air. Alumina film is insoluble in water, but can be dissolved in acidic or alkaline solution. Salt can also destroy alumina. If you put soup and vegetables in aluminum containers for a long time, not only will aluminum products be destroyed, but also more aluminum molecules will be dissolved in soup and vegetables. These aluminum molecules will chemically change with food and produce aluminum compounds.
long term eating food containing a large amount of aluminum and aluminide will destroy the normal proportion of calcium and phosphorus in the human body, affect the growth, development and metabolism of human bones and teeth, affect the activity of some digestive enzymes and weaken the digestive function of the stomach.
II. Do not hold acidic drinks in metal containers
acidic drinks will have a chemical reaction when they are in contact with metal containers, so that metal substances can be dissolved in the drinks. Once you drink this drink, it will cause chemical food poisoning, headache, nausea, diarrhea and other symptoms, while lemonade, orange water, sour plum soup and other drinks have high acidity.
III. soft plastic tableware should not contain oil and grease
soft plastic tableware should not contain oil and grease, because soft plastic tableware has poor oil prevention ability and is easy to be polluted by oil and grease; Avoid putting fresh fish. Due to the strong odor absorption characteristics of soft plastic tableware, it is difficult to remove the fishy smell after putting fresh fish.
IV. do not cook food with enamel products
all kinds of enamel products are made by plating enamel on the surface of iron products, and the enamel contains lead compounds such as enamel lead harmful to human body.
in order to ensure safety, it is best not to use enamel products to cook food, nor to use it to contain acidic food. Because the glaze color coated on the surface of enamel products is mainly composed of various metal salts, such as yellow and bright red. The glaze is a compound of cadmium and lead, which are toxic. Use colored enamel products to contain acidic food. Toxic substances such as lead and cadmium will dissolve into the food and cause chronic poisoning.
V. It is forbidden to use colored porcelain tableware to contain acidic food
whether the high-temperature colored glaze or low-temperature colored glaze painted on porcelain or pottery is a pigment composed of some toxic heavy metals and other compounds. For example, the bright red in the colored glaze is mostly cadmium containing compounds, cream yellow contains lead oxide, and emerald green contains chromium oxide. When this porcelain glaze vessel is used to hold weakly acidic foods such as fruit juice, vinegar and wine, the toxic heavy metals in the colored porcelain glaze flowers will dissolve out, enter the human body with the food, cause damage to the body, and even cause chronic poisoning. Cadmium poisoning can cause lung and bone damage, and lead poisoning will produce anemia, neurasthenia and other diseases.
6. Do not boil traditional Chinese medicine in stainless steel or iron pot
because traditional Chinese medicine contains a variety of alkaloids and various biochemical substances, especially under heating conditions, it will have a variety of chemical reactions with stainless steel or iron, or make the medicine ineffective, or even produce a certain toxicity.
VII. Do not use smelly wood as vegetable board
folk vegetable boards mostly choose white fruit wood, willow, etc. Some wood, such as black cypress, contains peculiar smell and toxic substances. When it is used as a vegetable board, its taste not only pollutes the dishes, but also easily causes vomiting, dizziness and abdominal pain.
8. Do not use bamboo chopsticks coated with paint or engraved
the paint coated on chopsticks not only contains lead, benzene and other chemicals, which is harmful to health, but also has peculiar smell after heat, affecting appetite. The carved bamboo chopsticks look beautiful, but they are easy to hide dirt, difficult to clean, breed bacteria and easy to cause disease.
IX. do not use all kinds of porcelain seasonings
seasonings, preferably in glassware. With the aging and decay of colored porcelain, the “Radon” in the pattern pigment will also pollute the food and be harmful to the human body.