First, avoid the use of paint or carving engraved router bamboo chopsticks. Paint coated on chopsticks containing lead, benzene and other chemicals, harmful to health. Carved bamboo chopsticks may seem beautiful, but easy to filth, breeding bacteria, not easy to clean.
Second, avoid using all kinds of color porcelain to serve ingredients. Ingredients are best packed in glassware. Color porcelain contains lead, benzene and other pathogenic, carcinogenic substances.
With the aging and decay of colored porcelain, radon in pattern pigments pollutes food and is harmful to human beings.
Third, bogey iron pot boiled green beans. Because mung beans contain elemental tannins, in high temperature conditions will become black Tanningtie, so that green bean soup black, there is a special smell, not only affect appetite, taste, but also harmful to the human body.
Four, bogey stainless steel or iron pot to boil Chinese medicine. Because Chinese medicine contains a variety of alkaloids and all kinds of biological chemicals, under heating conditions, there will be a variety of chemical reactions with stainless steel or iron, will make the drug failure, and even produce a certain toxicity.
Five, avoid using Uber wood or smelly wood to make chopping boards. Ubam contains odors and toxic substances, using it as a vegetable board not only pollute dishes, but also easily cause vomiting, dizziness, abdominal pain. Therefore, the private production of chopping board of the preferred wood is white fruit, saponin wood, birch and willow.