Ceramic cup we are often in contact with, enamel cup now most people are not used, but enamel bowl and enamel tableware such as enamel basin, and a lot of use.
Ceramic cup we are often in contact with, enamel cup now most people are not used, but enamel bowl and enamel tableware such as enamel basin, and a lot of use. Both ceramic cups and enamel cups have porcelain, so what is the relationship between the two?
An enamel cup is a utensil with one or more layers of enamel on the inside and outside of the metal. The glaze on the outside of the enamel cup is composed of sodium silicate and metal salts. General pure white enamel products do not contain lead, but contain aluminum and other heavy metals, and other colors will add some metal salt, so the enamel products not only contain heavy metals, but also contain lead, cadmium, tin, but because of such a layer of porcelain glaze, so as long as these harmful elements do not precipitate, there will be no threat to human health. The firing temperature of enamel products after porcelain plating is about 700℃, so its chemical properties are not stable. If intact enamel cups containing acidic drinks such as carbonation, orange juice, lemon juice, or hot coffee will release excess lead, of course, enamel products can not be heated. If there is damage, it can not be used. The harmful substances precipitated are simply... Not too much. If the home is useful in enamel appliances, it is best not to store acid substances in enamel appliances, of course, overnight leftovers are not put into enamel appliances, easy to produce acid and enamel reaction, and then precipitation lead. Daily best not to leave overnight food, even if the tableware safety will not react with food, eat is not good for the body. Acid has vinegar, coffee, citrus drinks, tomato juice, pickles, sugar water and so on.
A ceramic is an instrument made by applying glaze on a porcelain blank and then firing it at a high temperature. Ceramic high temperature firing also determines that its chemical properties are relatively stable, not easy to react with acid, etc., of course, here is also a qualified ceramic tableware, oneself can not identify ceramics well, you can buy tableware in regular channels. The heavy metal of the ceramic cup is also in the pattern pigments, so you can choose underglaze color, glaze color, choose glaze color, you can choose their trust or brand manufacturers, the best place to contact the food is not decorated. Once the porcelain surface cracks or drops, it should be discarded. Harmful substances such as lead and cadmium are likely to be released from these places, and the health of family members will not be guaranteed.
