How to scientifically choose tableware in the restaurant, let’s learn together
How to scientifically choose tableware in the restaurant, let’s learn together: How to scientifically choose tableware in the restaurant
From the tableware can reflect a lot of problems, but also have a certain impact ability, so the catering industry must have some research on the selection and matching of tableware.
Tableware is valued by many consumers. Consumers go to eat as long as they see the tea pot. The pots are not clean and there is a gap. If they are not good, they will get up and leave, so it is necessary to make fine dining.
Tableware and utensils used to distribute or ingest food. Tableware includes complete sets of metalware, ceramic tableware, teaware, glassware, dishes and trays, as well as a wide variety of containers and hand tools for a variety of uses. Choose tableware for the restaurant, in addition to choosing styles.
First, ceramic tableware: don't choose "glaze color"
Ceramic tableware is versatile, delicate, smooth, colorful and easy to clean. It is the first choice for most households to buy tableware. However, the glaze on the ceramic surface may become a healthy killer. Lead, mercury, radium, cadmium, etc. in the glaze are all harmful elements.
The manufacturing methods of ceramic tableware are divided into three types: glaze color, glaze color and underglaze color. The glaze color ceramic is made of pigment paper on the glaze surface or directly painted on the surface of the product, and then baked at low temperature. Since the baking temperature does not reach the melting degree of the glaze layer, the flower surface cannot be sunken. In the glaze, touch the glazed ceramic on the hand, and the flower surface has obvious concave and convex feeling.
The baking temperature of the glazed ceramics can melt the glaze, the pigment can sink into the glaze, and after being cooled, it is covered by the glaze layer, the surface of the product is smooth, and the hand touch has no obvious unevenness. All the underglaze color ceramics are made on the porcelain slab. After glazing, it is fired once at a high temperature. The flower surface is covered with glaze layer, which looks bright, flat and smooth.
Harmful metals are mainly derived from glaze pigments. Radioactive elemental radium can kill white blood cells. Cadmium, lead and mercury are heavy metals. Cadmium and lead can cause liver or other visceral poisoning. Mercury can cause liver and kidney hardening.
Long-term use of glazed tableware for vinegar, wine, juice, vegetables and other foods with high organic acid content, lead and other heavy metals in the tableware will dissolve and enter the body with the food, long time will lead to chronic heavy metal poisoning.
Second, glass tableware: "Crystal glass" hidden dangers"
The glass meal has the characteristics of high hardness, stable chemical properties, smooth and easy surface, and environmental protection. Glass tableware is hygienic and contains no toxic substances.
Crystal glass tableware is a threatening source of lead pollution. Since the content of lead oxide in crystal products is as high as 20-30%, it is used to hold water, which generally does not cause lead poisoning. However, if used to hold wine, the wine will dissolve lead in crystal glass products, and the longer the time is dissolved. The more the amount.
Similarly, when using crystal glass containers for foods, especially cola, honey, and juice-based acidic foods, lead ions are also prone to form soluble lead salts that are ingested by the human body with beverages or foods, which is a serious health hazard. Therefore, crystal glass products are called "beautiful killers" by scientists.
Third, plastic tableware: "color" is good to see no health
In the tableware market, plastic products are light and not fragile, and they are resistant to glass products. However, the health hazards and safety of plastic tableware have always been the focus of attention.
Many plastic tableware have beautiful color schemes on the surface. If the content of lead, cadmium and other metal elements in the pattern exceeds the standard, it will cause harm to the human body. On the surface of a typical plastic product, there is a protective film. Once the film is scratched by a hard device, harmful substances are released.
The surface of inferior plastic tableware is often not smooth, and harmful substances are easily leaked out. Therefore, consumers should try to choose plastic tableware without decorative patterns, colorless and odorless, smooth surface and strong hand feeling.
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