What kinds of tableware do you have?

Abstract: In modern families, tableware is an indispensable part of us, and we always use it to hold food and rice. A good set of tableware not only provides convenience for us, but also plays an effective decorative role. But now there are many kinds and brands of tableware. How should I choose? What kinds are there? Next, let's take a look at the material classification and characteristics of tableware in Bian Xiao. What kinds of tableware materials are there? Classification and characteristics of tableware materials.

What kinds of tableware do you have?

1, ceramic tableware

Ceramics used to be recognized as non-toxic tableware, and there are also reports of poisoning caused by using ceramic tableware. It turns out that the beautiful coating (glaze) of some porcelain tableware contains lead. If the temperature is not enough when firing porcelain or the glaze composition is not up to standard, the lead content of tableware may increase. When food comes into contact with tableware, lead may overflow the glaze and mix into food. Therefore, those ceramic products with prickly and mottled surfaces, uneven enamel and even cracks are not suitable for tableware. When choosing porcelain tableware, tap the porcelain gently with your index finger. If it can make a crisp sound, it means that the porcelain embryo is delicate and well-fired. If the snapping sound is dumb, it means that the porcelain is damaged or the quality of the porcelain embryo is not good.

2, glass tableware

Clean and hygienic, generally does not contain toxic substances. But glass tableware is fragile and sometimes "moldy". This is because the glass will be eroded by water for a long time, which will produce substances harmful to human health, so it should be washed off frequently with alkaline detergent.

3. Enamel tableware

Enamel products have good mechanical strength, firmness, not easy to break, good heat resistance and can withstand a wide range of temperature changes. Smooth texture, small and not easy to be contaminated with dust, clean and durable. The disadvantage of enamel products is that they often crack and break after being hit by external forces. The outer coating of enamel products is actually a layer of enamel, which contains aluminum silicate and other substances. If it is damaged, it will be transferred to food. Therefore, when purchasing enamel tableware, it is required that the surface is smooth and flat, the enamel is uniform, the color is bright, and there is no bottom powder and embryo phenomenon.

4. Wooden tableware

The biggest advantage of bamboo and wood tableware is that it is convenient to obtain materials and has no toxic effect of chemicals. But their weakness is that they are more prone to pollution and mildew than other tableware. If you don't pay attention to disinfection, it is easy to cause intestinal infectious diseases.

5, copper tableware

Many people use copper tableware, copper pots, copper spoons, copper hot pots and so on. On the surface of copper tableware, you can often see some blue-green powder, which is called copper rust. It is an oxide of copper and is nontoxic. But for the sake of cleaning, it is best to smooth the surface of copper tableware with sandpaper before loading food.

6. Iron tableware

Generally speaking, iron tableware is non-toxic. But iron is easy to rust, and rust can cause nausea, vomiting, diarrhea, upset, loss of appetite and other diseases. In addition, it is not advisable to use iron containers for cooking oil, because oil is easy to oxidize and deteriorate when stored in iron for too long. At the same time, it is best not to cook food and drinks rich in tannin in iron containers, such as juice, brown sugar products, tea, coffee and so on.

7, aluminum tableware

Non-toxic, light and durable, and low in price, but aluminum accumulates too much in the human body, which has the effect of accelerating aging and has certain adverse effects on people's memory. Aluminum tableware is not suitable for cooking acidic and alkaline foods, nor for storing meals and salty foods for a long time.

Do not use iron and aluminum tableware together, because aluminum and iron are two metals with different chemical activities. When water exists, aluminum and iron can form chemical batteries, which will lead to more aluminum ions entering food and bring greater harm to human health.

8, alloy tableware

Alloy tableware mainly refers to tableware produced by PPS and SPS materials. PPS has the advantages of high temperature resistance, corrosion resistance, radiation resistance, flame retardancy, balanced physical and mechanical properties, excellent dimensional stability and excellent electrical properties. Alloy tableware on the market is mainly alloy chopsticks. Compared with chopsticks made of other materials, alloy chopsticks have the advantages of no deformation at high temperature, easy cleaning, no mildew, no adsorption of microorganisms such as Escherichia coli, durability and corrosion resistance. Alloy chopsticks are safe and hygienic, and will not produce harmful substances at high temperature. PPS and SPS are imported materials, so the price is slightly higher. In China, most of them are gifts from high-end hotels and alloy chopsticks made of this imported material.

9, stainless steel tableware

Beautiful, light and easy to use, corrosion-resistant and rust-free, very popular with people. Stainless steel is made of iron-chromium alloy mixed with nickel, molybdenum and other metals, so be careful not to put salt, soy sauce and vinegar for a long time, because the electrolyte in these foods will react with stainless steel for a long time, so that harmful substances will be dissolved out.

10, titanium tableware

Using the characteristics of intelligent metal titanium combined with special physical and chemical surface coloring process, it has a unique luster of gold-titanium tableware, and its texture can be comparable to that of silver tableware. Titanium tableware is the development trend of tableware materials in the future. Because of its light weight and light use, it has excellent characteristics such as non-toxic, tasteless, non-radiation, non-rust, corrosion resistance, wear resistance, good toughness and good biocompatibility. Titanium tableware is both practical and collectible, and it is a good product for you to give to your relatives and friends and use at home. It has long been favored by people from all walks of life.

1 1, amine tableware

Melamine tableware, also known as crystal melamine products, is made of melamine resin powder by heating and pressing. Because it is light, beautiful, resistant to low temperature and unbreakable, it is widely used in catering industry and children's catering industry.

Melamine tableware belongs to high polymer, MF for short, and its monomers are formaldehyde and melamine. 37% formaldehyde aqueous solution was used in the reaction, and the molar ratio of formaldehyde to melamine was 2~3. The results show that with the increase of formaldehyde dosage, the combined amount of formaldehyde also increases, and the reaction is easy to carry out. Melamine resins obtained from different hydroxymethyl melamine can be prepared by changing the amount of formaldehyde. When the pH of the reaction system is 8.5, there are fewer side reactions and the reaction is easy to control. High temperature, fast reaction speed, and little influence on formaldehyde binding capacity in the range of 54~80℃.

12, plastic tableware

Commonly used plastic tableware is basically made of polyethylene and polypropylene. This is a non-toxic plastic recognized by most national health departments. Candy boxes, tea trays, rice bowls, cold water bottles and baby bottles on the market are all made of this kind of plastic. However, polyvinyl chloride (PVC) with similar molecular structure to polyethylene is a dangerous molecule. A rare hepatic hemangioma was found, which is almost related to people who often contact PVC. So when using plastic products, we must pay attention to what the raw materials are. In the absence of a product manual at hand, it can be identified by the following methods: all plastic products that are smooth to the touch, flammable in case of fire, and have yellow flame and paraffin smell when burning are non-toxic polyethylene or polypropylene. All plastics that are sticky to the touch, not easy to burn in case of fire, have a green flame when burning, and have a choking smell are PVC, and cannot be used as food containers. Don't choose brightly colored plastic tableware. According to the test, the release amount of heavy metal elements such as lead and cadmium in some plastic tableware color patterns exceeded the standard. So try to choose colorless, odorless and without decorative patterns.

13, couple tableware

As the name implies, it is a pair of tableware, exclusive to couples. It captures the idea of seeking witness between modern lovers and design, and creates a practical, beautiful and unique tableware to express love.

14, antibacterial tableware

Also known as sterilized tableware, antibacterial agents are added to tableware raw materials, so that tableware can be sterilized without any treatment. The main material of disinfection tableware is melamine disinfection tableware. Stainless steel sterilization tableware, alloy sterilization tableware, ceramic sterilization tableware. This kind of tableware can kill bacteria on the surface of tableware by using the principle of nano-silver sterilization.

15, disinfection tableware

Refers to the tableware sterilized by special methods to kill pathogenic microorganisms. Don't choose to draw chopsticks. Paint contains many toxic substances, such as lead and cadmium.

16 disposable tableware

It is a tableware made of plastic, high foaming material, coated paper, etc., which is discarded once used.

National classification

Tableware can be divided into Chinese tableware and western tableware by country. Chinese tableware is used by ordinary people in China, such as chopsticks. The so-called western tableware is the special tableware for eating western food, which generally includes knives and forks. Due to the developed catering industry in China, hotels and restaurants are generally public tableware, which is unsanitary, so various disinfection tableware have appeared one after another, and a number of enterprises taking disinfection appliances as an example have emerged.