1. Silver tableware:

Silver tableware, silver in the water ionized extremely small amounts of silver ions, has a bactericidal effect, in many costume films, people also use a silver needle to check whether the food is toxic. However, silver tableware is a luxury in the end, and copper bowls have a similar effect. Aluminum bowl is best not to use, use more careful intelligence decline.

2, wooden tableware:

First of all, wood tableware is a pure natural product, rich resources can also be raw, a wide range of materials. And wood, which is 100% biodegradable. With the non-biodegradability of plastic tableware, and the luxury of silver tableware, wood tableware is a safe and affordable option. And wooden tableware can also be made out of any shape of hardwood, such as birch and maple.

However, wood is an absorbent, porous material that is soaked in moisture and bacteria. For this reason, wooden tableware is unsanitary and not suitable for long-term use, and wooden tableware made of certain types of wood, such as cedar or cypress, may be favored by strong odors and oily resins. Wood tableware is a by-product of wood built from wood, imported wood or recycled wood that may be exposed to chemicals during the washing or manufacturing process. Also, the wooden tableware is smoothed with sandpaper for safe use. Wood dries, however, it may develop fragments or cracks if stored improperly as a safety hazard, and the risk of fragmentation is indeed rare. But when comparing wood tableware, silver and plastic products are much safer.

Here we talk about the harm of disposable chopsticks, because in many fast food restaurants, even restaurants, disposable chopsticks are the most common, and it is also very harmful to us:

(1) Damage respiratory function: disposable chopsticks are fumigated with sulfur during the production process, and SO2 will be released in the heat during use, eroding respiratory mucosa;

2, damage the digestive tract function: disposable chopsticks in the production process that bleaching with hydrogen peroxide, hydrogen peroxide has a strong corrosive, on the mouth. Esophagus index finger gastrointestinal corrosion; The use of talcum powder in the polishing process, cleaning is not clean, slowly accumulate in the human body, will make people suffer from gallstones;

3, bacterial infection: sterilized disposable chopsticks shelf life is up to 4 months, once the shelf life is likely to bring yellow staphylococcus, Escherichia coli and liver disease;

(4) Disposable chopsticks are likely to produce the "greenhouse effect", because of the vicious cycle, fewer trees, CO2 will increase, the atmosphere will thicken, the heat is difficult to open, resulting in the "greenhouse effect".

3. Bamboo tableware:

The most used is bamboo chopsticks, economic and practical, do not waste wood, but should be kept dry, otherwise easy to mold, especially in the south, in the rainy and humid season, and should pay attention to wash and put in a ventilated place.

4, glass tableware:

Clean and hygienic, generally does not contain toxic substances. But glass tableware is fragile and sometimes "moldy." This is because the glass is eroded by water for a long time, and the sodium silicate in the glass reacts with carbon dioxide in the air to produce white carbonate crystals, which is harmful to the health of the hot body and should be washed with alkaline detergent frequently.

5, iron tableware:

Generally speaking, iron tableware is non-toxic. However, it should be noted that iron is easy to rust, and rust can cause nausea, vomiting, diarrhea, upset, poor appetite and other diseases; In addition, it is not appropriate to use iron containers for cooking oil, because oil is easy to oxidize and deteriorate when stored in iron for too long.

6, stainless steel tableware:

Beautiful and generous, lightweight and durable, abrasion resistance and no rust, popular among people. Stainless steel is made of iron chromium alloy mixed with nickel, molybdenum, titanium, manganese and other metals, some of the metal is harmful to the human body, so it should be noted when using, do not put salt, soy sauce, vinegar, etc., because the electrolytes in these foods will react with long-term contact with stainless steel, so that harmful substances are dissolved. Do not cook Chinese medicine with stainless steel tableware, because Chinese medicine contains a variety of alkaloids, organic acids and other components, after heating with the ingredients in stainless steel, will make the drug ineffective, and some even produce toxic compounds.

7, enamel tableware:

Resistant to acid and alkali corrosion, stable chemical substances. But enamel dishes are made from iron products burned on enamel, which contains harmful compounds such as lead silicate.

8, plastic tableware:

Its advantages are light, beautiful, not easy to break, cheap, loved by people. However, plastic tableware is made of polyvinyl chloride and other polymer materials with additives, if the removal of monomer vinyl chloride is not clean or improper use of additives, it will also harm human health. The plastic tableware is made of polyethylene, polypropylene and melamine. Melamine plastic is a thermosetting plastic, it is a melamine formaldehyde resin as the main raw material, adding an appropriate amount of pulp fiber filler and coloring agent and other auxiliary materials made of non-toxic, tasteless, acid and alkali resistant, now on the market for the production of children's tableware.

9. Ceramic tableware:

A big Chinese invention, most used. The production method of ceramic tableware is divided into three kinds: on glaze color, under glaze color and glaze color. So what's the difference between these three? Why is the surface of porcelain smooth and bright? This is because it is covered with a glaze. As the name suggests, the glaze color is the painted pattern attached to the glaze surface, the glaze color is the painted pattern into the middle of the glaze, and the underglaze color is the painted pattern on the ceramic matrix under the glaze. We see the same pattern painted on the tableware surface, some smooth and solid, some have a prominent sense, touch with the hand also has an obvious sense of unevenness, the obvious sense of unevenness is the basic judgment is glaze color. Glaze color is the pattern painted on the burned porcelain matrix, and then fixed through high temperature heating, if the process is not good, glaze color tableware used for a period of time after the pattern wear or peeling phenomenon. And some glaze pigments contain harmful metals such as lead and cadmium. These harmful elements are easy to dissolve when cooking acidic food, which is harmful to health, so when purchasing daily porcelain, it is best to buy daily porcelain with advanced technology and environmental protection pigments.