How to distinguish stainless steel kitchen utensils?

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Update time : 2017-01-03 17:40:27
A variety of stainless steel kitchenware are sold on the market. How to identify and find a safe, suitable one to use? In addition to the brand, appearance and touch, check the product label is the most important.
First, we should understand the material of the product we use. Currently on the market, the sale of products are common stainless steel knife, fork, spoon, bowl, pot, strainer and tank of food processing project. If in accordance with the stainless steel material classified, generally according to the organization structure can be divided into austenitic stainless steel, ferritic stainless steel, austenitic-ferritic stainless steel and martensitic stainless steel. The corrosion resistance and hygienic safety performance of each material are also different. From the four types of stainless steel characteristics, the strength and hardness of martensitic stainless steel are higher than the other three types. But the resist corrosion was lower thanthe other three types. According to the national standard, tableware and food processing project can be used martensitic stainless steel, stainless steel containers and other products should be select for the other three types stainless steel. This means that the food storage containers and food processing machinery should be used austenitic stainless steel, and the tableware should choose the martensitic stainless steel.
Second, we must carefully observe the product packaging and the various certificates, certificate number. One is pay attention to the physical and packaging is consistent with the description of the content; Two is to check whether the product has a product quality certification, QS tag production license and license number, and the certificate number issued by GB or other national certification authorities; Three is whether the product has a Chinese product name, the name and address of the manufacturer; Four is whether the product specifications, grade, main component name and content, etc. Indicate on the packaging or instructions; Five is whether there is a number of packaging or the correct operation instructions tips of the cleaning way; Six is due to improper use, easy to cause damage to the product itself or may endanger the personal, property safety products, there should be a warning signs or warning instructions in Chinese. The national standard of food safety in our country, gb9684-2011 is also given a more specific labeling requirements of stainless steel kitchen utensils. In the product or the less sales package should be marked "used for food contact"; and identify stainless steel type on the product or less sales package.
Finally, some of the labels will be directly marked on the model of the stainless steel, it can also be used as a basis for judging the quality of the product. In general, higher prices, better quality of stainless steel products model is 304, relatively speaking, the 202 series is worse.