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Time： 2022-03-09 16:03:02
1. Look at the texture. The higher the purity of the tin, the more durable it is and the longer the freshness of the tea leaves.
Try to buy 99.9% pure tin. The purity of tinware affects practical value and use value. The purer the tin, the more durable and better it will be. It is used to store packaged food without producing harmful substances and oxides.
2. Look at the color. High-purity tin will be bright in color and look like silver at first glance.
Therefore, when purchasing tin ware, it is necessary to distinguish whether it is high-purity tin ware by looking at its color.
3. Look at the workmanship. The carving and hollowing out of the good tin tea cans are exquisite, and most of them are handmade. Because the hardness of the good tin is relatively soft, it also shows that the tin has high purity and good sealing performance. Low-purity tin ware is relatively hard in terms of hardness, and it is difficult to process by hand, so most of them are machined, and the sealing is not good enough.
4. In terms of price, because the "tin" element itself is also a rare element, it is the fourth rare metal after platinum, gold and silver, so the price of tin ware is generally more expensive. When purchasing tin ware, Don't try to be cheap, it's not worth the loss. Using tin tea cans to pack tea can effectively play the role of anti-oxidation, anti-high temperature, light-proof, moisture-proof and peculiar-proof.