Will the internal coating of the stainless steel water cup cause harm to the body?

Stainless steel water cups have experienced decades of history from the last century to the present.From the early single shape and inferior materials to the various shapes now, the materials are constantly iterated and optimized. These alone cannot satisfy the market.The function of the water cup is also changing with each passing day, making it smarter and more convenient for people's daily life.Not only that, in order to meet people's daily use needs of various stainless steel water cups, the inner wall has also begun to be coated with various materials.

Beginning in 2016, some buyers in the international market began to study adding coatings to the water cup in order to increase the buying point of the product, so some water cup production factories began to try to process some imitation ceramic effect coatings on the inner wall of the water cup.However, in 2017, a large number of refunds of orders in the international market occurred.

It is because the ceramic paint coating process is not mature, the adhesion of the coating is not enough, and it will fall off in a large area after using for a period of time or special drinks.So as of 2021, there are still a large number of stainless steel water cups with internal coating added on the market.Are these water bottle still usable? is it safe? Will the coating still fall off after a period of use?

After a large number of orders returned in the international market in 2017, these water cup factories that adopted the coating process began to reflect and began to develop new coating processes through many attempts.After a lot of experimental tests, these factories finally found that using a firing process similar to the enamel process, and using a coating similar to Teflon, the coating of the water cup liner fired at more than 180°C will no longer appear to fall off.For this reason, it has been tested up to 10,000 times. At the same time, this material satisfies various food-grade tests and is harmless to the human body.

So when you buy a coated water cup, you should ask more about the processing method, whether the firing temperature exceeds 180°C, whether it is made of Teflon-like material, etc.

Dongguan Zhanyi Commodity Technology Co., Ltd. mainly produces various types of drinking utensils such as stainless steel water cups, plastic water cups and kettles. Whether it is a stainless steel water bottle or a plastic water bottle, we can meet the proofing needs of customers, whether it is prototype proofing or mass production mass samples on the machine.Global buyers are welcome to visit our official website, and we will have professional customer service staff to provide you with services online.