When it comes to cups that are harmful to the human body, most people think of plastic cups first, but there are many types of plastics, and not all plastic cups are harmful to the human body.
Most plastic cups are not resistant to high temperature, such as polystyrene, polyethylene terephthalate, etc. Plastic cups produced with the above materials to hold hot drinks will produce harmful substances such as styrene monomer. However, it is unscientific to talk about toxicity without talking about dosage. The migration amount of styrene monomer mainly depends on the temperature of contact, the level of lipid content in the beverage and the time of packaging.
The migration of styrene monomer generally does not exceed 0.025% of its content. If you want to reach the harmful amount of styrene monomer, unless you drink hundreds of cups of hot drinks a day, it will not affect the body.
The space cup made of epoxy resin will release its monomer bisphenol A under high temperature or light conditions, which is harmful to the human body, so most baby bottles are not made of epoxy resin now.
Some people think that disposable paper cups are also harmful to the human body. In fact, as long as the disposable paper cups are not used to hold overheated drinks for a long time, there will not be too much problem.
Will the stainless steel cup exceed the heavy metal standard? In order to prevent rust, stainless steel cups have added more than ten percent of nickel, manganese, and chromium elements to form low-carbon steel. These elements are harmful to the human body, but high-quality stainless steel cups are in line with national regulations, and the amount of chromium migration It will not exceed 0.4 mg/square decimeter. Even if it is in an acidic environment for a long time, the migration of chromium ions will not exceed the standard.
Therefore, all kinds of cups are safe to use within a reasonable range. It is very important to use different cups for different liquids, and pay special attention to the temperature.
