2022-05-05
There are many kinds of cups, with various materials and different adaptation places. Plastic cup is a kind of cup that is often used in people's life. It plays a lot of roles in our life. But we still have many aspects to pay attention to when buying plastic cups. In fact, based on the sound national standards and strict crackdown on counterfeiting, the way to identify plastic cups is to look at the label and understand the meaning of each paragraph inside.
Disposable plastic cup
1. If the plastic cup you buy needs heated water, it depends on your general needs and whether it meets your needs. Generally speaking, the temperature of boiling water after pouring into the plastic water cup is 96 degrees. So I'm also curious about how some cups are tested for 120 degrees (isn't the water vaporized?). If the nominal temperature resistance of the cup is 100 degrees, you can fill the water and heat it in a microwave oven. But if you add a plate of braised meat with oil soup and you say you want to heat it in the microwave, I can only ha ha. The oil temperature can reach above 200C. Do you think the plastic cup is affected?
2. Safety
Mainly depends on the material. Generally speaking, domestic PC and PP are common choices. In the past 10 years, tritan, a new material in major developed countries, has quickly replaced PC as the main material of plastic cups because it does not contain bisphenol hormones. Due to the security concerns of PC, it is difficult for you to buy PC cup in Europe, America, Japan and South Korea. There are also many tritan lunch boxes abroad, so the safety of microwave heating is OK as long as it does not exceed the tolerance temperature of plastic.
3. Drop. The main advantage of plastic cup over glass cup is fall resistance, but the fall resistance is also different in different plastic cups. At QB / T
In the national standard 4049-2010, drop performance is defined as category A, B and C. Class C is not required (so it's reasonable to break when touched), class B is a 50cm wooden floor falling through, and class A is a 1.5m full of water cement falling. In the current market, there are not many class a falls. Of course, it also depends on your personal needs.
4. Appearance, permeability and smell - key points need to be highlighted. The above items, as long as they are the products of regular manufacturers, can be seen at a glance after reading the label. But the appearance, permeability and smell are actually the key to the conscience of the manufacturer. In short, if more recycled materials are added, the black spots will increase and the permeability will decrease. The smell of plastic cups generally comes from soft rubber (sealing strip) materials. The quality of soft rubber materials has something to do with the smell. If you see many tea bags in the water cup packaging, you will know what the manufacturer is bothered to cover.