We often talk about cancer prevention, but we don't know that we should pay attention to drinking water. Many people like to use disposable paper cups to drink water. They think that such a clean and hygienic cup actually contains unknown substances, especially unqualified cups, which are more likely to have adverse effects on the body. Which cups are carcinogenic? Let's take a look at them.
1. Disposable paper cups or hidden potential carcinogens. Disposable paper cups only look hygienic and convenient. In fact, the qualified rate of products can not be judged, whether they are clean and hygienic, and can not be identified with the naked eye. From the point of view of environmental protection, disposable cups should be used as little as possible. Some paper cup manufacturers add a lot of fluorescent whitening agents to make the cup look whiter. It is this fluorescent substance that can mutate cells and become a potential carcinogenic factor once it enters the human body; secondly, the unqualified cups are usually very soft, easy to deform after pouring water, and some cups are poor in sealing, the bottom of the cup is easy to seep water, which makes hot water scald hands easily; moreover, when you touch the inside of the cup with your hand, you can feel the top. With fine powder, the touch of the finger will turn white, which is a typical inferior paper cup.
2. Plastic water bottles are the easiest to hide dirt. Plastic water bottles should also be unpopular. Because plasticizers are often added to plastics, which contain some toxic chemicals, when hot water or boiling water is filled in plastic water bottles, toxic chemicals can easily dilute into water, and the internal micro-structure of plastics has many holes, which hide dirt, and it is easy to breed bacteria if it is not cleaned properly. Therefore, when choosing plastic water bottles, it is necessary to choose water cups made of edible grade plastics that meet the national standards.
3. Metal water bottle. Metal water bottles, such as stainless steel, are usually stable, but they may decompose in acidic environment. It is not safe to drink acidic drinks such as coffee and orange juice.
Glass water bottle is the first choice for drinking water. It is not only safe in material, high temperature resistance, but also easy to clean.
