Is a warm cup suitable for coffee or milk tea? Yang Zonghai teaches you how to stay away from life and harm

 10:20am, 11 August 2025

Taiwan's COVID-19 epidemic is staggering, and epidemic prevention has become a part of daily life, but various poisons of life are everywhere. Especially the various plastic products commonly used, do there be plasticizers? How to use it for safety? Yang Zonghai, director of the Clinical Toxics Center and professor of Bedology at Linkou Changgeng Hospital, emphasized during his live broadcast on the Yuanqi Network fan group that not all plastic products have plasticizers, but all plastic materials cannot be heated by microwaves.

Free leftovers of hot leftovers should be removed. Modern people have a large proportion of food outside. Regardless of internal use, external belts or delivery places, they often use free washing dishes, bowls, cups, etc. In daily life, many plastic items are often used. Many people are worried that these things may contain plasticizers and may be suspected of eating poison. Yang Zonghai said that plastic products have No. 1 to 7, and not every product has plasticizers. Only No. 3 PVC (polyvinyl chloride) has plasticizers; No. 5 PP (polypropylene) is relatively safe and can withstand high temperatures to 120 to 130 degrees Celsius, but it is not suitable for microwave heating.

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The most commonly used plastic product in households is the insulated film. It is common to see that leftovers at night will be wrapped with a insulated film, or put it in a Meinai utensil utensil and put it in the refrigerator. Yan Zonghai reminds that when you take it out the next day, the insulated film should be removed and then put it in a microwave oven to heat it. The food contained in a Meinai utensil must be converted into a porcelain bowl or a glass bowl to hold it, otherwise the Menai utensil will produce melamine and easily hurt your kidneys.

Use less lipid bowls and Meinai dishes and chopsticks

Nowadays, many people will buy supermarket microwave food. Although supermarket microwave heating, the materials and microwave time used are calculated, Yang Zonghai still recommends that it is safer to use PVC, PE (polyethylene) and other plastic packaging materials, or to remove the outer packaging and put it in the microwave furnace to heat it.

Plastic material No. 6 PS (polystyrene) is also not resistant to high temperature. The most common product is charcoal. According to Zonghai, people have used it less frequently, but there are still a few noodles that are charcoal bowls, so you should avoid purchasing as much as possible. Meinai dish is also not resistant to high temperatures. It reminds people who love to eat pork to not use Meinai dish's chopsticks to fill food in hot pot soup.

Yun Zonghai emphasized that all plastic containers are not resistant to high temperatures, and it is better to use stainless steel, glass, porcelain and other materials for hot food. But you should pay attention to the colored pictures outside the porcelain so that you will not eat heavy metal.

Bottle water inside the car. High temperature will change

The most commonly used bottle water for commercially available bottle water is No. 1 PET (polyethylene paphthalate) material. Many people will put the bottle water in the car. According to Zonghai, PET is not resistant to high temperatures and is not suitable for cargoes with sometimes too high temperatures. Although PET does not dissolve plasticizers, it may have other substances, such as trace amounts of salts have been found abroad.

Creating hot coffee with warm cups. The safest and most environmentally friendly way to drink as soon as possible is to bring a warm cup yourself, but there are also doubts that "the warm cup is not suitable for coffee, milk tea and other beverages." Yang Zonghai explained that it can actually be decorated, and the key is to finish it as soon as possible. There is a term for "dangerous temperature" in medicine. It is not that you cannot use a warm-in cup to pack hot coffee and hot milk tea. The problem lies in the storage time and temperature. If you put it for too long, the temperature in the temperature in the warm-in cup drops to a dangerous temperature of 7 to 60 degrees, it is easy to cause microbial staining. When eating cooked food as soon as possible, it should not be added for a long time to avoid food poisoning.

As for cleaning the warm cup, it is recommended to use a sea cushion for the inner part of the stainless steel to avoid using a sharp brush, and do not brush too hard. If the mat is damaged, metal may be exposed. In theory, there should be no lenses, and if they are produced, they should be immediately replaced. Many people also love to use the technology sea to brush temperature bottles, cups, etc. Yan Zonghai pointed out that the technology sea is not used for dishwashing chopsticks, cups and other edible tableware, but can only be used for environmental cleaning.