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Is the plastic stopper of the thermos poisonous? Is it safe? Is the stopper of the bottle cap plasti

There are two kinds of common plugs for thermos bottles in our home, plastic or wood. Is plastic toxic? Can it be used for a long time? Plastics are chemical polymers with toxic additives. These additives will emit when they are turned off by heat and light, which is why plastics will become brittle and fragile when exposed to heat for a long time. Of course, these additives are few and will not cause too much harm to the human body, but they are different when used for a long time. A little makes a lot.

In addition, we should also consider the type of plastic. If it is seriously produced, there are food grade plastics, which are also safe and non-toxic.