Do plastic water cups have a shelf life?(first)

Hello everyone, "Dong Dong Talks about Cups" is here. Today, the editor brings new content about plastic water cups to share with you. http://www.zhanyict.com/en/ProductsDetail-VB-10235.htmlI hope you like it. Because plastic water cups are light and durable, especially in summer, many friends will buy and use plastic water cups to meet their drinking needs. But there is a question that I don’t know if any friends are paying attention to. Do plastic water cups have a shelf life?

Some of the plastic products we buy in our daily lives have standard production dates and shelf lives marked on them. Do plastic water cups have a shelf life? Before the editor answers and explains in detail, do you also think about whether plastic water cups have a shelf life? If so, how long is the shelf life? http://www.zhanyict.com/en/ProductsDetail-VB-10235.htmlCan plastic water cups that have passed the shelf life still be used?

I have roughly counted and found that I have written and published more than 300 articles about plastic water cups in recent years. However, among all the replies I received, no one was concerned about whether plastic water cups have a shelf life, or whether they can still be used after one or two years. Everyone is mainly concerned about whether the materials are safe. http://www.zhanyict.com/en/ProductsDetail-VB-10235.htmlDo plastic water cups have a shelf life?

At present, administrative agencies or international authoritative organizations have not proposed that plastic water cups should be clearly marked with a shelf life when they are sold. Therefore, when you buy plastic water cups, you can't find any notes about the shelf life of the water cups. http://www.zhanyict.com/en/ProductsDetail-VB-10235.htmlWhy is there no shelf life requirement? Does the lack of administrative agencies' requirements mean that plastic water cups do not have a shelf life issue?

Let me first talk about why there is no shelf life requirement for plastic water cups. At present, the materials used to produce plastic water cups on the market are mainly polypropylene (PP), polyethylene terephthalate (PET), polystyrene (PS), polycarbonate (PC), tritan and other materials. These materials have an obvious feature of strong wear resistance and high anti-aging performance. http://www.zhanyict.com/en/ProductsDetail-VB-10235.htmlUnder normal use, water cups made of these materials have a long service life. Under good usage habits, they can usually be used for 1-2 years, even if they are not damaged by corrosion, exposure to the sun, bumps and other inducements.

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