Disposable paper cups are used more and more widely. However, many users do not know that disposable paper cups also have a shelf life. On the morning of August 18, the reporter found that the shelf life of disposable paper cups of different materials were also different, and some paper cups simply did not have a clear production date and shelf life. In this regard, doctors remind that long-term use of expired disposable paper cups is easy to cause various diseases, which is not conducive to human health.

On the morning of August 18, the reporter saw in a supermarket on Yantai road that disposable paper cups of various brand styles were placed on the shelves. The reporter noted that many citizens in the selection, mostly focus on the price or brand, and will not care too much about the cup production date and shelf life. "Disposable cups have shelf life, and they have never been concerned." Ms. Zhao, who is buying disposable paper cups, told reporters that her family has disposable paper cups all year round, which are prepared for guests.

The reporter saw in the interview that the disposable paper cups sold in supermarkets are printed with the production date and shelf life. The shelf life of different paper cups is also different, and the shelf life of some paper cups can reach 5 years at most. Subsequently, the reporter in the city several small shops, saw that many disposable paper cups on sale were mostly packaged with plastic paper, but many of them had no production date and shelf life. "No one is looking at this. The paper cups are well packed and clean." There was no production date and shelf life printed on it, explained the owner of one store.

Will the use of expired disposable paper cups have adverse effects on human health? In this regard, Dr. Jiang of Laixi people's hospital told reporters that when people buy disposable paper cups, they must check their production date and shelf life, because expired disposable paper cups are easy to mold when stored, and if used, it is easy to cause respiratory diseases.