At present, there are two kinds of disposable water cup on the market, one is disposable plastic cup, the other is disposable paper cup. Disposable plastic cup contains micro toxin PVC, which smells bad when it is filled with boiling water. Therefore, more consumers are willing to choose disposable paper cup. However, recently, when interviewing Guo Lin, an expert from a nutritionist training institution, the relevant information shows that disposable paper cup is not "omnipotent", but also divided into cold drink cup and hot drink cup.