The advantages and disadvantages of disposable paper cups can be identified by "seeing, smelling and touching".
Look: besides the name, address and date of production on the package, you should also look at the light. If there is blue light or impurities, you'd better not buy them.
Smell: there is no pungent smell;
Touch: it feels especially soft and may be a poor quality product. Tip: when using disposable paper cups, it is best to use boiling water first, so that the cups in the full volatile of harmful substances.