Try to buy products of regular brands, and don’t try to buy Sanwu products cheaply.
Observe the paper cup to see if there is deformation, mildew, and smell to see if there is a strange smell.
To read the product information, you must have the “QS” sign, make sure the material (paraffin or PE) and the applicable temperature, and do not exceed its applicable range.
For paper cups, there should be no printed pattern within 15mm from the cup mouth to the cup body and 10mm from the cup bottom to the cup body, because the cup mouth will touch the lips, and the cup bottom part will contact with the inner wall of the cup when the cup is folded, and then the graphite at the printed part is easy to fall off, which is not friendly to health.
