Method 1
Check the hygiene standard number or the product labeling located on the back of the packaging. According to new national regulations, toilet paper 'must' be explicitly labeled as "Toilet Paper." Almost all major manufacturers print this label in extremely tiny text-so small that you must look very closely to spot it. If this specific label is missing, you can instead refer to the listed hygiene standard number.
Method 2
When soaked in water, inferior-quality napkins immediately disintegrate into mush; in contrast, napkins made from virgin wood pulp retain their shape even after soaking. "If a napkin falls apart or leaves residue, it indicates that its quality is substandard; it was most likely produced using recycled waste paper."
According to tests conducted by quality inspection authorities, substandard napkins often harbor various pathogens-including fungi, ;'E. coli', tuberculosis bacteria, and hepatitis viruses-which can easily trigger ailments such as enteritis, typhoid fever, dysentery, and hepatitis. Beyond the direct harm these bacteria pose to the human body, manufacturers of such products frequently add bleaching agents during production. These agents contain carcinogenic chemicals; for instance, fluorescent whitening agents often contain the heavy metal cadmium, which can damage the circulatory system and impair cognitive function.
Experts advise against using substandard napkins that crumble or leave residue. When dining out, it is recommended to bring your own handkerchief or tissues whenever possible, or simply rinse your mouth after eating. When purchasing napkins, always choose products from reputable manufacturers, and select tissues that are soft, free of impurities, and odorless.





