1. Judge the quality of the clean cloth
Can be 2 pieces of clean cloth rubbing each other, easy to chip off the clean cloth is not recommended to buy, if the particles of the clean cloth fall off in the cleaning process, stick to the washed dishes, it is likely to eat it accidentally
2. Be careful with colors
Dyes may contain chromium and lead and other heavy metals, or even chemicals with high carcinogenicity, so a variety of colors and patterns of the cloth, it is necessary to pay attention to whether labeled as qualified dyes, it is suggested not to be attracted by gorgeous colors, the simpler the better.