How to identify the quality of hotel towels?

Pure cotton hotel towels have good water absorption. Take a cotton towel and gently put it into the water, which absorbs water quickly and sinks quickly. After taking it out, wring it out and hang it vertically without water drops, making it pure cotton. Polyester towels absorb water slowly, and after being taken out and wrung dry, water drops fall vertically.

2. Appearance: pure cotton towels have good whiteness and pure color, while polyester towels have poor whiteness and dark color, which are easy to distinguish together.

3. Burning method: Take a fiber from different towels and light it with a lighter. Pure cotton has a natural gray smell. After blowing out the burner, Mars will not go out. If the smoke is slightly white and contains polyester, it will burn quickly and smell. After blowing out the burner, it will go out immediately.

4. The most fundamental way is to take a few fibers and put them under purple light to make the color contain polyester like banknotes.