Hotel cotton white sheets are yellow, how to go yellow is safe and effective?

Hello! In fact, your situation is very common. The sheets will turn yellow after use, because they are stained with sweat and have been used for a long time.

Are the sheets in your hotel pure white? Soak in 84 disinfectant after washing (washing powder water must be cleaned). If the effect is not good, put hot water and 84 disinfectant in the basin. If it still doesn't work, send someone to the waterworks to get some bleaching powder.