stain on sheet--need ideas please
I am a bed and breakfast owner so sheets must be stain free. This particular stain is round one about 3 inches in diameter on a cotton flannel sheet. It is just slightly darker than the sheet which is off white. I've tried everything in my book and it is still there: Zout, peroxide, pouring detergent directly on it, rust remover, perky spotter (for carpets), vinegar, bleach pen, Dawn detergent. Any ideas please?
Thanks so much.