I was wondering about the washing of period panties in only 30 deg celsius? Do they really come clean or the pot of bacteria? I can’t find any info on web. Normally underwear is washed in 60.
I know people who wash their reusable items (panties, cloth pads, inter-labial pads, and such) by hand in cold water. Some people soak their items in a diluted mix of water and peroxide or white vinegar to sanitize them and then wash them as regular.