Aspirin in the washing machine: how this acid dissolves sweat stains without damaging your white fabrics

The Transmission of Forgotten Knowledge

After the death of her mother-in-law, the author began to help her father-in-law with daily tasks. One day, as she was loading laundry into the machine, he handed her a few white aspirin tablets, whispering: “Put them in. That’s how she kept everything so white.”