After my mother-in-law passed away, I began helping my father-in-law with household chores, including laundry. I soon noticed that he always asked me to add aspirin to the washing machine. When I asked why, he simply replied, “That’s how my wife used to do it.” Curious about this unusual tradition, I began looking into whether aspirin could actually have a useful purpose in the laundry or whether it was simply an old household belief.

Aspirin, also known as acetylsalicylic acid, is best known as a pain reliever, but some people have long used it as a laundry hack. The practice is especially associated with trying to brighten white clothing and reduce stubborn stains. While it may sound unusual, the idea has been passed down through generations of homemakers who believed aspirin could help refresh fabrics.

Sweat, deodorant residue, body oils, and detergent buildup can gradually leave white clothing looking yellow or dull. Aspirin is sometimes claimed to help because of its chemical properties, which may assist in loosening certain residues when dissolved in water. However, it should not be considered a replacement for a proper laundry detergent or a guaranteed stain remover.

For anyone considering unusual laundry methods, it is wise to check the clothing care label and test any treatment on a small, hidden area first. Some traditional household tips may work in certain situations, while others are based more on personal experience than strong scientific evidence. In the end, my father-in-law’s aspirin habit may have been more than a strange routine—it was also a small reminder of the everyday traditions he had shared with his wife.