When washing white garments, the right water temperature depends on the fabric and the level of soiling. Mildly soiled cotton whites are usually safe in warm water of around 104°F, while delicate fabrics like silk, lace, or satin are best washed in cold water. For heavily soiled items like cotton towels, bed linens, and undergarments, hot water (130°F or higher) can be used, provided the care label recommends it.
