Restaurants keep their linens exceptionally white through a meticulous cleaning process that involves several steps. First, they sort the linens based on color and level of dirtiness before washing. They then use commercial-grade laundry detergents, which are more potent than regular household detergents, to effectively remove stains and maintain the bright white color. In addition, they often add bleach or other whitening agents to the wash cycle to boost the whiteness of the linens. After washing, they dry the linens at a precise temperature to avoid shrinkage or color fading. Finally, they iron the linens to remove wrinkles and enhance their crisp appearance. This thorough process, often carried out by professional linen services, ensures that restaurant linens always look fresh, clean, and brilliantly white.