Laundry symbols are a guide to the best way to care for your clothes. ... the number 30 indicates a cold-water wash, 40 indicates a warm-water wash, and 50 indicates a hot-water wash.

The dots inside that tub symbol indicate how cold the water should be. One dot means it should be washed cold, two dots mean wash warm, and three dots mean wash hot.

The dots inside that tub symbol indicate how cold the water should be. One dot means it should be washed cold, two dots mean wash warm, and three dots mean wash hot.