Washing your clothes in cold water does more than save energy and money on your utility bill: It also preserves your clothes. The fibers of your clothing last longer when they're washed in cold water; they actually deteriorate when washed in hot water. The only time you really need to wash in hot water is if you need to remove stubborn stains that are oil-based, or to disinfect items like hand towels and bedding. Otherwise, 9 out of 10 washes on average should be done in cold water.
ANDREWS MCMEEL SYNDICATION