Wash dark clothes with other dark clothes in cold water to keep their natural colors and keep them from bleeding onto lighter clothes (60 to 80 degrees).
Do you use hot or cold water to wash your clothes? Laundry experts say that this is a matter of personal preference, but there are a few things to think about. One thing that will affect how well stains can be cleaned is the temperature of the water. Hot water makes it easier to get rid of stains and dirt because it loosens the fibers of the fabric. Because the cloth is stiffer when it’s cold, these particles are less likely to get out. No matter how hot or cold the water is, the chemicals in laundry detergent help get rid of dirt.
Use cold or tepid (room temperature) water to wash wool and other things that are easy to damage. Even though you can wash anything that can be washed with cold water, we don’t recommend it because cold water doesn’t clean as well. Remember that these solutions only work when heated, so neither bleach alternatives nor oxygenated bleaching methods will work in cold water.
It is suggested that you separate your black clothes from the rest of your laundry first so that you can wash all of your dark or black clothes at once. If you wash your clothes in cold water, they won’t fade as much.