When to Use Cold Water: Use cold water (80°F) for things that are fragile or have dark or bright colors that bleed. Cold water is a great option for people who care about the environment and want to save energy. If you like to wash your clothes in cold water, you might need to soak or treat them first if they are very dirty.
Use cold water on washable silk, swimwear, sportswear, and delicate lingerie with dark or bright colors that may bleed or fade (80 degrees F; 27 degrees C). Woolens that can be cleaned shrink less when they are washed in cold water. Even clothes that aren’t too dirty are fine.
Even though detergents made for cold water may not work as well when the temperature of the water in the washer drops below 40 degrees because it is cold outside, this helps keep dark clothes from fading. Don’t use the cold-water wash setting if you live somewhere that gets very cold in the winter. Instead, wash with warm water and then rinse with cold water.
You might think that the best way to clean and disinfect clothes is to wash them in warm or hot water, but this is not always the case. It is true that you might want to use warm or hot water to wash the clothes of a sick person or if you live in a cold area where the water temperature can drop to 40 degrees or lower in the winter, making detergents less effective. If none of these things are true, wash dark clothes in cold water. “Things can fade faster if you wash them in hot water and dry them in a dryer. Use cold water instead of hot “He claims.
Towels and bedding: Because we use towels and sheets so often, they get dirty very quickly. To get rid of bacteria and mold, wash towels, sheets, and anything else a sick person used at a temperature between warm and hot. Even though 40 degrees is fine for washing towels and sheets, a wash at 60 degrees will kill more germs. If you change your sheets and towels once a week, you may help keep them clean and fresh.