Can clothes be washed with cold water? What guarantees cleanliness?

Researchers at the University of Leeds, Britain, found that clothes washed at 25 degrees Celsius for half an hour retain their colors for a longer period and lose less fine threads in the wastewater discharged by washing machines.

The British Guardian newspaper considered that this result seems logical, as detergent manufacturers and organizations concerned with environmental affairs have always advised consumers to set their washing machines at 30 degrees Celsius.

She considered that reducing the temperature to 25 degrees Celsius is just a simple adjustment, and she asked: Can clothes really come out clean after washing at that temperature and in a short wash cycle?

Fine color and thread test
Lucy Cotton, who headed the research team, says they set the water temperature at 25 ° C in a cold wash cycle in the washers they did their experiments with.

The researchers assert that they stood on a smaller amount of colors and fine strands wasted from a variety of clothes in the water washed by the washing machines compared to washing clothes at 40 degrees Celsius. Note that the clothes were not dirty when inserted into the washing machines, but the discharge of fine threads and colors was measured in the wastewater, according to the Guardian.

"We were not running a test to determine the cleanliness of the clothes. One of the useful things in this study is that it gives detergent manufacturers the responsibility to research this aspect," she added. She asked if these manufacturers could make the clothes come out clean in a quick wash in cold water.

For its part, the American "Procter & Gamble" company conducted a test on its products to verify its effectiveness and its ability to remove stains at a temperature of 20 degrees Celsius, while the Witch magazine discovered that the olive oil stain is the only one that cannot be removed in a wash at this degree (20 degrees). Degrees) compared to clothes washed at 40 degrees.