Clothes and underwear get dirty by sweat, dirt and body odours, the environment and the spots. The first thing we can do to reduce detergent is to get the wear less dirty.
By washing clothes they get worn out and their colours faded. The more aggressive the washing, the worse the clothes become. The warmer the water the better the cleaning, but only to a certain extent (some 60ºC).To extend the life of clothes; let us avoid washing them too much.
Washing with little detergent and little temperature is enough and it helps to minimize the pollution of lakes and rivers and energy consumption.
We will find more ecological detergents at specialized shops. Among the conventional detergents, it is better to choose the concentrated ones which do not contain phosphates.