Comment on Does it really matter if you use white or colour detergent for washing clothes in a washingmachine?

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PP_BOY_@lemmy.world ⁨6⁩ ⁨months⁩ ago

optical brightener

AKA blue dye.

The process is also called “bluing” and existed way before they made up a scientific “you have to buy this product, you can’t do this at home” name.

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