How do you get blue detergent stains out of white clothes?
To remove undiluted detergent or fabric softener stains, try rubbing them with a bar of soap, and washing again, or soaking them in undiluted white vinegar until the spots disappear, at least 15 minutes but no more than 30. (Vinegar is excellent at dissolving soap residue). Launder as usual, and don´t worry, any vinegar smell will wash right out. If this doesn´t work, you could try wetting the stains, and rubbing them with a liquid dish detergent designed to remove grease.
