Sweat is known to leave unsightly yellow stains on clothing that no amount of machine washing can remove.
But manual cleaning of things using 9% white vinegar will cope with the task with flying colors.
Soak a cotton swab in acid, wipe the stains with it and leave it on the clothes for a while.
As a rule, 2-3 hours is enough, but if the stains are old, it may take longer, up to a whole night.
Please note: this method is only suitable for use on black or colored clothing, but even in this case it is worth testing the effect of the product on an inconspicuous area.
If you have to deal with white items, try using baking soda, which can not only clean the fabric, but also eliminate unpleasant odors.
So, combine 150 ml of water and 4 tablespoons of soda and apply the resulting paste to the area with the stain.
Once the mixture has dried, rinse the item to remove any remaining cleaning solution.
