Leave the stain remover for up to.

How to remove salt stains from hats. Place your baseball hat in a sink. Test clean a small area underneath the brim. Washing a golf hat with the dishwasher is another popular way to remove sweat stains from golf hats and caps.

Summer activities leave your favorite hat with ugly sweat stains? Submerge the hat in the sudsy water by swirling it around a few times, which will help the water and detergent to penetrate the fibers of the hat. Try not to use a detergent with bleach or a bleach.

Rinse and wash as directed. Use a toothbrush to apply the paste to the sweat. Be sure to clean up all the baking soda.

First, check your cap's tag to find the washing instructions. Dip a white (do not use colored rags) microfiber cloth into mild, soapy water. Use a spoon to stir the mixture into a paste.

Gently scrub in a circular motion. If there aren't any, mix warm water with a mild dishwashing or laundry detergent. The type of hat you have will often determine the method for getting rid of the sweat stain.

Here is how to clean sweat stains from your hat and looking good as new. Don’t scrub too vigorously as this can wear and break the hat’s material. Mix a paste with baking soda and water.