Sweat on Cotton/Polyester

How to Remove Sweat Stains from Hats

Yellow sweat lines on your favorite cap? Here is the fix.

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Required Supplies

  • Common Household Items

The Logic Verdict

Shampoo. Sweat is body oil. Shampoo is made for body oil.

The Science

Sweat contains salts and oils.

Step-by-Step Removal

  1. Spot Clean: Apply shampoo to the sweat band.
  2. Scrub: Use a toothbrush to scrub the yellow line.
  3. Soak: Soak the whole hat in warm water with a little laundry detergent for 30 mins.
  4. Rinse & Air Dry: Stuff with a towel to keep shape.

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