Do a dry stain treatment by pouring a small amount of.

Cleaning hats with baking soda. Let the hat sit for. Vinegar and baking soda to clean an old hat. Once you have removed the baking soda/dish soap mix then you can wash the baseball cap.

Fill back up the sink with warm water and add a small amount. Using baking soda and vinegar, you can also get the gunk out of your drain while cleaning the sink. Just pour the vinegar and baking soda into your drain and leave it for ten.

Make a sweat stain removal paste. Wash and rinse the baseball cap. As the sink fills with water, add 1 cup of hydrogen peroxide, 1 tablespoon of.

In a small bowl, make a paste using 4 tablespoons of baking soda and a quarter cup of water. Let the reaction happen and wait for 2 hours. The hat should be dried quickly, but don’t place it directly in the sun, as this can result in yellowing.

How to get stubborn sweat stains out the hats 1. Sprinkle some absorbent powder similar to the color of your hat to avoid any discoloring. Hot water causes wool to shrink so the best way to avoid this is to use lukewarm water.

Add some borax to the water and submerge your hat. Make a thin paste of baking. Soak the white hat to the soapy water.