Method for removing sweat stains from men hats:
1. White vinegar
When washing hats, add a few drops of white vinegar to clean water, soak for ten minutes, and then wash again to remove sweat stains.
2. Taomi Water+Lemon
When washing yellowed silk clothing, you can squeeze a few drops of lemon juice into the rice washing water, soak for 30 minutes, and then wash it in the normal way.
3. Eating baking soda
Dissolve approximately 25 grams of baking soda in 500 grams of hot water, shake well to completely dissolve, and let it cool to below 40 degrees Celsius. Soak the sweaty hat to remove any sweat stains