Protein family: cold water first
How to get sweat on a ball cap out
Sweat and oil soak the band and leave salt lines.
Do this first
Hand wash in cool water with enzyme detergent
Fresh stain
- Hand wash in cool water with enzyme detergent
- Scrub the band with an old toothbrush
- Rinse
- Air dry on a bowl to keep the shape
Dried or old
- Oxygen soak for the band if colourfast
- Fabric care
- Cardboard brims: don't soak.
- Time
- 20 min
- How to tell
- Look: white salt lines, yellow band; Feel: stiff; Smell: sweaty
Where this fix comes from
We check every fix against these published guides. We do not run a test lab of our own.
Before you start
- Test on a hidden seam first.
- Never mix cleaners.
- Keep it out of the dryer until the stain is gone.