How to Get Sweat Stains Out of Clothes | Lyrebird Laundromat
Introduction
Few laundry problems are as annoying as sweat stains. The yellow marks you see under the arms of shirts aren’t just from sweat—they come from a reaction between antiperspirant aluminium compounds and the proteins in sweat. Over time, this build-up can leave clothes discoloured and smelly. If not treated early, these stains can become stubborn and harder to remove with regular washing. Using the right pre-treatment methods, suitable detergents, and proper washing techniques can help break down residue, restore fabric brightness, and keep your clothes looking and smelling fresh.
The good news? With the right pre-treatment and wash routine, you can restore freshness and keep your clothes looking sharp, clean, and well-maintained every time.
Step 1: Pre-Treat the Stain
Start with a quick paste treatment:
- Mix 3 parts baking soda to 1 part water.
- Apply directly to the stained area.
- Let sit for 20 minutes before rinsing.
Baking soda helps break down the stain and neutralise odour at the same time.
Step 2: Soak with Vinegar
- Fill a basin with warm water.
- Add 1 cup of white vinegar.
- Soak the garment for 30 minutes.
Vinegar loosens the chemical bond in sweat stains and tackles bacteria that cause odour.
Step 3: Wash in Cold Water
- Use a cold wash cycle with mild detergent.
- Avoid hot water—heat can set stains permanently.
At Lyrebird Laundromat, our Speed Queen washers with auto-dosing detergent ensure the right balance for fabric care and stain removal.
Step 4: Air-Dry First
- Always air-dry before using a dryer.
- Heat from tumble drying can “lock in” stains that haven’t fully lifted.
Once you’re sure the stain is gone, you can safely use a medium dryer setting.
Step 5: For Lingering Odours
Sometimes sweat smells remain even after a wash.
To banish them:
To banish them:
- Soak again in vinegar for 30 minutes.
- Try an enzymatic cleaner (available at most supermarkets) to break down proteins and oils in sweat.
- Sun-dry outdoors when possible—UV light is a natural odour fighter.
Prevention Tips
- Switch to aluminium-free deodorants to reduce yellowing.
- Let deodorant fully dry before dressing.
- Use undershirts to protect outer layers from sweat build-up.