Rinse the stained area with cold water as soon as possible
Apply a paste of baking soda and water to the stain
Let the paste sit for 30 to 60 minutes
Gently rub the fabric together or use a soft brush
Wash the item with an enzyme-based laundry detergent
Add white vinegar to the wash for stubborn stains
Soak the garment in cold water and oxygen bleach
Repeat the treatment before drying if the stain remains
Avoid using hot water until the stain is gone
Air-dry the item to prevent setting the stain