As with any stain, mustard stain removal is more successful if done immediately, dried stains are harder to remove.
Rinse the fabric in cold water and remove as much of the stain as possible.
Create a solution of:
1 teaspoon ammonia
1 pint of warm water
- Wash the fabric in the solution
- Rinse in cold water to complete the mustard stain removal process.
- Repeat as necessary until the mustard stain removal has eliminated the stain.