Laundry Bluing and How to Use Bluing - The Spruce - Make ...
Make the container as airtight as possible to keep the fumes in. Ammonia evaporates very quickly and ammonia is the only substance that will remove the excess bluing. Soak for 24 hours. If the stain is not gone in 24 hours, mix a fresh ammonia solution and repeat the process. Finally, wash the clothing on a regular wash cycle with detergent only.