Yes, salt can stain suede. If you get salt on your suede boots, it's important to clean them off quickly and properly to avoid damaging the material. Here are some tips on how to clean the salt off suede boots: ·        Remove any excess salt with a soft brush or cloth. ·        Combine equal parts water and vinegar and soak a cloth in it and then dab the soiled area with this moist cloth. ·        Allow the vinegar mixture to settle for a few minutes before using a clean cloth to blot it dry. ·        Repeat until the stain is removed. ·        Once the stain is removed, protect your boots with a waterproof spray. This will help repel water and prevent salt stains in the future.