The veneers are made from a nonporous material so they are very stain resistant. As long as you avoid abrasive substances like toothpaste, they shouldn’t stain. Tea, wine, coffee, and tobacco will all appear to stain your Press On Veneers/BIL Veneers just as they stain teeth. Cleaning removable dental veneers is a snap, however. Always use a soft cloth to wipe them clean and soak them in denture cleaner daily.