BeatsAll Grout and Tile Cleaner Biodegradable, Non-Etching, Professional Strength 32oz Clean and restores grout and tile to its original appearance. Use on grout, ceramic, porcelain, tile, granite, slate, travertine, limestone, non-polish marble, concrete, and masonry. This unique and exclusive formula is a real-time saver. It is an acid-based cleaner that has a special inhibitor that allows this incredible formula to be stronger and at the same time safe to use. BeatsAll is earth-friendly and safe for our environment. The product has been engineered for maximum strength. It will not etch the tile and will restore the grout to its original color. Immediate results Ease of use No Etching Safe to use on all colors of grout