Rejuvenate Grout Deep Cleaner is the best way to clean grout and instantly remove grout stains and restore your grout back to its original color. Over time, everyday foot traffic or general use along with accumulation of grease, dirt, spills, food, pet stains and more make your grout dirty and dingy. Pair this even bright new formula with our grout cleaning brush and a professional grout cleaning system is in your hands. Use on any tile surface - including ceramic tile, porcelain tile or marble as the easiest way to clean grout without scrubbing for hours. The grout deep cleaner is strong enough for commercial use but gentle enough to use at home. Reward yourself and make an impact on visitors with the deep clean easy application from Rejuvenate. For best results as a grout stain remover, grout brightener and tile cleaner pour or apply with our Click n Clean Spray Mop system Rejuvenate Grout Deep Cleaner on your grout and allow 2-3 minutes to absorb. At this time, the bio-enzymatic action is working to eliminate all the deeply embedded dirt and grime from your grout lines. Now use our thin nylon grout brush and lightly agitate the grout lines.