I accidentally got black tea on a carpet, which has left a very visible stain. I tried cleaning the carpet with detergent, but it did not work. Does anyone have a good method for removing tea stains from a carpet?
You may find that ultraviolet light from sunlight will cause the stain to fade away on its own. If you want to hurry the process up, a variety of oxygen based bleaching agents are found in proprietary products; these work to break down the pigments in the stain, rendering it invisible
If attempting to clean the carpet using a wet solution, take care that the process doesn't cause whatever is under the carpet to become wet and stain the carpet from the other side. I once had a difficult job removing a tea stain that just seemed to grow and grow the more that I extended the cleaning patch, until I noticed that the brown coloration was being caused by the brown underlay getting wet and staining the carpet from the underside