A coffee stain is one of the most difficult to remove from any surface. Removing coffee from carpet can be extremely difficult. With the combination of a little elbow grease and a steam cleaner, the stain can be completely removed. It is very important to remember that using cold water is essential to the removal of a coffee stain, as hot water will set the stain. Always test an inconspicuous area of the carpet before applying any product to the stain. This will insure that there will not be any removal of dye from the carpet fibers.
Step 1 - Keep Stain from Setting
If you can’t completely remove the stain immediately, blot up as much of the liquid as possible with a clean white rag. Sprinkle some salt over the affected area to absorb as much of the coffee as possible. The key is to avoid the coffee stain from seeping through to the underlayment. If the coffee absorbs into the padding, it will continue to rise up and re-stain the carpet.
Step 2 - Use Steam Cleaner
Fill the steamer with cold water. Mix together a 50/50 solution of cold water and white vinegar. Pour mixture into a clean spray bottle. Spray vinegar/water solution onto the coffee stain. Blot excess moisture with a clean white rag. If it appears that the stain is gone, re-fill the steam cleaner with fresh cold water. Use the cleaner to remove excess vinegar. Both coffee and vinegar are acidic. Since vinegar is more acidic than coffee, by placing it on the coffee stain, it will break the bond that coffee has formed on the carpet fibers.
Step 3 - Remove Remaining Stain
If, after Step 2, some staining remains, use hydrogen peroxide on the area. Pour the hydrogen peroxide directly on the stain. With your hands, rub the hydrogen peroxide into the carpet fibers with a massaging motion. Allow the carpet to completely dry. As the hydrogen peroxide turns to water with sun exposure, there is no need for further steam cleaning. Repeat soaking and massaging the area with hydrogen peroxide until the coffee stain is gone when the carpet is completely dry.
Step 4 - More Tricks
Squirt some white shaving cream onto the stain. Massage fibers individually to remove coffee. Either steam residue with cold water or use a clean wet rag to blot up remaining shaving cream. Make a paste of baking soda and water (consistency of toothpaste). Apply the paste onto the stain. Allow to dry completely and vacuum.
Step 5 - What not to Do
Never use hot water on coffee stains as it will serve to set the stain permanently. Always use a blotting action, as rubbing will open the fibers and will make the stain worse. Never use soap on carpet. Soap will always leave a residue that will attract dirt to the carpet fibers. Never push down on the fibers, as this will force the stain deeper into the carpet. Always vacuum after a coffee stain removal is complete to restore carpet’s fibers to normal.