How to Get Coffee Stains Out of Carpet
Coffee stains on carpet are caused by tannins (plant compounds) that bond to carpet fibres. The good news: coffee stains are water-soluble and respond well to treatment — especially if treated promptly. The key is to never rub, only blot, and to use cold water (hot water sets tannin stains permanently).
Fresh Coffee Stains (Still Wet)
- Blot immediately — use a clean white cloth or paper towels to absorb as much liquid as possible. Press firmly and use clean sections as each absorbs liquid. Work from the outside edge of the stain inward to prevent spreading.
- Apply cold water — pour a small amount of cold water on the stain to dilute the remaining coffee. Blot again to absorb the diluted liquid.
- Dish soap treatment — mix 1 teaspoon of dish soap with 1 cup of cold water. Apply a small amount to a cloth and blot the stain — do not pour directly on the carpet. Work from the outside in.
- Rinse — apply a small amount of cold water and blot to remove soap residue. Soap residue left in carpet attracts dirt.
- Dry — place several layers of paper towels on the damp area, weigh down with something heavy, and allow to dry. This draws remaining moisture and tannins up out of the fibres.
Dried Coffee Stains
- Wet the dried stain with cold water to rehydrate it
- Apply the dish soap solution and allow 5 minutes to work
- Blot and rinse as above
- For set-in stains: apply a small amount of white vinegar to the stain and allow 5 minutes, then blot. The acetic acid helps lift tannin compounds from the fibres.
- Follow with the dish soap step to remove vinegar
Commercial Carpet Stain Remover
- Folex Instant Carpet Spot Remover is widely regarded as one of the best carpet stain products available — apply, agitate gently with fingers, and blot. No rinsing required.
- OxiClean Carpet Spray (follow product directions) works well on set-in coffee stains
What Not to Do
- Do not use hot water — it sets tannin stains
- Do not rub — rubbing spreads the stain and embeds it deeper in the fibres
- Do not let the stain dry without treating it — dried stains require more effort
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