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Carpet Care

Friday's Ask the Experts: Coffee stains and carpet

February 10, 2012
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Friday''s Ask the Experts question from a cleaning professional on the International Custodial Advisors Network (ICAN) "Ask the Experts" page: How do you remove old coffee stains from carpet?

The answer:

Coffee can be difficult to remove due to the natural tannin dye. There are three methods commonly used. A home remedy is to apply vinegar and blot with a white towel. Diluting a carpet acidic rinse liquid 1:5 works on most easy spots. Commercial coffee stain removers are normally effective on difficult or pre-cleaned spills. However, the active ingredient, sodium metabisulfite can bite your nose and is considered hazardous to breathe. One way to permanently set a coffee stain is to use a high pH cleaner, so if the spot has been repeatedly cleaned, you may be out of luck. Often, coffee stains must be removed at elevated temperatures close to the temp at which ... — Gary Clipperton, president of National Pro Clean Corp.

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