in place with a piece of taped down cling film. leave it alone for a minimum of 24 hours, or until the paste is dry. remove the cling film and gently scrape off the dried paste from the surface using the plastic scraper or an old plastic card. wipe off the residue with a damp cloth and dry it completely with another soft cloth. if you still see some signs of staining, repeat the process until it is all gone.
organic fluids like coffee and fruit leave a brownish stain on natural stone. the best way to take them out is to apply a solution of 12% hydrogen peroxide with a 