Meg P. asked:
We were sitting outside on the patio and had a coffee cup on the arm of a chair. The cup fell and the coffee spilt. The coffee wasn’t promptly cleaned up and needless to say, left a nice stain. Do you know of any products or what we can do to remove a coffee stain from cement?
Bleach perhaps?
first of all it is concrete…cement is one of the dry products that make concrete. pressure washing is the best and surest way to remove this stain…you can try a paste of laundry detergent and vinegar…acidic…
hydrochloric acid
I have not tried this myself but you could try denture tablets as it does remove coffee stains from dentures it may also work on concrete; desolve a couple in a small amount of water and brush it on the stain and let it sit for fifteen minutes or so. I hope this helps!