Trust me .. hot water, bread or especially Windex won't work. Use Acetone. Soak the stain with Acetone overnight and the stain will be removed. The 511 sealer MUST be applied when the granite is new and/or following the Acetone clean-up. I love my Granite now. I've posted several other places on this board. Just follow my directions. You will be SO relieved you found a cure for this. Enjoy your Granite.