Well, I read a bunch of reviews about Bar Keepers and when I dropped by Canadian Tire I bought a couple of cans. I wanted to remove all of the stains on the trays that I use in the oven. On YouTube there are people claiming that your stuff comes out just like new after using it. Sorry, but that did not happen for me. At first I let it sit for an hour, scrubbed, nothing. Then I poured hot water on it and scrubbed, nope. I've tried countless times and this does not live up to the reputation. Disappointing.