I've been trying this product ( or something like it) and have found it to work well. The stuff I use is yellow, thick, and comes in a small single use packet. Can't think of the name right now. It does not really give any noticeable fumes. Work free? Of course not, but it is ok. I still prefer the method shown me years ago. At the end of the night, turn flat-top down to about half your average service temp and let temp drop while doing other things. When other things are done, hit your flat-top with a half/half mixture of warm water and white vinegar and start scrubbing. Stinks like ****, but works. This also had the added benefit of insuring that that one last table of customers that just won't leave, hits the bricks. Usually within seconds after that vinegar steam cloud hits em. Heee Heee!!