I have been using this product for years. Although there is no mistaking the toxicity of it on smelling the fumes ( when applying it I have to hold a cloth over my nose and mouth and have the window open), the results are absolutely amazing. I use it for my ovens and roasting pans and sheets. Even with the most hardened, caked on, burnt fat deposits I know that after using the carbon remover they come up like new. The gel is easy to spread around using the brush that is fitted to the lid of the can. The gel softens the carbon and after leaving overnight, simply wipe away the gel or rinse off the pans. I have yet to find a more effective and easy to use oven cleaner and would highly recommend this to anyone who spends hours scrubbing their ovens with unsatisfying results.