I was NOT very patient with the toaster oven. Waiting only a half hour and checking. It didn't work the way I had imagined. It didn't just wipe off, I had to scrub and reapply, then scrub and reapply several times before I got the toaster oven to a reasonable state. Unfortunately, some of the coating on the metal was eaten away either by the mixture or my scrubbing.
To show you another example I had a tray that was also in dire need of cleaning. I actually did wash it with soap and water before taking this picture.
I made the paste and let it sit on the cruddiest parts.
Two and a half hours later using a scouring pad I scrubbed the pasted off. I didn't scrub a lot because it's supposed to wipe off.
Yeah, doesn't really look any different.
Maybe I am doing something wrong, but you can clearly see that it's not that easy. And I'm not about to let it on there all day long. I just don't have enough patience or counter space for that. It did work well as a cleaner when I used it in the toaster oven. I didn't make the paste, it was a lot runnier and I just dipped the sponge into it and used the scrubby side and the crud came off easier than the other products I tried. I did a test with Scrubbing Bubbles, the baking soda & peroxide mix, and a wet sponge and dish detergent. It seems like the baking soda & peroxide does help break down the baked on grease, but you do have to use some elbow grease to get it off.