Clean the inner pane of the oven door
Have you already annoyed yourself black when cleaning after the oven, this brown surface is still on the inner pane to watch? He just does not leave, as incorporated into the glass.
At first I also thought of unscrewing doors to get at all surfaces, battery pack, glass scraper, ... Everything was of no use until I discovered the miracle weapon white toothpaste. It contains fluoride and has removed this stubborn surface. Put a pea-sized amount on a damp cloth or paper towel (dry paper, then wipe off with a damp cloth) and the door looks like new. Brilliant.
