What to do with lemon?

Lemon juice and vinegar also make a good mix, the next time you’re facing a greasy stovetop, you know what to do. Mix 1/2 cup of lemon juice and 2 cups of white vinegar in a spray bottle to make your own cleaner kitchen spray.
You can also apply salt directly to the area, then squeeze a liberal amount of lemon juice on top. Leave for a few minutes, then wash away with water and a damp cloth. With the acidity in lemon, soap scum will disappear and wash away easily.

Will my stove not rust?

It won’t especially if your stove is new.