Any kitchen stove has small, but often very dirty parts.
We are, of course, talking about the handles, under which deposits of fat, food particles and other contaminants are hidden.
If the switches are removable, then cleaning will not take much time and effort - just remove the handles and wipe the stove with a damp sponge with the addition of detergent.
The handles themselves should be soaked in hot water with a couple of drops of dishwashing liquid, then remove the remaining soaked fat.
If the handles are not removable, try to pull them slightly first to clean the dirt out of the resulting gap.
Important: do not pull the handles with all your might, so as not to accidentally damage the equipment.
Now, dip an old toothbrush into hot water and try to remove the dirt.
You can help yourself with toothpicks, and then go over it again to be sure with a very damp sponge, after which the remaining fat will flow down.