15 minutes.
Let it cool slightly, then scrub and rinse thoroughly.
Method 2: Paste
Mix citric acid with a little water.
Apply the mixture to the burned surface.
Leave it to sit for 20 to 30 minutes.
Rub gently and rinse thoroughly.
This method can be useful for stainless steel and heavily burned casseroles.
Precautions
Do not use citric acid on regular aluminum cookware, as it may discolor the surface.
Avoid metal sponges on non-stick surfaces.
Never mix citric acid with bleach or chlorine-based cleaners, as this can produce dangerous
