Fill the pot with enough water to cover the burnt area
Add 1 to 2 tablespoons of baking soda
Bring the water to a boil
Simmer for 10 to 15 minutes
Turn off the heat and let it cool
Scrub with a non-abrasive sponge or nylon scrubber
For stubborn spots, make a paste of baking soda and water
Apply the paste to the burnt areas
Let it sit for 15 to 30 minutes
Scrub again gently
Rinse thoroughly with warm water
Wash with dish soap
Dry with a soft cloth
For heavy buildup, add vinegar and water to the pot
Heat briefly, then remove from heat
Add baking soda after removing from heat
Let it fizz
Scrub after the fizzing stops
Repeat if needed