Detergent
Put the burned pan back on the stove. Fill the pan with a bottom of water and a dash of dishwashing liquid. Bring it to the kook and simmer for 10 minutes. You can loosen the caked-on residue with a wooden spoon. Pour off the water and wash the pan with a sponge.
Vinegar
With vinegar, you don't use hot water, but cold water. Add some vinegar into your pan with cold water. Let this soak for 15 minutes and dirt will loosen, after this scrub the burned residue with a dish brush.
Baking soda
Sprinkle a little baking soda on the burned-on residue and then fill the pan with warm water. Let this soak for a while and after this you can clean it very easily.
Salt
Sprinkle some salt in the pan and then fill it with warm water. Soak the pan like this for a few hours and then rinse it clean.
Note: definitely do not do this with a non-stick pan!
Cola
Pour a little coke into the still hot pan and let it soak for a few hours. The burned residue will come off by itself. Wash the pan off and done! Coke not only helps you get a clean frying pan, but you can also use it to remove rust. Multifunctional in other words!
Dishwasher tablet
Put half a dishwasher tablet in the pan and pour hot water over it. Soak the pan overnight and the next day all the residue will have come off. Wash the pan and rinse well with water.