While your French carbon steel skillet is still warm, rinse away food debris with water.
Avoid the use of soap as this will break down the protective oil coating and damage your seasoning.
After rinsing, dry immediately with a cloth. This will prevent rust from forming on your pan. Apply a light coat of oil.
If rinsing does not remove all of the food debris, reach for the salt. Salt will not break down the oils in the pan but will act as an abrasive to remove stubborn food. Use a disposable cloth to break up any food.
Follow this step with a thorough rinsing. Dry immediately. Lightly coat your skillet with oil to prevent rust.