[tastyfreeze]

Animal fats. Not vegetable oils. Vegetable oils polymerize to a sticky substance. Animal fats carbonize and protect the metal. Also using a metal spatula is a must in cast iron. The metal spatula keeps the surface smooth which enhances the non-stick property. Also wash after use and spread a little fat in it to prevent rusting. Don't scour. Just wash with soap and water.

[dotancohen]

So cast iron can not be used by vegetarians? I live with two vegetarians.

[tastyfreeze]

You can use vegetable oils but it will be difficult to clean. Deglazing doesn't work well on polymerized oil. Baking soda will dissolve the sticky goo.

[dotancohen]

Thank you.