What is the best oil to use season cast iron frying pans?

The most commonly recommended oil for seasoning cast iron is flaxseed oil. It has a high smoke point and polymerizes well to create a durable, non-stick surface. Other good choices include grapeseed oil, canola oil, and vegetable shortening. Avoid using olive oil, as it has a low smoke point and can easily burn.

Here are the general steps for seasoning a cast iron frying pan:

1. Wash the pan thoroughly with hot water and dish soap. Be sure to remove all traces of food and grease.

2. Dry the pan completely with a clean towel.

3. Place the pan upside down in the oven and preheat to 350 degrees Fahrenheit.

4. Once the oven is preheated, carefully remove the pan from the oven and place it on a heat-resistant surface.

5. Rub a thin layer of oil all over the inside of the pan, including the sides. Be sure to get into all the nooks and crannies.

6. Place the pan back in the oven upside down and bake for one hour.

7. Turn the oven off and let the pan cool completely in the oven.

8. Repeat steps 4-7 two more times.

After you have seasoned your cast iron pan, it is important to maintain the seasoning by following these tips:

* Always wash the pan with hot water and dish soap after each use. Do not use harsh detergents or scrubbers, as they can damage the seasoning.

* Dry the pan completely with a clean towel after washing.

* Avoid using the pan over high heat, as this can damage the seasoning.

* If the pan starts to lose its seasoning, you can re-season it by following the steps above.