Good options for seasoning cast-iron cookware include vegetable oil, canola oil, grapeseed oil, peanut oil, and flaxseed oil.
When oil reaches its smoke point, it can release black smoke and unpleasant flavors and break down into harmful compounds that can be really bad for you.
Oils such as coconut oil or bacon grease can impart a more robust flavor to the food. The flavor contribution of the seasoning layer is generally minimal and should not significantly impact the overall taste of the food.
The process of seasoning cast-iron cookware is relatively simple. It involves applying a layer of oil to the cookware’s surface and heating it in the oven to create a durable and non-stick surface.