It’s important to not warm the cookware so much that it makes it unable to be touched. Warming up your cookware before the application of oil or shortening can make the application easier.

You can do this by placing a bit of oil or shortening onto a cloth or paper towel and rubbing it across the cookware’s surface. Be sure to cover all sides of the cookware, including the exterior parts. [4] X Expert Source Raymond ChiuHouse Cleaning Professional Expert Interview. 15 October 2019.

The cast iron cookware should look as if all the oil or shortening has been wiped away. In reality, a thin coat will remain on the cookware, and this layer will cure the cookware. [5] X Expert Source Raymond ChiuHouse Cleaning Professional Expert Interview. 15 October 2019.

Many people who season their cast iron cookware line a cookie sheet or the bottom of their ovens with aluminum foil so that the oil that drips off of the cookware will not touch the oven itself.

You can choose a temperature anywhere between 350 to 500 Fahrenheit (176 to 260 Celsius). The perfect temperature depends on the size of your cookware and the amount of time you intend to cure it for.