Yes, you can use cooking oil on cast iron cookware. In fact, using cooking oil is a common practice to maintain and season cast iron cookware. Seasoning is a process of treating the cast iron with oil to create a natural, non-stick surface that prevents rust and improves the overall cooking performance.
Here are some key points to consider when using cooking oil on cast iron cookware:
Seasoning: Before using your new or newly cleaned cast iron cookware, it's essential to season it. To season cast iron, apply a thin layer of cooking oil (such as vegetable oil, canola oil, or flaxseed oil) to the entire surface, inside and out, including the handle. Then, heat the cookware in an oven at a high temperature for about an hour. This process polymerizes the oil, forming a protective layer that enhances the non-stick properties and prevents rust.
Ongoing maintenance: After each use and cleaning, it's a good idea to apply a thin layer of cooking oil to the cooking surface. This helps maintain the seasoning and prevents the cast iron from drying out or developing rust.
Use the right amount: Avoid using excessive amounts of oil, as it can become sticky and create a gummy residue on the cookware. A light coating of oil is sufficient for seasoning and maintenance.
High smoke point oils: Opt for oils with high smoke points, as cast iron can withstand high temperatures. Vegetable oil, canola oil, grapeseed oil, and flaxseed oil are all good options.
Avoid oils with strong flavors: Certain oils, like olive oil, may impart strong flavors to your food and may not be ideal for seasoning or regular maintenance of cast iron cookware.
Regular use is beneficial: Regularly cooking with cast iron cookware and using a small amount of oil during cooking can also help maintain the seasoning and improve the non-stick surface over time.
Remember that cast iron cookware requires special care and attention. Avoid using harsh detergents or metal scouring pads when cleaning, as they can strip away the seasoning. Instead, use a soft sponge or brush and hot water to clean the cookware after use. Dry the cookware thoroughly to prevent rusting, and if needed, apply a thin layer of cooking oil after cleaning.
By using cooking oil appropriately on your cast iron cookware, you can enjoy its excellent cooking properties and ensure its longevity for years to come.