
There are many different types of oils that can be used to reseason pans, and the process of reseasoning is the same regardless of the type of pan. The most common oils used for this purpose are vegetable, canola, flaxseed, grapeseed, and avocado oil. Some people also use Crisco, lard, or bacon grease, although these are high in saturated fats and therefore not the best choices. The process of reseasoning involves coating the pan in oil and heating it in an oven, which causes the oil to bond to the metal and form a protective coating. This coating improves the pan's nonstick properties and protects it from rust and corrosion.
Oils to reseason pans with
| Characteristics | Values |
|---|---|
| Oils with higher concentrations of | Avocado oil, Grapeseed oil, Vegetable oil, Canola oil, Flaxseed oil, Corn oil, Crisco |
| Unsaturated fats | Avocado oil, Grapeseed oil, Vegetable oil, Canola oil, Flaxseed oil, Corn oil, Crisco |
| Smoke point | Avocado oil, Grapeseed oil, Vegetable oil, Canola oil, Flaxseed oil, Corn oil, Crisco |
| Healthy oils | Grapeseed oil, Vegetable oil, Canola oil, Flaxseed oil |
| Oils with lower concentrations of | Bacon grease, Lard, Coconut oil |
| Saturated fats | Bacon grease, Lard, Coconut oil |
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What You'll Learn

Oils with high smoke points
When seasoning a pan, it is best to use an oil with a high smoke point. A high smoke point is 400 degrees F and above. Oils with high smoke points can withstand high heat and are ideal for frying, sauteing, and searing.
Some oils with high smoke points include avocado oil, canola oil, corn oil, and peanut oil. Avocado oil is a popular choice for seasoning cast iron due to its health benefits and versatility. It has a medium smoke point and is high in monounsaturated fats. Canola oil is also a good option for seasoning pans as it is easy to spread and affordable. However, some people avoid it due to the fact that it is processed from the rape seed plant.
Grapeseed oil is another oil with a high smoke point that is recommended by 3 out of 4 cast iron manufacturers. However, its health effects have been questioned due to its potentially harmful levels of polycyclic aromatic hydrocarbons (PAHs), which are known to cause cancer in animals.
Other oils with high smoke points include vegetable oil, olive oil, and flaxseed oil. It is important to note that olive oil, especially extra virgin olive oil, has a relatively low smoke point, so it should not be heated to higher temperatures as it will break down and turn rancid. Flaxseed oil has also been known to produce a fast layer of seasoning, but it tends to flake off with use.
Overall, when reseasoning pans, it is recommended to use oils with high smoke points, such as avocado oil, canola oil, grapeseed oil, or vegetable oil, and to apply very thin layers of oil, heating the pan past the oil's smoke point.
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Flaxseed oil
To use flaxseed oil for reseasoning, the pan must first be stripped of any previous seasoning. This can be done by running the pan through the oven's self-cleaning cycle, or by scrubbing it with oven cleaner, a lye bath, or electrolysis. It is important to ensure that the flaxseed oil is pure and made of 100% flaxseed, with no other additives or oils, as this can affect the reseasoning process.
Once the pan is stripped, a small amount of flaxseed oil should be poured into it. The oil should then be spread evenly across all surfaces of the pan, including the bottom, sides, and handle, using a paper towel or rag. The pan should have a slight sheen but no standing puddles or thick areas of oil build-up.
The pan is then placed in an oven at 500°F for 30 minutes. The oil will smoke and smell strange, but this is natural and will not cause a fire. After 30 minutes, the pan is removed from the oven and allowed to cool. Once cool, another thin coat of oil is applied, and the pan is placed back in the oven for another 30 minutes. This process is repeated as many times as desired.
Some people have found that flaxseed oil coatings can get brittle and flake off over time, but others have reported no flaking even after several years. It is important to note that flaxseed oil is expensive and has a low smoke point, so it may not be the best choice for cooking with.
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Avocado oil
To season a pan with avocado oil, you should apply a very thin layer of oil to a warm pan and wipe off as much as possible. You can then heat the pan in the oven at around 450º F for an hour, and repeat this process once or twice. It is important to ensure that there is no excess oil, as this will cause the pan to become sticky.
It is recommended that you reseason your pans twice a year, or more often if you cook with acidic food or do a lot of high-heat cooking.
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Vegetable oil
Seasoning a cast iron pan is important to protect the surface from rust and to make it non-stick. Seasoning is a layer of baked-on oil or fat that bonds to the metal through a process called polymerization.
To season your pan with vegetable oil, start with a clean and dry pan. Using a paper towel or your hands, coat the entire pan, including the bottom and handle, with a thin layer of vegetable oil. Make sure to wipe away any excess oil so that the pan feels practically dry to the touch. This is important to prevent the pan from becoming sticky.
Next, place the pan upside down on a rack lined with foil in an oven preheated to 350-400 degrees Fahrenheit. Bake for about an hour to allow the oil to bond to the pan. You may need to repeat this process multiple times to develop a smooth, non-stick finish.
Once your pan is seasoned, it is important to maintain it by regularly cooking with oil or fat. Each time you cook with oil, you will be adding more seasoning to the pan. You can also clean and dry the pan and then rub it with oil to maintain the seasoning.
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Oven vs stovetop heating
Seasoning a pan involves creating a hard, protective coating by heating thin layers of fat (like oil) on the pan. This process, called polymerization, converts the fat into a form of plastic, resulting in a non-greasy, blackened skin that protects the metal and provides non-stick properties. While various oils can be used for seasoning, some of the most commonly recommended options include vegetable, canola, corn, grapeseed, and flaxseed oils.
Now, when it comes to the oven vs stovetop heating methods for seasoning pans, there are some key differences to consider:
Oven Heating Method:
- The oven provides an even heat that effectively sets the oil all over the pan, preventing the hot and cool spots that can occur with stovetop burners.
- The oven method takes longer but yields less smoke and is more hands-off, making it more foolproof.
- To season a pan in the oven, preheat the oven to a temperature between 350°F and 500°F, which is typically above the smoke point of the oil.
- Place a foil-lined baking sheet on the bottom rack to catch any potential drips.
- After preheating, place the clean and dry pan upside down on the rack above the baking sheet.
- Apply a thin layer of oil to the pan, ensuring it is evenly distributed and not excessively greasy.
- Heat the pan in the oven for at least an hour.
- Repeat the process of heating, oiling, and cooling the pan up to three or four times to build up a durable seasoning layer.
Stovetop Heating Method:
- The stovetop method is faster but will produce more smoke, so ensure your kitchen is well-ventilated.
- Place the pan on a stovetop burner over medium to medium-high heat until hot.
- Add a small amount of oil to the pan, using a clean dry towel or paper towel to spread it evenly across the entire surface, including the sides.
- Heat the oil until it starts to smoke slightly, being careful not to burn it.
- Remove the pan from the heat and wipe away any excess oil.
- Allow the pan to cool completely before using or repeating the seasoning process to build up the seasoning layer.
In summary, both the oven and stovetop heating methods are effective for seasoning pans. The oven method provides more even heating and is less hands-on, while the stovetop method is faster but produces more smoke. Ultimately, the choice between the two methods depends on your preference for convenience, smoke levels, and the amount of time you're willing to dedicate to the seasoning process.
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Frequently asked questions
There are several oils that can be used to reseason pans, including grapeseed oil, flaxseed oil, avocado oil, vegetable oil, canola oil, and corn oil.
First, scrub your pan with a mixture of baking soda and vinegar, then wash and fully dry it. Next, rub a thin layer of oil all over the interior and exterior of the pan, and buff out any excess oil with a paper towel. Finally, heat the pan on the stove over low heat and slowly increase to a medium-high temperature.
One coat of seasoning won't last forever, but with proper care, your pan can last for generations. If you notice that your pan is developing stickiness or old food residue that you can't remove with simple cleaning, it's time to reseason.










































