The Best Oils to Keep Your Cast Iron Skillet Sizzling

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The Best Oils to Keep Your Cast Iron Skillet Sizzling

Among all the kitchen essentials, a cast iron skillet is a must. Not only is it durable, but it’s also versatile and one of the best choices if you want to get a perfect sear on everything from vegetables to steaks.

Taking care of your cast iron skillet can turn a simple skillet into a family heirloom, passed down from generation to generation. So what is the key to its longevity? Season, especially with the right oil.

In this article, we’ll explore why seasoning is essential to keeping your cast iron skillet sizzling for years, how to season it correctly, and which oils work best. Whether you’re a seasoned chef (pun intended) or a newbie, we’ve got you covered.

Why should you season your cast iron skillet?

When you first purchase a cast iron skillet, you may notice that the surface is a little rough. Imagine non-stick cooking? This is probably not the best choice. However, with the right seasoning, you can create a smooth, non-stick coating that enhances the cooking experience and protects the pan from rust. So how does it work?

Seasoning your cast iron pan involves adding a thin layer of oil then heating the pan. This process triggers polymerization, which is a chemical reaction that allows the oil to harden to form a tough protective layer. Over time, as you continue cooking and seasoning, the layer builds up and creates a nearly impenetrable surface that keeps your pan nonstick and rust-free.

Cast iron pans can withstand quite high temperatures and are therefore ideal for searing, frying and even baking. Without a proper layer of seasoning, acidic foods like tomatoes or vinegar-based sauces can strip the pan of its protective coating – seasoning strengthens this layer to protect it from damage.

How to Season Your Cast Iron Skillet

Seasoning your cast iron skillet doesn’t have to be difficult, but it does require some attention to detail. Here are some steps to properly season it:

  1. Clean it: Start by cleaning your pan with lukewarm water and mild soap. Generally, you want to avoid using soap when cleaning cast iron, but a light wash before seasoning won’t hurt. Scrub off food debris or rust with a stiff brush or steel wool.
  2. Dry well: Drying your pan is important since water is the enemy of cast iron. Yes, it can cause rust. So after cleaning, be sure to dry your pan thoroughly with a paper towel or place it on the stovetop over low heat to remove any remaining moisture.
  3. Add oil: Lightly coat the entire surface of your pan with a thin layer of oil (be sure to coat the bottom and handle as well). Rub off any excess oil with a paper towel. We’ll know more about which oils to use later!
  4. Warm it up: Place your pan upside down in the oven and preheat it to 400°F. Be sure to place a sheet of aluminum foil to catch any drops of oil. Bake the pan for an hour to help the pan polymerize and form its hard, protective coating.
  5. Cool and repeat: After an hour you can turn off the oven and let the pan cool inside. Repeat this step two or three times (adding thin layers of oil each time) for best results.

The Best Oils to Use for Seasoning Cast Iron

Oils aren’t just for adding flavor or cooking! Using oil is essential for seasoning your cast iron skillet. While not all oils are equal, we’ve rounded up some of our favorite oils.

1. Linseed oil

Topping our list is linseed oil, often praised for its ability to create a hard, smooth coating. Thanks to its low smoke point, this oil allows rapid start of polymerization once heated.

2. Grapeseed oil

We like grapeseed oil because it has a high smoke point and neutral flavor. If you want to create several thin layers of seasoning, this oil does the trick (and remember, layers are the key to creating a long-lasting nonstick surface).

3. Canola oil

For an affordable option that you can find at any local market, canola oil is a great choice with a high smoke point. It is one of the most frequently used oils to season cast iron pans, as it is very economical. Fun fact: The polyunsaturated fats found in canola oil aid the polymerization process – just be sure to wipe off the excess oil!

4. Coconut oil

For a more natural route, coconut oil offers a vegetable oil option that has a relatively high smoke point. One of the reasons we love this oil – and think you will too – is that it leaves behind a pleasant, mild scent. Just note that coconut oil can solidify at room temperature, so consider warming it for easier use.

5. Peanut oil

Another high smoke point oil to the rescue! Peanut oil is great for seasoning your cast iron skillet because it won’t break down at high temperatures. A quick note: If someone in your household has a peanut allergy, you may want to try another oil from the list.

6. Lard and bacon fat

If you want to try a more traditional method, try using animal fat like lard or bacon grease. These fats generally have a high smoke point and can add a light natural flavor to your pan.

7. Olive Oil

Although olive oil has a relatively low smoke point, it is still a good choice because it is commonly used and relatively easy to find. Olive oil also has a natural flavor, so you don’t have to worry about a lingering taste.

8. Vegetable oil

Vegetable oil is widely available and inexpensive. With its high smoke point, this oil is a great choice for seasoning your pan without needing to spend too much on specialty oils (you can save them for cooking).

9. Soybean oil

Soybean oil is often found in commercial vegetable oil blends. Closing out our list with another oil with a high smoke point and neutral flavor, this is another affordable option for seasoning your cast iron skillet.

  • High smoke point: Oils with a high smoke point are essential to avoid burning in the oven. These oils also ensure a good polymerization process without burning flavor or odor.
  • Neutral flavor: Consider choosing neutral-flavored oils, especially if you use your pan for a variety of foods. Oils like grapeseed or canola are great for this.
  • Budget: If you plan to season your pan regularly, budget options are the way to go. This includes canola, vegetable, or peanut oil, which will deliver great results without breaking the bank.
  • Avoid butter and solid shortening: While butter and solid shortening like Crisco can be great for cooking, they have low smoke points, making them less ideal for the seasoning process. Additionally, they can leave a sticky residue that is difficult to remove.

Show your love for the cast iron skillet with seasoning. For seasoning, you need the right oil, and whichever oil you choose, you’ll create a long-lasting nonstick surface that makes cooking easier. Remember to apply thin layers of oil and heat the pan well for the best results. By keeping your cast iron skillet well seasoned, it can become a kitchen staple for years to come.

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