How to season cast iron pan for a natural non-stick and rust-resistant layer

Why cast iron pans are advertised as naturally non-stick without oil, but don’t seem non-stick when you use them

You might wonder why cast iron pans are advertised as having a natural non-stick layer without needing oil, yet when you use them, they don’t seem non-stick as claimed. In fact, it’s not that cast iron doesn’t have a natural non-stick surface—it’s because the pan needs to be seasoned before use.

Seasoning helps form that natural non-stick layer and also keeps the pan durable and rust-resistant even when not in use. So how is the seasoning process done? And what is the proper way to clean and maintain a cast iron pan so it stays long-lasting?

What is a cast iron pan?

A cast iron pan (also known as cast iron cookware) is made from a material called cast iron, which is an alloy of iron and carbon. These pans are known for their excellent heat retention, even heat distribution, durability, and the ability to develop a natural non-stick layer through proper seasoning and regular maintenance.

Thanks to these outstanding features, cast iron pans are a favorite for grilling, searing meat, baking, and preparing various dishes—especially in cooking tasks that require high temperatures and superior durability.

Is cast iron cookware any good?

Cast iron pans are one of the most highly regarded traditional cooking tools thanks to their durability and excellent heat retention. When used correctly, cast iron is completely safe and poses no health risks. However, improper care and maintenance can lead to damage and even potential health concerns.

Cast iron is made from an alloy of iron and carbon, heated to temperatures up to 1500°C before being poured into molds to form the desired shape. Once cooled, the iron surface is susceptible to oxidation and rust. That’s why regular seasoning, proper cleaning, and correct storage are absolutely essential to preserve the pan’s longevity.

With the right care, a cast iron pan can last for many years—up to a decade or more—while maintaining excellent performance and showing no signs of wear.

Does a cast iron pan have a natural non-stick coating?

When first purchased, a cast iron pan does not come with a natural non-stick layer. To develop this coating, it must go through a process called seasoning. During seasoning, oil is applied to the metal surface and heated, forming a protective barrier that prevents direct contact between the metal and air/moisture—slowing down oxidation and creating a natural shield.

This polymerized layer not only resists rust but also develops a natural non-stick surface, allowing food to release easily during cooking. However, to maintain this non-stick layer, it’s essential to season the pan regularly, clean it properly, and store it correctly after each use.

With consistent care, a cast iron pan will remain in top condition, deliver excellent cooking results, and stay durable for years to come

How to season cast iron pan 

This proper seasoning method helps your cast iron pan develop a natural non-stick layer and prevents rusting when not in use or exposed to the environment for extended periods.

• Step 1: Wash and dry the pan

Before seasoning, thoroughly wash your new (or unseasoned) cast iron pan with warm water and soap to remove any factory residue or grease.
Use a towel to dry it completely—moisture can prevent the oil from bonding to the surface.
To ensure it’s fully dry, place the pan on the stove over low heat for 1–2 minutes to evaporate any remaining moisture.

• Step 2: Apply a thin layer of oil

Pour a small amount of cooking oil onto the pan. Use a cloth or paper towel to spread the oil evenly over the entire surface—including the cooking area, outer sides, and the handle.
Make sure the oil layer is thin and even. Wipe off excess oil until the surface doesn’t feel greasy.
Avoid using too much oil, as this can cause sticky patches or uneven seasoning.

• Step 3: Season the pan in the oven

Preheat your oven to 230°C (about 450°F). Place the pan upside down on the oven rack. Bake it for 30 minutes.
It’s normal for some smoke to be produced during this process—don’t worry, it’s part of how the oil bonds to the pan to form the seasoning layer.

• Step 4: Repeat the seasoning process 2–3 times

For a stronger and more durable non-stick layer, you can repeat the steps of applying oil and baking the pan 2–3 times

How to clean and maintain a cast iron pan

• Step 1: Clean immediately after cooking

After cooking, let the pan cool slightly (but keep it warm), then start cleaning. Cleaning while the pan is still warm makes it easier to remove residue.

• Step 2: Use warm water and a soft sponge

Wash the pan with warm water and a soft sponge. You can use a small amount of mild dish soap—modern soaps won’t damage the seasoned surface of the pan.

• Step 3: Dry immediately

After washing, dry the pan right away using a clean cloth. To ensure all moisture is gone, place the pan on low heat on the stove for about 1–2 minutes. This helps prevent rust.

• Step 4: Apply a thin layer of oil (Optional but recommended)

While the pan is still slightly warm, use a paper towel to apply a thin layer of cooking oil to the inside surface. Wipe off any excess oil with another clean paper towel to avoid a greasy feel.

• Step 5: Store properly

Keep the pan in a dry place. If stacking pans, place a paper towel between them to protect the seasoned surface.

* Important tips:

• Do not soak cast iron pans in water.
• Do not put them in the dishwasher.
• Avoid using steel wool or harsh detergents, as they can strip away the non-stick seasoning layer.

Just follow these steps, and your cast iron pan will stay clean, rust-free, and increasingly non-stick over time.

Where to buy traditional cast iron pans

Nowadays, the market is flooded with various types of cast iron pans, many of which are blended with different alloys – making it difficult to find a truly authentic, traditional cast iron pan. If you’re looking for a genuine, American-style cast iron pan, X-BBQ is a trusted destination for you.

X-BBQ is well known not only for its line of Barbecue grills but also for offering traditional cast iron pans that are solidly molded and designed in classic American BBQ style. These pans from X-BBQ are versatile enough for stovetop use and oven cooking, and they meet strict standards for quality and durability.

They’re an ideal choice for those who appreciate rustic charm, long-lasting performance, and the distinctive cooking experience that only a traditional cast iron pan can deliver.

Conclusion

Cast iron pans are more than just traditional cookware – they’re enduring companions in every family kitchen. When properly seasoned, cleaned, and cared for, they develop a natural non-stick surface that makes cooking easier, safer, and more flavorful.

Investing time into maintaining a cast iron pan not only extends its lifespan but also offers a unique cooking experience that rivals that of professional chefs. If you’re looking for a high-quality traditional cast iron pan, trusted brands like X-BBQ ensure lasting performance and reliability.

Remember, a good cast iron pan is worth the care you put into it – and it can accompany you for generations to come.