10 Most Common Mistakes When Using a Cast Iron Pan and Cast Iron Casserole

Summary

Small mistakes when using a cast iron casserole or cast iron pan can directly affect both cooking performance and the lifespan of the product. Preheating an empty piece of cookware over high heat for too long, exposing it to sudden temperature changes, using metal utensils aggressively, or choosing unsuitable cleaning methods are among the most common user errors. In this guide, you'll find best practices for using enamelled cast iron cookware, common mistakes to avoid, and practical tips to help preserve your cookware's performance for many years.

Reading Time

8–9 Minutes

Cast iron casseroles and cast iron pans are among the most durable kitchen tools available when used correctly, offering outstanding cooking performance for many years. In particular, enamelled cast iron cookware is favoured by both home cooks and professional chefs thanks to its even heat distribution, excellent heat retention, and ease of use. However, to make the most of these advantages, it is important to develop the right cooking habits.

Most performance issues experienced with cast iron cookware are not caused by manufacturing defects but by small mistakes made during everyday use. Leaving the cookware empty over high heat for extended periods, exposing it to sudden temperature changes, or using unsuitable cleaning methods can affect both cooking performance and the long-term condition of the enamel surface.

In this guide, we explore the most common mistakes made when using cast iron casseroles and cast iron pans, explain why these habits can cause problems, and share practical ways to avoid them.

If you would also like to learn the fundamentals of using cast iron cookware, you may find our guides How to Use a Cast Iron Casserole, How to Use a Cast Iron Pan, and our Care & Use Instructions helpful.

Why Is Proper Use of Cast Iron Cookware So Important?

One of the greatest advantages of enamelled cast iron cookware is its ability not only to heat efficiently but also to retain heat evenly over long periods. This makes it suitable for a wide range of recipes, from searing meat and roasting vegetables to baking bread and preparing oven dishes.

However, cast iron's exceptional heat retention also means it benefits from slightly different cooking habits than lightweight aluminium or thin-based cookware.

Using it correctly helps to:

• distribute heat more evenly

• cook food in a controlled manner

• improve energy efficiency

• preserve the enamel surface for many years

• extend the lifespan of the cookware

Conversely, poor cooking habits may affect not only cooking performance but also the appearance and long-term usability of the product.

1. Heating Empty Cookware Over High Heat for Too Long

One of the most common mistakes is leaving a casserole or pan empty over high heat for an extended period.

Some users assume that the hotter cast iron becomes, the better it performs. However, with enamelled cast iron cookware, unnecessarily prolonged heating while empty is not recommended.

Cast iron naturally retains heat exceptionally well. A short, controlled preheating period is sufficient for most cooking tasks. Excessive heating may make temperature control more difficult once ingredients are added.

Best Practice

Preheat the cookware gradually over medium heat for a few minutes. Once it reaches the desired temperature, add your ingredients and begin cooking.

Even for recipes requiring high temperatures, such as searing meat, controlled preheating is generally more effective than prolonged heating over maximum heat.

2. Using Maximum Heat for Every Recipe

The belief that "cast iron always needs very high heat" is one of the most common misconceptions.

In reality, the greatest strength of cast iron is not its need for high temperatures but its excellent heat retention. Once the cookware has reached the desired temperature, most recipes can be cooked perfectly over medium heat.

Constantly cooking over maximum heat may:

• brown the outside too quickly

• leave the inside undercooked

• cause sauces to reduce too rapidly

• make cooking more difficult to control

Vegetable dishes, legumes, olive oil-based recipes, casseroles, and slow-cooked meals often produce much better results over medium or medium-low heat.

Because cast iron retains heat so effectively, there is rarely any need to keep the hob at its highest setting throughout cooking, making this approach more energy efficient as well.

3. Placing Cold Cookware Directly Over Very High Heat

Taking a cast iron casserole or pan from a cool cupboard and placing it immediately over maximum heat is not recommended.

Although cast iron is highly durable, enamelled surfaces also benefit from gradual temperature changes.

Allowing the cookware to warm progressively helps:

• improve cooking consistency

• distribute heat evenly across the entire surface

• make temperature control easier

This is particularly beneficial with larger casseroles, where a few minutes of gentle preheating allows the entire body of the cookware to reach an even temperature.

Recommended Practice

Warm the cookware gently over low or medium heat before gradually increasing the temperature to suit your recipe.

This approach improves cooking performance while offering greater control.

4. Running Hot Cast Iron Under Cold Water

Wanting to clean your cookware immediately after cooking is understandable, but placing a hot cast iron casserole or pan under cold running water is not recommended.

Sudden temperature changes may place unnecessary stress on the natural expansion and contraction of enamelled cast iron.

Allowing the cookware to cool closer to room temperature first is better for both longevity and ease of maintenance.

This is especially important after oven cooking or prolonged high-temperature use.

Best Practice

• Allow the cookware to rest for several minutes.

• Wait until it is cool enough to handle safely.

• Wash using warm water and a soft sponge.

For more detailed care advice, see our guides How to Clean a Cast Iron Casserole and How to Clean a Cast Iron Pan.

5. Using Metal Utensils Aggressively

Although enamelled cast iron is highly durable, the utensils used during cooking also contribute to preserving the cookware over time.

Habits such as:

• cutting food directly inside the cookware with a knife

• scraping the surface aggressively with metal spatulas

• applying excessive force with metal whisks

may eventually cause unnecessary wear to the enamel surface.

Although this damage may not be immediately noticeable, it can affect both appearance and long-term performance.

Better Alternatives

• Silicone spatulas

• Wooden spoons

• Heat-resistant plastic utensils

These options help protect the enamel surface while making cooking more convenient.

6. Using Unsuitable Cleaning Products

Many mistakes with cast iron occur during cleaning rather than cooking.

Some users attempt to remove burnt-on food using:

• abrasive scouring pads

• harsh cleaning products

• strong chemical cleaners

However, enamelled cast iron cookware rarely requires such methods.

If food residue has adhered to the surface, simply fill the cookware with warm water and allow it to soak for several minutes before cleaning with a soft sponge.

Can It Be Washed in a Dishwasher?

Although LAVA enamelled cast iron cookware is technically dishwasher safe, hand washing is recommended to help preserve the appearance and quality of the enamel surface for many years.

7. Overfilling the Cookware

When preparing meals for larger groups, it can be tempting to completely fill the casserole or pan.

However, for the best cooking performance, ingredients should have enough room inside the cookware.

For example:

• overcrowded meat may steam instead of sear

• vegetables piled too deeply may soften instead of caramelising

• restricted airflow may prevent the desired texture from developing

Better Results

Rather than cooking everything at once, prepare ingredients in batches when necessary.

This is particularly beneficial when:

• searing meat

• sautéing vegetables

• cooking mushrooms

8. Ignoring Guidelines for Different Heat Sources

One of the advantages of enamelled cast iron cookware is its compatibility with a wide variety of heat sources.

It can generally be used on:

• gas hobs

• electric hobs

• ceramic hobs

• induction hobs

• ovens

Regardless of the heat source, a few basic principles should always be followed.

For example:

• lift rather than drag the cookware across the hob

• choose cookware appropriate for the burner size

• avoid placing hot cookware directly onto cold surfaces after removing it from the oven

These habits improve both safety and long-term durability.

9. Subjecting the Cookware to Heavy Impacts

Cast iron itself is exceptionally strong, but the enamel coating should still be protected from unnecessary impacts.

Avoid:

• dropping the cookware heavily into the sink

• knocking it forcefully against other pots and pans

• dropping it onto hard floors

Even small habits can make a significant difference in preserving your cookware's appearance and performance over many years.

Supporting the cookware with both hands and placing protective cloths between stacked pieces are good long-term storage practices.

10. Using the Product Without Reading the Care Instructions

Like any premium cookware, enamelled cast iron performs best when used according to the manufacturer's recommendations.

Reading the care instructions before first use provides valuable guidance on:

• correct preheating

• proper cleaning

• oven use

• safe handling of handles

• recommended cooking temperatures

Understanding how your cookware is designed to perform not only helps you achieve better cooking results but also ensures you can enjoy it safely and confidently for many years.

7 Simple Habits That Will Extend the Life of Your Cast Iron Cookware

The following simple habits can help preserve the performance of your enamelled cast iron cookware for many years.

Conclusion

Enamelled cast iron casseroles and pans are durable kitchen essentials that can maintain their excellent performance for many years when used correctly. Recognising common user mistakes and adopting good cooking habits not only enhances your cooking experience but also helps extend the lifespan of your cookware.

Simple practices such as gradual preheating, avoiding unnecessarily high heat, preventing sudden temperature changes, and using appropriate cleaning methods will help you enjoy reliable cooking performance from your cast iron cookware for years to come.

Frequently Asked Questions

Why does food stick to a cast iron pan?

Food may stick if the pan has not been preheated sufficiently, if ingredients are added before it reaches the correct temperature, or if the pan is overcrowded. Proper temperature control and suitable cooking techniques usually produce much better results.

Do enamelled cast iron products require seasoning?

No. Enamelled cast iron cookware does not require additional seasoning. Correct use and regular care are sufficient to maintain its performance.

Is cooking over high heat always necessary with cast iron cookware?

No. Since cast iron retains heat exceptionally well, medium heat is sufficient for most recipes. Using excessively high heat rarely improves cooking results.

Which kitchen utensils are best for cast iron cookware?

Silicone, wooden, or heat-resistant plastic utensils are ideal for protecting the enamel surface and are well suited to everyday cooking.

Can cast iron casseroles and pans be washed in the dishwasher?

Although some models are technically dishwasher safe, hand washing is recommended to help preserve both the appearance and performance of the cookware over the long term.

How do you use a cast iron casserole? How do you use a cast iron pan?

Before using a cast iron casserole, it is recommended to preheat it gradually over medium heat for a few minutes. Once it has reached the desired temperature, add your ingredients and begin cooking. Because enamelled cast iron casseroles retain heat exceptionally well, medium heat is sufficient for most recipes. For complete guidance on proper use and care, see our "How to Use an Enamelled Cast Iron Casserole and Pan" guide.

Get the best long-term performance from your cast iron cookware by developing the right cooking habits. Explore LAVA's collection of enamelled cast iron casseroles and cast iron pans, and make the most of your cookware with our comprehensive care and usage guides.