Is Cast Iron Safe for Cooking? 7 Top Pros & Cons

Is Cast Iron Safe for Cooking?

Last Updated on July 17, 2023 by Emily Anna

When purchasing cookware, a common question that arises is which pan is best for cooking. Among the various types of cookware available, cast iron pans are widely used in many countries. However, when selecting cast iron cookware, it is essential to address certain concerns, such as whether cast iron is safe for cooking or not.

So is cast iron safe for cooking?

Cast iron is considered safe cookware for cooking. Unlike other cookware products, cast iron does not release toxic fumes. When it’s properly seasoned and maintained, it creates a natural nonstick surface, requiring minimal oil for cooking. This makes it a healthier option for those who prefer to use less oil. Another major advantage of using cast iron is its ability to provide even heat distribution, making it perfect for searing meats, baking, and frying.

Cast iron is indeed safe for cooking and offers many other benefits. However, it is important to be aware of potential drawbacks associated with using this cookware.

Is Cast Iron Safe for Cooking?

Cast iron is generally considered safe for cooking. It is one of the oldest and most trusted cookware materials. Cast iron has several benefits, including its ability to maintain heat, durability, and versatility. And following are some of proven benefits of cast iron. 

Benefits of Cast Iron Cookware

 Highly Durable

High durability is the first significant advantage of cast iron. Due to their sturdy material, seasoning method, and excellent heat retention, cast iron pans are durable. Making them is also lengthy and labor-intensive, taking several weeks to complete.

Further, cast iron is made with hard and thick material. As for lifespan, commonly used pans typically last only five to seven years, even with proper care. But these pans are known to last for generations. Therefore, investing in such type of cookware will result in a long-lasting and durable product for your kitchen, even old pans are super useful.

 Retains Heat Well

Cast iron has a high heat retention capacity. On the other hand, the surface of commonly found pans may crack and break due to prolonged use at high temperatures, which can harm health. 

Therefore, the ability of cast iron to maintain temperature helps to protect its surface from cracking and allows for even cooking, which is highly beneficial for health.

Cast iron fraying pans can be safely used at any temperature without any problems. Thanks to this ability, cast iron is a safe option for cooking.


It can be used for multitask, making cooking easier in any situation. Cast iron pans can be used on all types of stoves including gas, electric and even ovens, fires, wood, and grills, which means you can use it on any other fire or wood stove when there is no gas or electricity.

You can make fluffy pancakes, crispy bacon, and even brown, sear, and fry food with cast iron. It is the most versatile cookware because of its ability to cook all types of food at different temperatures and its design that can fit on all types of stoves.

 Adds iron to food 

Cast iron also adds natural iron and other minerals to your food. The material from which cast iron is made contains a large amount of iron, and some of this iron is added to food during cooking. Further, cooking with cast iron has a positive effect on your health and enhances the taste of the food.

Safety Concerns with Cast Iron Cookware

Seasoning is essential in maintaining cast iron’s surface and protecting it from rust. However, remember a few things to avoid damage while doing this. When seasoning pan, use an oil that does not emit harmful fumes, even at high temperatures.

Canola oil, vegetable oil, and flaxseed oil are excellent choices, and it’s best to avoid butter or olive oil. Apply a very thin layer of oil while seasoning cookware. Applying too thick a layer can cause the food to stick to the surface and burn.

After seasoning, it’s important to note that using cast iron in a confined space can produce dangerous carbon monoxide. So, always choose a well-ventilated kitchen to use cast iron after seasoning. Pre-seasoned cast iron is also suitable for use. As this process, prevents rust, prevents food from sticking, cooks well, and enhances the flavor.

 Iron intake 

Due to their high acidity, cast iron cannot be used with acidic foods such as lemons and tomatoes. These foods react quickly with iron, which can be harmful to health.

In addition, excessive use of cast iron cookware can lead to various health problems, especially if you are not deficient in iron. Therefore, you should use a Non Reactive Pan?.

 Risk of rust 

If you do not properly care for cast iron, it is very easy to get rust. Because, rust changes the quality and taste of food. Due to rust, the color of food also changes. And there are various metal elements from rust can harm health by being added to the food.

Risk of chipping

If the surface of cast iron is cracked or broken, it becomes very difficult to cook on it. The cracked surface also makes it challenging to wash off the spices. Thus, the spices and burnt food trapped in the cracked surface can create bacteria and other germs that get added to the food during cooking.

The disadvantages of cast iron cookware include a tendency to crack, heavyweight, which can make lifting difficult, and the need to season it well every time.

How to Cook Safely with Cast Iron Cookware

 Proper seasoning

By properly seasoning cast iron, you can make it safe for cooking. This method prevents food from sticking to the surface, adds iron, and enhances the flavor of the food. Seasoning also strengthens the coating, reducing the surface scratching and cracking risk.

 Maintaining and cleaning the pan

Cast iron can be durable and safe to cook if properly cleaned and maintained. Always clean and season the pan immediately after cooking. Also, make sure that the scrubber used for cleaning is a soft cloth or sponge. 

Dry the pan well and do the proper seasoning. Choose a large and deep place to store the cast iron, and do not place any utensil made of hard material around it so as not to scratch its surface. Also, briefly keep cast iron in water, as this can cause rust.

Cooking Acidic Foods

To cook acidic foods in cast iron, first season it well by applying a thin layer of oil to prevent the food from sticking to the surface. Then, cook the acidic food on low flame.

Checking for Cracks and Chips

Thoroughly check pans before using them for cooking healthy food. Food stuck in a cracked, or scratched pan can create bacteria and germs that continue to be added to the food, making it difficult to wash the pan.

It is better to replace a cracked pan, but if you cannot, you can make the food safe by seasoning and coating.

What are the disadvantages of cooking with cast iron?

Here are some disadvantages of cast iron cookware:

  • Heavy to lift
  • Reacts with acidic food
  • Food sticks to the surface
  • Rusts easily
  • Slow heating and cooling
  • Inability to handle thermal shock stress
  • Expensive

FAQs About Is Cast Iron Safe for Cooking?

Is cast iron the safest cookware?

Currently, cast iron is considered one of the safest pans for cooking. Cast iron is a safe material for cooking as long as it is used and maintained correctly. 

Many individuals choose to cook with cast iron due to its durability, versatility, and affordability. This cookware can distribute heat evenly and has natural non-stick properties, making it an excellent option for cooking. If it don’t have you can follow this guide to restore non stick pan.

What is the safest cookware for your health?

Cast iron, ceramic, stainless steel, and glass are considered the safest cookware for your health. Cast iron pans can even add iron and flavor to your diet.

Is stainless steel better than cast iron?

If you prefer the ease of handling, rust prevention, quick cooking, easy flipping, and quick washing, stainless steel is better than cast iron.

However, cast iron is the best option if you prioritize durability, versatility, and the best heat resistance.

What cookware should you avoid?

Avoid using pans made of Teflon, which is a type of Perfluorocarbon (PFC). They release dangerous substances through smoke, which can harm health.

What is the safest pan coating?

PTFE is the only material that is FDA-approved and protected by the US Consumer Safety Commission. However, it has maintained the best level in today’s market.

What is the biggest problem with cast iron?

Cast iron is a perfect heat resistor but is not a very efficient conductor, which can cause unwanted hot and cold spots. 

Similarly, it could give better results even in fully cooked food. When it comes to carbon steel, its thin structure can exacerbate the problem and make it more susceptible to uneven heating.


Cast iron is totally safe for cooking. And it has number of health benefits for cooking including it added iron to food, increased flavor, durability, versatility, and excellent heat resistance.

Similar Posts