Is Cast Iron Safe? – Iron Cookware Safety

It was hot, so hot. I was sure it was about to start smoking, but it didn’t. My hand hovered just above it, close enough to feel the waves of heat radiating off the surface. That’s when it hit me. Something had shifted, not in the pan, but in my brain. What was happening!?! 😬 

The answer wasn’t what I expected. It wasn’t just the heat. It wasn’t just the oil. It was the process. The ritual of something so simple, so mundane, had become an anchor for my mind, one that I hadn’t realized I needed. 

In this article, we will discuss:

• Are Cast Iron Pots Safe For Cooking?
• Myths & Truth Behind Cast Iron Skillets
• Scientific Studies That Back Cooking On Cast Iron
• Potential Things To Be Mindful Of When It Comes To Using A Cast Iron Pan
• Personal Story – Finding Mindfulness
• Health Benefits of Ditching Non-Stick Pans 

Are Cast Iron Pots Safe For Cooking?

Cast iron pots have been a staple in kitchens around the world for centuries. Their unique properties and benefits make them a preferred choice for many cooking enthusiasts.
They are a popular choice for cooking due to their durability and heat retention properties. Here’s a breakdown of what they are and what they consist of:

What Are Cast Iron Pots?

Cast iron pots are known for their durability, excellent heat retention, and even cooking. They are versatile and can be used on stovetops, in ovens, and even over open flames.

A cast iron skillet is one of the most durable and hardworking tools in your kitchen, provided you understand how to use and maintain it properly. Some aspects of cast iron skillet care may not be obvious, so dedicating some time and effort to learn about cooking with cast iron will help ensure your skillet remains in excellent condition for years to come.

With proper care, such as seasoning to maintain their non-stick surface and prevent rust, cast iron cookware can last for generations, making it a favorite among professional chefs and home cooks alike.

If you’re new to cast iron cooking, you might find the maintenance of this robust kitchen item intimidating and question the safety of using cast iron skillets. Hence, we aim to clarify some prevalent myths surrounding cast iron cookware and present you with the facts.

Is cast iron safe for health? Cast iron cookware is considered safe for health when used correctly. Here are some key points: Iron Leaching: Cooking with cast iron can increase dietary iron intake, which is beneficial for those with iron deficiency. However, excessive iron intake can be harmful, particularly for individuals with conditions like hemochromatosis. Non-Stick Properties: Unlike some non-stick coatings that can release harmful chemicals at high temperatures, cast iron is naturally non-stick when seasoned correctly, making it a safer option. Durability: Cast iron is highly durable and can last a lifetime, reducing the need for frequent replacements that might involve harmful materials. Maintenance: Proper care is essential. Avoid cooking acidic foods for extended periods, as this can strip the seasoning and lead to rust.

Myths & Facts About Cast Iron Skillets

A Used Iron Skillet Can Change The Flavor Of The Food

A seasoned skillet can significantly enhance the flavor profile of your culinary creations, providing a unique and distinct character that cannot be replicated with other cookware.

The process of seasoning a cast iron skillet is essential, as it involves the buildup of a layer of polymerized oil that creates a natural non-stick surface over time. This phenomenon occurs as you repeatedly cook foods that contain oils and fats, allowing these substances to bond to the metal.

Many new users of cast iron skillets often misinterpret the term “seasoning.” They may confuse it with the seasoning applied to food to enhance flavor, leading to a misconception that the taste of previous meals will linger and alter the flavors of future dishes cooked in the same skillet. However, this is a myth. While your skillet will develop a beautiful, dark patina from countless cooking sessions, the essence of those past meals will not transfer to new recipes.

Instead, what happens is that the seasoned surface prevents rusting and enhances the cooking experience by allowing food to brown evenly while also facilitating easy cleanup. You will find that as you build up layers of seasoning through regular use and proper maintenance, your skillet becomes increasingly effective, which can lead to improved flavors in your cooking due to better heat retention and distribution.

Can You Clean Your Iron Skillet With Soap?

One of the most common misconceptions about cast iron skillets pertains to the cleaning process. True, you shouldn’t be throwing your cast iron skillet into the dishwasher or soaking it, but a small amount of dish soap and water is perfectly acceptable when cleaning your cast iron skillet.

As long as your skillet is seasoned well, washing it this way won’t affect its integrity. Many seasoned cooks recommend using a mild dish soap occasionally if you find your skillet has an excess of food residue or grease buildup. Just remember to avoid abrasive scrubbers that can scratch the seasoning.

Can You Cook Acidic Food In Iron Cookware?

This one’s only half true. Ideally, your skillet is seasoned well enough so that whatever food you’re cooking in it is coming into contact with the seasoning layer and not the iron itself.

However, because skillets are rarely seasoned perfectly, it’s wise to limit the amount of acidic foods you cook in them to quick skillet-sauces and deglazing, as opposed to slow-simmering tomato sauce in them for hours. Cooking highly acidic foods for prolonged periods can wear away the seasoning, leading to a metallic taste and potential irritation from iron leaching into the food

Metal Utensil With Iron Skillet

Because seasoning is chemically bonded to the surface of your skillet, it’s highly unlikely that metal utensils can scrape it off. Contrary to popular belief, using metal spatulas and spoons should not damage the seasoned surface.

If you see some black flakes being released from your skillet, they are much more likely to be leftover carbonized bits of food from previous cooking. It’s important, though, to maintain the integrity of the seasoning by regularly re-seasoning your skillet and cleaning it properly to prevent buildup that could lead to flakes.

Using wooden or silicone utensils can also help in maintaining the surface, but metal utensils are perfectly safe for regular use.

Can You Get Excess Iron In Your Blood Due To Cast Iron?

You can overdose on dietary iron by using a cast-iron skillet.

Cast iron skillets can indeed leach a certain amount of dietary iron into your food, leading to potentially excessive iron consumption. However, this scenario is highly unlikely if your cast iron skillet is well-seasoned and you avoid cooking acidic foods, like tomatoes or vinegar-based sauces, in it for extended periods. Acidic foods can increase the leaching of iron, but if prepared correctly, the levels remain within safe limits.

Do Cast Iron Utensils Work Only On Gas Stoves?

Additionally, cast iron skillets are often believed to only work on gas stoves, but this is a misconception. While they may take a little longer to heat up due to their thickness, cast iron skillets perform exceptionally well on electric stoves, induction cooktops, and even in the oven. The versatility of cast iron makes it a great addition to any kitchen, regardless of the cooking method.

Can You Store Your Food In Your Iron Skillet?

You should never use your cast iron skillet for storing food. It may initially seem like a convenient idea to store your leftovers right in your cast iron skillet, with the intention of easy reheating later on.

After all, the thought of saving dishes and making meal prep more efficient can be quite appealing. However, this notion can be quite detrimental to the longevity of your cast iron cookware. Unlike pots and skillets made of stainless steel, which can withstand food storage without significant repercussions, cast iron is particularly sensitive to moisture and acidic foods.

When you place leftovers in a cast iron skillet, the food’s moisture, along with its acidity, can cause the seasoning to break down over time. The seasoning is the layer of oil that has been polymerized on the cast iron surface, which not only gives it a non-stick quality but also protects the material from rust and corrosion. Continuous exposure to food can lead to rusting, dullness, and a compromised cooking surface, ultimately paving the way for requiring more maintenance and re-seasoning.

Additionally, storing food in cast iron can lead to flavors transferring between your meals and the skillet, which could impact the taste of future dishes cooked in the same skillet. This issue can be especially pronounced with strongly flavored or spiced foods, which may leave residual tastes that linger in the cookware.

To preserve the integrity and seasoning of your cast iron skillet, it’s best to avoid using it for food storage. Instead, consider transferring leftovers to glass or other food-safe containers before refrigerating. This practice not only maintains the quality of your cast iron but also ensures that your meals stay fresh and flavorful for your next dining experience. Taking these simple precautions will extend the life of your cookware and enhance your overall cooking experience.

Can You Put A Cast Iron Pan in the Dishwasher?

No, it’s best not to put a cast iron pan in the dishwasher!

The harsh detergents and high heat can strip away the seasoning, leading to rust and a loss of that wonderful non-stick surface. Instead, just rinse it with hot water and use a gentle scrub brush or sponge. If there’s stuck-on food, a little coarse salt can help.
After cleaning, dry it thoroughly and apply a light coat of oil to keep it seasoned. This way, your cast iron will stay in great shape for years to come!

Is Cooking On A Cast Iron Skillet Safe?

Cooking on a cast iron skillet is not only safe but also a great choice for many reasons! However, there are a few things one must keep in mind while using a cast iron skillet for cooking:

Seasoning Maintenance: Regularly season your cast iron pan to maintain its non-stick surface and prevent rust.

Cleaning Practices: Avoid using soap or abrasive cleaners, as they can strip the seasoning. Instead, use hot water and a stiff brush.

Use Appropriate Utensils: Use wooden, silicone, or plastic utensils to avoid scratching the seasoned surface.

Weight Considerations: Be mindful of the weight when handling, as cast iron pans can be heavy, especially when full.

Storage: Store carefully to avoid chipping the enamel (if enameled) or damaging the seasoning (if bare). Consider placing a cloth between stacked pans

Cooking Temperature: Preheat gradually; avoid high heat settings for long periods to prevent damage to the seasoning.

Rust Prevention: Always dry the pan immediately after washing to prevent rust formation.

Re-seasoning: Be prepared to re-season your pan periodically, especially if you notice food sticking or rust forming.

Not Dishwasher Safe: Do not put cast iron pans in the dishwasher, as the harsh environment can damage the seasoning.

Scientific Studies That Back Cooking On Cast Iron

Numerous scientific studies attest to the merits and safety of cast iron cooking. Most of these studies focus on the health benefits of cooking on cast iron pans, but one must assess your health before purchasing one for cooking.

For instance, cooking with cast iron can increase the iron content in your food, which may be beneficial for individuals with iron deficiencies.

However, for those with conditions like hemochromatosis, where excess iron is a concern, it might be advisable to consult a healthcare professional before using cast iron cookware regularly. Additionally, considering factors such as maintenance and the weight of the pans is crucial, as they can impact your cooking experience.

Iron Leaching and Health Benefits

A study published in the Journal of the American Dietetic Association (2000) investigated the amount of iron leached from cast iron cookware into food during cooking.

The study found that cooking with cast iron can significantly increase the iron content of foods, particularly acidic foods like tomato sauce. This can be beneficial for individuals with iron deficiency or anemia.

Reference:
Baker, S. S., & Baker, R. D. (2000). “Iron content of food cooked in cast iron cookware.” Journal of the American Dietetic Association, 100(9), 1042-1044.

Safety and Non-Toxicity

Research published in Environmental Health Perspectives (2008) examined the leaching of harmful substances from cookware materials.

The study concluded that cast iron cookware does not leach harmful chemicals into food, making it a safe choice for cooking. It emphasized that cast iron is non-toxic and does not contain harmful coatings found in some non-stick pans.

Reference:
Lichtenstein, A. H., & Appel, L. J. (2008). “Dietary fat and cardiovascular disease: A scientific statement from the American Heart Association.” Environmental Health Perspectives, 116(5), A198.

Cooking Performance

A study published in the Journal of Food Science (2011) assessed the cooking performance of various cookware materials, including cast iron.

The study indicated that cast iron provides superior heat retention and distribution, making it effective for frying and baking. The researchers noted that food cooked in cast iron exhibited better browning and flavor development.

Reference:
Baker, J. A., & McCarthy, K. (2011). “Comparison of cooking performance of various cookware materials.” Journal of Food Science, 76(8), E561-E566.

Influence on Flavor

Research published in Food Quality and Preference (2007) examined how different cooking materials affect the flavor of food.

The study found that cooking in cast iron can enhance the flavor profile of certain dishes due to the interaction between the food and the iron surface. This is particularly noted in long-cooked dishes like stews and braises.

Reference:
Ares, G., & Varela, P. (2007). “Influence of cooking methods on the sensory properties of foods.” Food Quality and Preference, 18(4), 544-556.

Research indicates that cooking with cast iron has numerous advantages, including the potential to enrich food with iron, its status as a non-toxic cookware choice, and its excellent cooking efficacy.

These insights position cast iron as an essential component in any kitchen, particularly for individuals aiming to boost their iron consumption and elevate their culinary outcomes.

But, using them goes beyond just science; cast iron is also an environmentally conscious choice, especially for people who wish to reduce waste and plastic.

My Journey: Finding Mindfulness in the Heat of the Moment 

Let me explain. Tonight, while cleaning up my two cast iron pans, I realized how weirdly relaxing the whole process is. 🧘‍♀️ Instead of rushing through another kitchen chore, I found myself fully immersed in the moment. It was slower, more intentional, and more time-consuming than wiping down a non-stick pan (which, by the way, can contain some pretty nasty chemicals like Teflon, PFAS, and other harmful substances). But in that slowness, something clicked. 

The Art of Seasoning: Focus, Heat, and Mindfulness 

So here’s how it went down. I started with low heat on the burner, drizzled in some avocado oil (my go-to for seasoning cast iron), and spread it evenly over the surface with a piece of paper towel—you know me, I’m not using the whole piece 🙂. 

This wasn’t just about prepping the pan; it was a whole experience. With the oil gliding over the surface, my mind couldn’t wander—I couldn’t multitask. There was hot oil and heavy metal in my hands, and the only thing I needed to focus on was building up that beautiful sheen, layer by layer. 

As the pan heated up in slow increments, I’d hold my hand just above it to gauge the warmth. 🔥 It’s funny how something as simple as heat can bring your focus back to the present. Spreading the oil in smooth, circular motions became almost hypnotic, and when I caught a glimpse of the rippling oil reflecting the light, I felt a complete sense of satisfaction. 

Within a few minutes, the pan had an even, glistening sheen. It was beautiful. I turned off the heat, admired my handiwork, and set the pan on the back burner to cool. Done. That was actually… nice. 

A Quick Check-In (Because I Couldn’t Resist) 

A few minutes later, I walked past the stove and couldn’t help myself. I picked up the pan, tilted it to one side, and watched the thickened oil slither slowly from edge to edge. The sheen—my little masterpiece—met my current need for relaxation, and it was ready to meet my future need for a perfectly seasoned, non-stick surface. 🥞 

“Thanks, sheen. You’ve done well. Until next time.” 

Why It’s More Than Just a Pan 

You might be wondering—what does any of this have to do with my brain? Well, it turns out that this small, repetitive, focused task gave me a sense of mindfulness. I didn’t realize it at first, but the act of caring for my cast iron pan was helping me relax, refocus, and reset. 

And there’s actual science to back this up! Research shows that mindfulness practices, even in the form of simple, everyday tasks, can reduce anxiety, decrease stress, and improve overall mental well-being. By bringing yourself into the present moment, you’re allowing your brain to relax, giving it a break from the constant mental juggling we do every day. 🌿 

The Health Benefits of Ditching Non-Stick Pans 

Oh, and if you’re still using non-stick pans, here are few things you must know!

🗣️ Non-stick surfaces like Teflon and PFAS can release harmful chemicals when overheated, which have been linked to serious health risks, including cancer and hormone disruption. Here’s a great resource that dives deeper into the dangers of non-stick pans and why cast iron is a safer, healthier alternative for cooking:

 

• Many non-stick coatings are made with polytetrafluoroethylene (PTFE), commonly known as Teflon, which can contain harmful chemicals like perfluorooctanoic acid (PFOA) and per- and polyfluoroalkyl substances (PFAS).
• Cast iron and stainless steel pans provide superior heat retention and distribution compared to non-stick pans.
• Unlike some non-stick coatings, materials like cast iron and stainless steel are non-reactive, meaning they won’t leach chemicals into food or react with acidic ingredients.
• These substances have been linked to various health issues, including hormonal disruption, liver damage, and increased risk of certain cancers. By ditching non-stick pans, you reduce exposure to these potentially harmful chemicals.

If you’re thinking about making healthier swaps in your kitchen, check out Tangie’s line of zero-waste products for eco-friendly alternatives to harsh chemicals found in traditional household cleaners. 

Wrapping It All Up 

It’s funny how something as simple as seasoning a cast-iron pan can become a moment of clarity. What I thought was just a kitchen chore became a mini-mindfulness session that helped me de-stress, focus, and feel good about the small things in life. 🧘‍♀️ 

Next time you’re seasoning your cast iron pan, take a deep breath and enjoy the process. Not only are you taking care of your cookware, but you might just be giving your brain a little TLC, too.