Can you use a cast iron pan on a glass-top stove?

In this article, we will answer the question “Can you use a cast iron pan on a glass-top stove?”, and how to protect the glass stovetop from cast iron?

Can you use a cast iron pan on a glass-top stove?

Yes, you can use a cast iron pan on a glass-top stove but it does not mean that you should. No matter how careful you are, using the cast iron pan on a glass stovetop is a risky business. 

The smooth finish of the glass stovetop looks exquisite and we understand why you would be cautious before using any type of cookware on your glass stovetop. 

A single scratch or a buildup scum can ruin the whole appearance of the glass stovetop. We made sure to include everything you need to know about protecting your glass stovetop from scratches in this article.

Why should you never use cast iron pans on a glass stovetop?

The weight of cast iron pans 

Although the glass stovetop is designed to withstand heavyweights, you should not be testing its endurance and we tell you why that is. Cast iron pans are already heavy and filling them with soups and stews will only make them heavier. 

If you are slightly uncareful, you can easily drop the heavy pan on the glass stovetop while lifting it. This will result in a permanently damaged glass stove top that is past the stage of saving and needs to be replaced.

Uneven bottom of the cast iron cookware 

To ensure the even dispersion of heat throughout the food and the pan, it is important to use flat-bottomed cookware on the glass stovetop.

Using cast iron pans on the glass stovetops is a resounding no due to the uneven or burred bottom of the cast iron pans. 

The ridges on the bottom of the cast iron pans not only interfere with the even conduction of heat but may also scratch your beloved glass stovetop. Mind you the scratches may not necessarily be shallow. 

The size of cast iron pots and pans 

To ensure efficient cooking, the size of the cookware should not be bigger than one inch of the size of the burner. Due to the large size of the cast iron cookware, you may need to increase the cooking time. 

Prolonged cooking periods will damage the heating element due to the heat being trapped in the bottom surface of the glass stove top for too long.

The surface finish of cast iron 

Unless the cast iron is coated with porcelain enamel, the rough finish of the cast iron pans paired with its uneven bottom is not made to be used on a glass stovetop.

What’s the appeal of the glass stovetop?

The smooth surface of the glass stovetop with no coils in between not only looks visually appealing but also serves a purpose. It prevents the food from falling into difficult-to-reach nooks and crevices. The flat surface of the glass stovetop makes cleanup a whole lot easier.

In addition to this, the glass stovetop ensures even heating of your food and it does so by working on the principle of induction. The most suitable cookware for glass stovetop includes stainless steel, copper, and aluminum pans with a flat bottom and medium weight.

How to protect the glass stovetop from cast iron?

Do not slide the pans 

Learn to lift and not slide your favorite cast iron pan on the glass stovetop. Lift with both hands for a strong grip and a reduced likelihood of dropping the pan on the glass stovetop. 

Wash cast iron before heating

Wash your cast iron pan before and after every use. The cast-iron pans act as a magnet for oil and food deposits that carbonize when exposed to high temperatures. 

The carbonization can leave stains and black smudges on the surface of the glass stovetop. These stains are not always easy to clean, so it is better to be cautious. 

Using a heat diffuser

A heat diffuser not only acts as a buffer between the bottom of the cast iron pan and the glass stovetop but also improves the heating efficiency of the cast iron by promoting even distribution of heat. 

How do I prevent scratches on my glass stovetop?

The safety rules for using cast iron cookware on a glass stovetop also apply to ceramic and stoneware. Always choose a flat-bottomed pan over a round-bottomed pan because they sit more comfortably over the glass stovetop and can easily be lifted. Clean the spills right after they happen so that they do not get stubborn over time. 


In this article, we answered the question “Can you use a cast iron pan on a glass-top stove?”, and how to protect the glass stovetop from cast iron?


Hello, I'm Sana Ameer. I'm a student of Food Science and Technology at UVAS. I like to bake and I aspire to become a Food blogger.