Cast iron cookware is known for its strength and ability to hold heat, yet can develop various forms of damage, resulting in pitting. Pitting — Small and localized areas where the metal surface has corroded or eroded, typically creating a rough texture that lowers performance in cooking. In this story: The roots of pitting, its ramifications and how to avoid it
Causes of Pitting
Chemical Erosion: This is one of the leading causes of pitting where moisture reacts with an iron surface.castironcare (ad) On the other hand, when cast iron is not seasoned– or if it has been improperly prepared and maintained — this reaction can cause rust to form as well13.
Thermal Shock: Quick changes in temperature may also cause the pitting to come about. Over time, when subjected to extreme heat followed by a rapid cooling process (like placing an oven-hot skillet directly into cold water or onto wet countertops), stress fractures may develop in the metal which then appear as pitting24.
Acidic Foods: Tomato-based or vinegar based sauces can all contain acidity, which eventually wear away the seasoning of a pan and allow for rust. The acids can begin to play havoc with the seasoning layer, causing bare metal underneath it to be exposed and in contact again (briefly) with water and oxygen15.
Implications of Pitting
Cooking Performance: Pitting on the GriddleSurface may result in uneven cooking, since food is more likely to adhere to rough or damaged areas than it would a smooth and heavily seasoned surface. It can impact flavour and texture, among other things36.
Aesthetics and Collectability: In addition to being an eyesore, pitting can decrease the market value of a collectible piece. Most collectors want nicer examples that don’t have a bunch of wear and tears12.
Preventive Measures
Good Seasoning: Periodically seasoning cast iron ware provides a barrier to prevent moisture from contacting the metal. Welding or Soldering Tips56: Stick to high smoke point oils for better results.
NO FAST CHANGING: Hot and cold cast iron slowly to prevent shock.writeValue( 1 ) Don’t put hot pans in cold water or on a cold surface24
Avoid Cooking Acidic Foods in Cast Iron (unless it is well-seasoned). If you need, use enameled cast iron so that the seasoning does not spoil13.
Learn how and why cast iron cookware pits | Keep your favorite kitchen tools in top condition for years to come with this helpful guide.
