Cast Iron Maintenance – Frequently Asked Questions
Rust forms when the pan is exposed to moisture. This can happen if the pan is not dried properly after washing or if it is stored in a damp place. Always dry fully on low flame and apply a thin coating of oil before storing.
Cast iron does not need frequent washing. For tawa, appam pans, and paniyaram pans, simply wipe after each use. Wash only if necessary (once in 15–20 days). Other cast iron pots can be washed regularly but must be dried and oiled immediately.
Mild soap can be used occasionally, but avoid strong detergents. Heavy soap use may strip the seasoning and reduce non-stick performance. If the seasoning weakens, simply re-season the pan.
Food sticks if the seasoning layer is weak or if you cooked acidic food too early. It may also stick if the pan was not preheated properly. Re-season the pan with oil and onions, and heat it well before cooking.
Scrub the rusted area gently, wash, dry completely on flame, apply oil, sauté onions, and wipe clean. This will rebuild the seasoning. For heavy rust, repeat the process 2–3 times. Light Rust: • Scrub gently, wash, dry on flame, apply oil. Baking Soda Method: • Make baking soda paste, apply 20 mins, scrub, wash, dry, oil. Moderate Rust: • Scrub with steel wool, wash, heat dry, apply oil, sauté onions, wipe. Deep Rust: • Heavy scrubbing, wash, heat dry, oil on low flame 10–15 mins, repeat seasoning. Prevention: • Always dry fully. • Apply thin oil coat. • Never store with moisture.
Yes, but only after the pan is well-seasoned. In a newly seasoned or brand-new pan, acidic foods may strip the seasoning. Avoid them during the first few uses or transfer the food immediately after cooking.