Material
Cast iron
Cast Iron needs stain treatment matched to its exact composition, coating and tolerance for moisture, chemicals and abrasion. Start with the mildest compatible route.
- SurfaceSemi porous
- WashingSpot only
- Colour run riskMedium
- Reviewed2 September 2026
What cast iron can and cannot take
- Heat Tolerates it
- Water and soaking Use with care
- Acids, including vinegar Avoid
- Strong alkalis Use with care
- Solvents Use with care
- Chlorine bleach Avoid
- Abrasives Use with care
Always test on a hidden area first and let it dry before you treat the visible mark.
General rules for cast iron
For seasoned cookware, hand wash with a little mild soap, dry completely and renew only a very thin oil film. Never soak or dishwash it, and stop if rust or seasoning loss appears.
Check the label
Identify bare seasoned cast iron, enamelled cast iron or a painted architectural item. These finishes need different aftercare.
Stains on cast iron
- Body oil Lift free oil from cast iron, then clean a small area with a maker-approved mild detergent solution and a sof...
- Breast milk Blot the spill, identify the finish and use a controlled cold clean only where permitted. Where the maker per...
- Coffee Wipe coffee off cast iron promptly with a soft cloth. Check the finish and maker care rules first. Do not tre...
- Cooking grease Let Cast Iron cool safely, wipe out the grease, hand wash briefly with mild washing-up liquid and dry complet...
- Nail polish Lift free polish gently if the face permits contact. A maker-approved mild damp wipe can clear loose residue,...
Cast Iron can be damaged by a cleaner that is harmless on another surface. Identify the substrate, coating, finish and adjacent parts before treating a stain.
Use the least aggressive route
For seasoned cookware, hand wash with a little mild soap, dry completely and renew only a very thin oil film. Never soak or dishwash it, and stop if rust or seasoning loss appears.
Judge only when dry
A remaining patch may be residue, a changed patina, coating loss or absorbed contamination. Stop if a hidden test changes colour, gloss, texture, adhesion or strength.
Sources
What we checked and when. Where a manufacturer instruction disagrees with anything here, follow the manufacturer.
-
Lodge cast iron cleaning and care
manufacturer
Cast-iron manufacturer guidance permits warm soapy hand washing, requires complete drying and a thin oil layer, and excludes soaking and dishwashers because they can remove seasoning or cause rust.
Checked 2 September 2026
-
Lodge enamelled cast iron cleaning
manufacturer
Manufacturer directions require cooling before warm soapy cleaning, a gentle dish soap and non-damaging tools, and warn that citrus cleaner can dull enamel gloss.
Checked 2 September 2026