This is probably so-called rainbow discolouring. All stainless-steel pans can show up some rainbow discolouring. This discolouring could be caused by several circumstances such as a reaction to a certain type of water, a reaction to calcium in the water, salt that has been added to the water, dishwasher detergent, or starchy ingredients such as pasta, pulses, and potatoes. These discolorations are completely harmless and can be easily removed, using cleaning vinegar and a washing-up brush.
Special products for stainless steel are also available.
Was this article helpful?
Articles in this section
- The bottom of my pan is not completely flat, is this correct?
- How can I remove brown/black spots from the non-stick layer of my cooking pan?
- My cast iron or enamelled pan has burnt food on the inside. What can I do?
- Can I use my Greenpan on my AGA oven/hob?
- My stainless-steel pan has discolouration or white spots on it. How can they be removed?
- Removing stickers
- How do I Clean and store my Greenpan
- Strange smell while cooking on gas
- Stains on the hob
- My stainless-steel pan shows discolouring after cooking on gas