Knives discoloured!

To remedy this put a little lukewarm water in a mug, add some lemon juice and bicarb/baking powder, put in the knives as this fizzes and leave for a short time, then remove and hand wash, I do this with teaspoons when they become stained.

Babs03

To remedy this put a little lukewarm water in a mug, add some lemon juice and bicarb/baking powder, put in the knives as this fizzes and leave for a short time, then remove and hand wash, I do this with teaspoons when they become stained.

I thought the OP meant the handles of the knives, not the blades.

To clean teaspoons yes, but don’t think that would restore the cream handles?

What are the handles made of?

Whoops sorry, not sure about knife handles 🫣

If they are bone they should never soak or go in a dishwasher.

I’ve been washing them in the dishwasher for years and years. As I said, it has only happened in the last few weeks. I’m stumped!

I would be surprised if they weren’t bone handles and if they are I’m surprised they survived the dishwasher. Have they been re-handled at some point? Firth Brearley is one of the oldest cutlery names and has an interesting history. It was Harry Brearley who invented a steel that wouldn’t stain when used with food. Hence stainless steel.
Sorry I can’t throw any light on why they have discoloured.

I have never immersed bone handles in washing up water let alone put them in the dishwasher. They just get a a brief dip and a wipe with dishcloth or swipe with brush.