On 08/10/2019 08:21, Brian Gaff wrote:
It will burn off with a terrible pong so don't cook in it till its gone!
I'm thinking a good clean then some kind of graphite based stuff.
Brian

Agree completely about cleaning. Graphite is one option, the other thing
which will take the temperature is a pure silicone oil. Either as a
spray or the liquid which is sold for lubricating waste pipe fittings.