Recently made some cakes which required baking at a higher temperature than I usually use.
When I took them out of the tray (one with 12 compartments), I noticed the silicone was discoloured. I thought initially that this was from a little overspill, but having got that off and put the trays through the dishwasher twice, they are still discoloured.
Is there anything I can do to get them looking a bit less grotty? I've already tried a little gentle scouring on the corner and using 'pink stuff' with no success.