Getting the smell out of silicone ice cube trays
I have some silicone ice cube trays, like the ones used at bars to make large, square ice cubes. The problem is these trays have a very plasticy smell, and the ice cubes take on the flavor, such that it alters the flavor of a drink when the cube melts fully. I have had these for over a year, washed them thoroughly in soap and water, but they still have the same smell and flavor.
It's worth noting that my normal ice cube trays don't have any issues, so it is an issue with the tray, not just "freezer smell".
Anyone have any ideas? Thanks so much!