As you work with the silicone tray, it will stain. You can remove almost all stains by applying a coat of the Honey Medium, currently found in the New Honey Medium Starter Kit over the top of the tray and then peel it off once dry. We've found it will remove most stains, if you prefer to try and keep the tray as clean or stain-free as possible. 

*Depending on how long the stain has set, the honey medium may not remove all stains and this should be expected.