Our slider lids are designed to close tightly to prevent as many leaks as possible, but that can also cause them to retain liquid underneath the slider. For that very reason, the slider is designed to be removable for thorough cleaning. You can view our video tutorial on how to easily remove and replace the slider lid. Also, we recommend rinsing or dishwashing the lids immediately after each use.
Our silicone components, including the gasket and slider inserts, are made clear with health and safety concerns in mind. While we could make them a different color to avoid as much staining, this would decrease visibility should any mold or beverage items become stuck in the lid.
When the lids are used with dark beverages, they may become stained over time. We recommend rinsing them or fully washing them after each beverage is consumed to avoid staining and keep your lid pretty for as long as possible. If your silicone becomes stained, we recommend rinsing or soaking in a baking soda or vinegar solution to lift the stains. We do not sell individual lid pieces separately but replacement lids can be purchased.