Unlike during traditional orthodontic treatment, eating with Invisalign trays is almost exactly like eating without them! There are virtually no foods that you have to avoid during an Invisalign treatment, as you can simply take your aligners out before eating. Chewing gum is typically discouraged since it can stick to your retainers, and smoking can cause them to become discolored. While drinking water is acceptable, coffee, tea, and red wine can cause staining, and all hot beverages can warp the aligners. However, taking your aligners out for these activities will not help because it will just lengthen treatment time or even lead to the reversal of orthodontic problems. Dr. Glassman always encourages patients to brush their teeth and clean their aligners after each meal to maintain a good standard of oral hygiene. Because immediate brushing is not always an option, an alternative solution is to rinse the aligners with warm water as soon as possible.