To keep your Invisalign trays clean, follow these simple steps. First, rinse the aligners with lukewarm water whenever you remove them. Then, gently brush them using a soft-bristle toothbrush and clear, antibacterial soap or non-abrasive denture cleaner. Avoid using toothpaste. It’s also important to soak the trays occasionally in a denture cleaner or Invisalign cleaning crystals. Remember to store your aligners in their provided case when you’re not wearing them to prevent damage or loss. Finally, maintain good oral hygiene by brushing and flossing your teeth regularly. By following these practices, you can keep your Invisalign trays clean and maintain optimal oral health throughout your treatment.