When you remove your aligners, rinse them off right away to avoid bacterial accumulation. You can brush the aligners with a soft bristle toothbrush to get rid of debris and buildup. For extra-clean aligners, you can use the Invisalign cleaning system, including Invisalign Cleaning Crystals, which removes any lingering plaque in a short 15-minute soak. Whenever you rinse or soak your aligners, use only cool water. Hot water can warp your aligners, making them ineffective for teeth straightening.