Korean braised lotus root can typically be stored in an airtight container in the refrigerator for up to 3 to 4 days. It's important to let the dish cool completely before refrigerating it. When reheating, you can use a microwave or stovetop until heated through.  If you plan to store it for longer, consider freezing it. Freeze the braised lotus root in a freezer-safe container for up to 2 to 3 months. When ready to eat, thaw it overnight in the refrigerator before reheating.