How long can you keep cooked rhubarb?

Cooked rhubarb can be stored in the refrigerator for about 3 to 5 days when kept in an airtight container. If you want to keep it longer, you can freeze it for up to 6 months. When freezing, ensure it's cooled completely, then place it in freezer-safe containers or bags. Always check for any signs of spoilage before consuming.