“To prevent foodborne illness, store beet juice in a clean, airtight container in the refrigerator for up to 2 days,” Wiemann suggests adding juice from a lemon or lime to help preserve the juice a little longer.
For those who don’t have as much time, or the necessary tools, to prepare beetroot juice at home several times per week, Schimmelpfenning suggests trying beetroot powder, which is shelf-stable and great for on-the-go nutrition.
If buying juice from a store, look for 100% pure organic beet juice that is freshly pressed, not made from concentrate, and doesn’t contain any other ingredients (except a small amount of lemon juice for preservation).