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You can wash the jars by hand, or you could sanitize them in the dishwasher. Make sure to thoroughly rinse away all the detergent so your batch of pickled beets isn’t compromised. Because the jars will be submerged in a hot bath and filled with hot liquid, there shouldn’t be any issue with them being disinfected. Put a reminder on your calendar, and wait at least 2 weeks before you crack open a jar. You can definitely let them sit for longer, even for up to 1 year. You could give jars of beets as gifts. Create cute labels and stick them on the jars and give them away at the holidays. Once you open a jar of beets, it’ll need to be stored in the fridge to help keep them good for longer. After you eat some, just make sure to refasten the lid tightly. If you notice any mold or odd smells when you open the jar, discard the beets.

Summary:
Clean the glass jars and lids with hot water and detergent. Let the beets marinate for at least 2 weeks before you enjoy them. Store opened beets in the fridge for up to 3 months.