Like most raw produce, turmeric root has a relatively short shelf life in the refrigerator. Even when stored correctly, it will only stay good for about a week or so. Before placing your turmeric into a container or plastic bag, wrap in a paper towel. Then seal in a plastic bag or airtight plastic container

Check back in on your roots every few days if you don’t plan on using them right away. If any mold has appeared on the surface of the skin, remove them with a knife or hand grater, ensuring that you’ve removed a bit of the infected skin with it. Once you remove the mold, make sure you also replace the paper towel as well. This should also probably indicate that your roots should be used within the next few days before they go bad.