Best to Buy
Walnuts are available year-round and harvested beginning in August.
Prep & Store
Walnuts are sold in the shell and shelled. Once shelled, walnuts can be chopped to the desired size and used raw or cooked.
Shelled and chopped walnuts can become rancid quickly and should be used within a week, refrigerated for up to six months, or frozen for up to one year. For long-term storage, it’s best to buy unshelled nuts.
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The information presented in the Food Guide is for informational purposes only and was created by a team of US–registered dietitians and food experts. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements, making dietary changes, or before making any changes in prescribed medications. Information expires June 2015.