What is the shelf life of fresh lemon zest? Learn how long it lasts in the fridge and the best ways to store it to preserve its potent, citrusy aroma.
1 Answer
Lemon zest lasts for approximately 3-4 days in the refrigerator when stored properly in an airtight container.
Detailed Explanation:
Lemon zest, being the outermost layer of the lemon peel, contains volatile oils that contribute to its flavor and aroma. Once zested, these oils begin to degrade, leading to a loss of potency. To maximize its shelf life in the refrigerator, follow these steps:
Zest the lemon: Use a microplane, zester, or fine grater to remove only the colored part of the peel, avoiding the bitter white pith underneath.
Store immediately: Place the lemon zest in an airtight container as soon as possible after zesting. This minimizes exposure to air and moisture, which can accelerate spoilage.
Refrigerate: Store the airtight container in the refrigerator. The cold temperature helps to slow down the degradation process.
Check for spoilage: Before using, check the zest for any signs of spoilage, such as discoloration, a mushy texture, or an off odor. If any of these are present, discard the zest.
While lemon zest can last up to a week under ideal conditions, its flavor will diminish significantly after 3-4 days. For longer storage, consider freezing the zest.
Pro Tip:
To preserve lemon zest for longer periods, freeze it! Spread the zest in a thin layer on a parchment-lined baking sheet and freeze until solid. Then, transfer the frozen zest to an airtight freezer bag or container. Frozen lemon zest can last for several months and can be added directly to recipes without thawing.