Yes, preserved lemons can eventually go bad, though they have a long shelf life. They don't "go off" in the same way as fresh lemons, but their quality can deteriorate over time.
Here's a more detailed explanation:
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How Preserved Lemons Last: The preservation process (typically involving salt and lemon juice) inhibits the growth of harmful bacteria, extending the shelf life considerably.
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Signs of Spoilage: While they last a while, be mindful of these indicators:
- Mold: This is the most obvious sign of spoilage. Discard immediately if you see any mold.
- Unusual Odor: If the lemons smell "off" or significantly different than their initial briny, citrusy aroma, it's best to err on the side of caution.
- Slime: A slimy texture on the lemons or in the brine can indicate bacterial growth.
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Storage Matters: Proper storage significantly impacts shelf life.
- Refrigeration: Always store preserved lemons in the refrigerator after opening.
- Submerged: Ensure the lemons are fully submerged in the brine. Add more lemon juice if necessary.
- Clean Utensils: Always use clean utensils when handling preserved lemons to prevent contamination.
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Changes Over Time:
- Texture: The peel will soften considerably over time.
- Flavor: The flavor will become more intense and pickled. These changes are normal and often desirable, up to a point.
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How Long They Last: Preserved lemons can last for months, even up to a year, in the refrigerator if stored properly. However, their quality will gradually decline.
In summary, while preserved lemons have a long shelf life, they can eventually spoil. Monitor for signs of mold, unusual odors, or slime. Proper storage in the refrigerator, ensuring they are submerged in brine, will help to maximize their shelf life.
