Signs Your Lemon Has Gone Bad

Lemons are one of those ingredients I use all the time, in both sweet and savory recipes. In this guide, we’re going over how to tell if a lemon has gone bad, how long it lasts, and what to look for when choosing the best ones.

That way, you’ll always have fresh, juicy lemons when you need them.

And if you’re looking for lemon recipes to make next, my Brazilian Lemonade is a must-try. For something fresh and savory, try this Lemon Fennel Salad or my Air-Fried Lemony Falafel. They’re easy, bright, and perfect for spring or a hot summer day.

Can You Eat Bad Lemons?

I get this question all the time. If a lemon only has a little mold on the outside, you can usually wipe it off and still use the juice, but skip the peel. If it has a lot of mold or other signs of spoilage, it’s better to toss it. When in doubt, don’t risk it.

How To Tell If A Lemon Is Bad

Lemons can be a little hard to judge, so shelf life helps a lot. Whole lemons usually last 1 to 2 weeks at room temperature and up to 3 to 4 weeks in the fridge.

If they’ve been cut, keep them in the fridge and use them within 3 to 4 days. After that, they usually start to dry out and aren’t nearly as good.

• Signs of mold: Mold is one of the clearest signs a lemon has gone bad. A tiny spot on the peel can sometimes be wiped off, but if there’s a lot of mold, especially around the stem, it’s best to throw it out. And if the lemon also feels soft or mushy, don’t use it.
• Soft texture: As lemons sit, they start to lose their firmness. If the skin feels soft or you can press into it too easily, the lemon is past its best and should be tossed.
• Bruised or discolored skin: Fresh lemons should look bright and vibrant. If you notice pale spots, bruising, or brown and black discoloration, the lemon is starting to go bad.
• Fruit flies: It sounds funny, but fruit flies are often a sign that fruit in your kitchen is going bad. You’ll usually notice them when lemons are stored on the counter or in the pantry. If you see them, find the source right away and get rid of it before it becomes a bigger problem.
• Funny smell or taste: Lemons usually do not smell bad right away, so this is not always the first sign. But if a lemon smells off or tastes strange, it’s best to throw it out.

Fresh lemon juice and Store-bought lemon juice

Lemon zest or rind and lemon slices

Zest and lemon slices go bad after a day at room temperature but maintain flavor for a bit longer, up to one week, in the fridge in a freezer bag. Lemon slices last a maximum of five days in the fridge in a plastic wrap or freezer bag for your lemonade drinks needs.

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