How to tell if a lime is bad (and how to prolong it’s life)

How to tell if a lime if bad

How to tell if a lime is bad can be tricky, but it’s crucial for your recipes and your well-being. Fresh limes add a zesty kick to your dishes, while bad limes can leave a sour taste and ruin your meal. For signs of a bad lime, consequences of eating one and storage tips, keep scrolling. 

Hi, I’m Hazel

I gave up on skincare after years of issues with acne and sensitive skin.

But after going plant-based, my skin cleared up and even started to glow. Now I help women reveal their natural beauty with simple, delicious plant-based food.

I also used to be a nurse, and love nerding out on nutritional science (high-quality science, that is).

As usual, this post is based on the strongest nutritional evidence I could find with a focus on the simplest, most delicious foods

…because who has time to waste on actions that don’t work?

Woman with limes

The quick version:

You can tell a lime is bad when its skin is yellow or has brown spots, its texture is mushy, or it emits an unpleasant odor.

Signs your lime has gone bad

Appearance

  • Colour: Fresh limes are bright green. If it’s a yellow lime or has brown spots, it’s past its prime.
  • Texture: A bad lime feels hard or mushy. A good lime is firm yet slightly soft when you squeeze it.
  • Skin of the lime: Look for brown patches or soft texture. Those are signs of a bad lime.

Smell 

  • Fresh Scent: A fresh lime smells citrusy and clean.
  • Off Odour: If it smells sour or fermented, it’s an unpleasant smell indicating it’s a rotten lime.

Mould and Spots

  • Visual Inspection: Look for white, fuzzy mould or dark spots. These are clear signs of spoilage.

Feel the Lime

  • Weight: A good lime feels heavy for its size, meaning it’s juicy.
  • Dry and Light: A bad lime feels light and dry, indicating it’s an old lime.

Taste Test (If You’re Brave)

  • Flavour: A fresh lime tastes tangy and zesty. If it’s bitter or bland, it’s bad.
Slices of lime

How long do limes usually last?

Limes, like other citrus fruits, have a relatively long shelf life if stored properly. 

Whole fruit limes can last about a week at room temperature and up to a month when refrigerated. The best limes are firm, bright green, and heavy for their size. 

However, if limes are not stored correctly, they can become rotten limes quickly.

Storage tips to keep limes fresh

  • Refrigeration: Store limes in the fridge to keep them fresh longer.
  • Airtight Container: Use an airtight container or plastic container to keep them from drying out.
  • Avoid Moisture: Keep them dry to prevent mould. Store in a dry place or crisper drawer.
Bowl of limes

The best way to store limes

  • Whole limes: Keep in a dark place away from direct sunlight.
  • Cut limes: Place in a ziplock bag or plastic bag for best results.

Note: The best option for prolonging the shelf life of limes is refrigeration. 

By storing limes in the refrigerator, particularly in the crisper drawer, you can keep them fresh for up to a month. The cool, consistent temperature and humidity levels in the refrigerator are ideal for maintaining the freshness and quality of limes, preventing them from drying out or spoiling quickly.

What happens if you use a bad lime?

Using a bad lime can have several negative effects on your health and culinary experience.

1. Unpleasant Taste: A bad lime will likely taste off. It may be bitter, bland, or even have a fermented flavour. This can ruin the taste of your dish or drink, making it unappetising.

2. Health Risks: Consuming a spoiled lime can introduce bacteria and mould into your system. 

This can cause food poisoning, leading to symptoms like nausea, vomiting, and diarrhoea. Mould growth on limes can also trigger allergic reactions or respiratory issues in sensitive individuals.

Three limes - how to tell if a lime is bad

3. Nutrient Loss: A bad lime loses its nutritional value over time. Fresh limes and fresh lime juice are rich in vitamin C and antioxidants, which are beneficial for your health. Using an old or spoiled lime might mean missing out on some of these essential nutrients.

4. Appearance and Texture: A bad lime with brown spots, soft texture, or mould can make your food look unappealing. It might also have a mushy or slimy texture, which is not pleasant to eat.

To avoid these issues, always check your limes for signs of spoilage. Make sure they have a bright green skin, a fresh scent, and a firm texture. If your lime shows any signs of being bad, it’s best to discard it and use a fresh one instead. This ensures your meals are both delicious and safe to eat.

Should I just use store-bought lime juice?

Store-bought lime juice can be a convenient alternative to fresh limes, especially when you need lime juice on hand for cooking or cocktails. It has a long shelf life and can be found in almost any grocery store. 

The shelf life of lime juice is usually indicated by the best-by date on the bottle. An unopened bottle of lime juice can last for several months, while an opened bottle of lime juice should be stored in the refrigerator and used within a few weeks to maintain good quality.

However, while store-bought lime juice is convenient, it often lacks the vibrant flavour of fresh lime juice. If you’re looking for the best quality and flavour, fresh limes are the way to go. That said, store-bought lime juice is still a viable option for recipes where the freshness of the juice is less critical.

Conclusion

Knowing how to tell if a lime is bad is key to maintaining a healthy, plant-based diet. By checking the appearance, smell, and feel, you can ensure your limes are fresh and flavourful. Don’t let bad limes spoil your meals or your mood. Keep these tips in mind, and you’ll always have the perfect lime on hand.

FAQ: How to Tell if a Lime is Bad

What does a spoiled lime look like?

A spoiled lime often has a dull, faded colour. Instead of vibrant green skin, it may turn into a yellow lime or develop brown colour, brown patches, or brown spots. The skin of the lime may feel soft to the touch or show signs of mould and bold growth. These are all clear signs of spoilage.

How can you tell if a lime is good?

A good lime, or ripe lime, is firm but slightly soft when you squeeze it. It should have a bright green skin and a fresh, citrusy scent. The lime should feel heavy for its size, indicating it’s juicy. Avoid limes with a hard texture or any signs of dryness.

How do you know if limes are safe to eat?

Limes are safe to eat if they look and smell fresh. If the lime has a sour lime scent, mould, or an unpleasant smell, it’s best to avoid it. Cut limes should have a tangy and zesty flavour. If the flavour is bitter or bland, the lime is likely not safe to eat.

How long does a lime last?

The shelf life of limes depends on how you store them. Whole limes can last about a week at room temperature and up to a month in the fridge. To extend the shelf life of limes, store them in an airtight container, plastic container, or ziplock bag in the refrigerator. For longer shelf life, you can also freeze lime juice in an ice cube tray.

Is it ok to use old lime?

Using old limes is generally not recommended, especially if they show signs of spoilage like discolouration, soft texture, or unpleasant smell. While older limes may not necessarily make you sick, their quality and flavour will be compromised.

Can you eat a lime when it turns yellow?

Yes, you can eat a lime when it turns yellow, but it may not have the same tart flavour as a fresh green lime. Yellow limes are often overripe and may taste sweeter and less acidic. However, if the lime has brown spots or an unpleasant smell, it’s best to discard it.

Do overripe limes turn yellow?

Yes, overripe limes often turn yellow. This is part of the natural ripening process. While they may still be edible, their flavour and juiciness might not be as good as those of green limes.

Why are my limes small and yellow?

Small, yellow limes can result from being left on the tree for too long, or from improper storage conditions. They may also be a sign of overripe limes or a lack of nutrients during the ripening process. To get the best quality limes, store them in a dark place or refrigerator, and consume them while they are still green and firm.

References

Most references below will link to the original peer-reviewed study itself. However, sometimes I will link to a video over at NutritionFacts.org instead, which is by far the single best resource of brutally transparent nutritional evidence you will ever see. Dr Greger tells a great story about the realities of the science and if I think you will benefit more from one of his videos, the link will take you there instead.

Happy nerding!

Budiarto R, Mubarok S, Sholikin MM, et al. Vitamin C variation in citrus in response to genotypes, storage temperatures, and storage times: A systematic review and meta-analysis. Heliyon. 2024;10(8):e29125. Published 2024 Apr 10. doi:10.1016/j.heliyon.2024.e29125

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