If you’re an avocado lover, you know that once it’s cut, the fruit tends to brown quickly, making its preservation tricky. But did you know there’s a simple and effective method to keep your avocado halves fresh for up to 72 hours in the refrigerator?
Why does avocado brown after being cut?
When an avocado is cut, its flesh comes into contact with air, triggering an oxidation process. This enzymatic reaction is responsible for the browning of the exposed surface. Although this phenomenon is natural, it can affect the appearance and taste of the avocado, making it less appetizing.
The onion trick: a natural and effective solution
To counter this issue, a surprising yet proven method involves using an onion. Here’s how to do it:
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Preparation: After consuming one half of the avocado, leave the pit in the unused part. This reduces the surface exposed to air.
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Pairing with onion: Place this half of the avocado, cut side up, in an airtight container. Add a quarter or half of an onion cut into pieces.
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Storage: Seal the container tightly and place it in the refrigerator.
The sulfur compounds released by the onion act as natural preservatives, slowing down the oxidation process of the avocado. Contrary to what one might think, this method does not transfer the onion flavor to the avocado, allowing you to enjoy it in all its freshness.
Other methods to preserve the freshness of your avocado
If the idea of using an onion doesn’t appeal to you, other techniques can also be used:
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Lemon or lime juice: The acidity of these citrus fruits slows oxidation. Brush the exposed surface of the avocado with lemon or lime juice, then wrap it in plastic wrap before refrigerating.
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Olive oil: Applying a thin layer of olive oil on the flesh of the avocado creates a barrier against air, delaying browning. Then wrap the avocado in plastic wrap and place it in the refrigerator.
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Cold water: Submerge the half avocado, cut side down, in a container of cold water. This method limits air contact, but it’s best to consume the avocado in the hours following to avoid it becoming watery.
Additional tips for optimal preservation
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Keep the pit: When consuming only one half of the avocado, leave the pit in the remaining part. This reduces the surface area exposed to air and slows oxidation.
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Use plastic wrap: Wrap the cut avocado in plastic wrap, ensuring it makes direct contact with the flesh. This barrier limits air exposure and prevents browning.
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Refrigeration: Always place your cut avocados in the refrigerator. The cold slows down the oxidation process, extending the fruit’s freshness.
How long can you store a cut avocado?
With these tips, your cut avocado can stay fresh for up to 72 hours in the fridge. However, for optimal taste, it’s best consumed within 24 hours of cutting.
Thanks to these simple and natural methods, you can now keep your avocado halves fresh longer and reduce food waste. Whether you choose the onion trick or another technique, the key is to limit the exposure of the avocado flesh to air to prevent oxidation. This way, you can enjoy this delicious and nutritious fruit at your own pace, without worrying that it will spoil too quickly.
