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Storing watermelon properly allows it to retain its freshness, sweetness, and pleasant crunch for longer. The method you choose depends primarily on whether the fruit is whole or already cut. A whole watermelon can be kept at room temperature for a short time, but once opened, it should be quickly transferred to the refrigerator.

Watermelon is mostly water, and once cut, it becomes more vulnerable to loss of liquid, absorption of odors, and contamination. For this reason, it's important to use clean utensils, protect the exposed part well, and avoid leaving it out of the refrigerator for long periods.

How to choose a watermelon in good condition

Proper storage begins at the time of purchase. The watermelon should have an intact, firm rind free of cracks, deep dents, or soft spots. Small superficial scratches aren't necessarily a problem, but any damage should be carefully inspected.

The surface may appear dull and show a lighter or yellowish area where the fruit has been resting on the ground. This is normal and does not indicate deterioration.

The stem, when still present, can provide some information, but it's not a reliable indicator of ripeness. It's more important to check the weight: a watermelon should feel heavy for its size, a sign of a water-rich pulp.

How to store whole watermelon

A whole watermelon can be stored at room temperature if you plan to consume it within a few days. It should be stored in a cool, dry place, protected from direct sunlight.

It's best to avoid placing them near stoves, ovens, radiators, or particularly exposed windows. Heat accelerates spoilage and can make the flesh less crispy, especially during the summer.

The fruit should be placed on a clean surface, avoiding damp floors or areas where it could be knocked. If possible, it's helpful to periodically check the underside and slightly change its position, especially if the watermelon is to be stored for several days.

For longer periods, or when the house is warm, the refrigerator is a safer solution. A whole watermelon takes up a lot of space, but it can be stored on the bottom shelf or in the crisper drawer, as long as it isn't crushed by other foods.

Should I wash it before cutting it?

Before cutting, the watermelon rind must be washed carefully, even if it isn't going to be eaten. Cutting the outer surface of the watermelon can drag any residue from the rind onto the flesh.

Simply rinse the fruit under running water, scrubbing the peel with your hands or a clean food brush. Do not use soap or detergents.

After washing, the watermelon should be dried with paper towels or a clean dishcloth. The knife and cutting board should also be thoroughly washed, especially if they have previously been used for meat, fish, or other raw foods.

How to store cut watermelon

Once opened, watermelon should be quickly refrigerated. A half or segment still with its rind can be covered with a food-safe lid or placed in a large container.

The cut surface should be completely covered to limit moisture loss and prevent the pulp from absorbing odors present in the refrigerator. It's best to avoid direct contact with highly aromatic foods, such as onions, aged cheeses, or spicy dishes.

If you're dicing the watermelon, the best solution is to transfer it to a clean, airtight container. The pieces should be arranged without squashing them, and any liquid that accumulates at the bottom can be drained if it becomes too much.

Watermelon doesn't necessarily have to be consumed within 24 hours. If cut with clean utensils, refrigerated quickly, and stored properly, it can generally keep for about three to four days. However, during the first 24 to 48 hours, it retains its aroma, crunchiness, and juiciness best.

How long can it stay out of the refrigerator?

Cut watermelon shouldn't be left at room temperature for long periods. During a lunch, party, or picnic, it's best to serve only the amount needed and keep the rest refrigerated.

On hot days, the timeframe must be even shorter. The pulp, rich in water and sugars, creates favorable conditions for deterioration when exposed to heat.

If the watermelon needs to be transported, it can be placed in a cooler with ice or coolers. It's important to avoid letting melted ice enter the container directly and come into contact with the pulp.

How to recognize a spoiled watermelon

Before consuming preserved watermelon, it's helpful to check its appearance, smell, and texture. A slightly less crispy flesh may still be usable, but it shouldn't have any slimy areas, mold, or a fermented odor.

Excessive liquid separation, accompanied by a very soft texture, may also indicate that the fruit is past its prime. If the flavor appears unusual, pungent, or slightly alcoholic, it's best not to consume it.

If mold is present, it's not enough to simply remove the visible part. Watermelon is a soft, water-rich food, so the spoilage can spread beyond the apparently affected area.

Can you freeze watermelon?

Watermelon can be frozen, but after thawing, it loses the crispy texture of fresh fruit. The flesh becomes softer and tends to release a lot of liquid.

To freeze it, remove the peel and seeds, then cut the pulp into cubes. The pieces can be spread out on a tray, without overlapping, and transferred to the freezer. Once solid, they can be stored in a bag or tightly closed container.

Frozen cubes are perfect for smoothies, granitas, sorbets, and summer drinks. They can be used directly from frozen, without completely thawing them.

In conclusion

Whole watermelon can be stored for a few days at room temperature, as long as it's kept in a cool, dry place away from sunlight. In very hot weather or if you want to extend its shelf life, it's best to store it in the refrigerator.

After cutting, the flesh must be protected and refrigerated promptly. An airtight container or a tightly fitting lid helps preserve its moisture and flavor. Consuming watermelon within the first 24-48 hours ensures the best quality, but proper storage can keep it safe for consumption for several days.