How to Tell if a Watermelon is Bad

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While you may not think much about it, being able to tell when a watermelon is ripe is a useful skill to have. Not only can you save a lot of money by being able to take advantage of the best deals, but you’ll also end up with a better tasting watermelon. Here are the steps to follow to make sure you know exactly if the watermelon is bad:

image of watermelons

Irrespective of the health benefits of eating watermelon, consuming one that has gone bad can be detrimental as it causes food poisoning. Watermelon is a summer fruit most people enjoy having and you may easily get carried away and buy more than enough. When bought in bulk, the chances of them overstaying in your house is high and so is the probability of the fruits going bad.

A watermelon is one of the best summertime treats you can have. This delectable fruit is not only a delicious snack, but it can also be used in a variety of different ways. However, watermelons spoil quickly when they’re not properly stored. To avoid a bad watermelon, check to see if it’s too heavy for its size, if it has cracks, or if it feels mushy.

If you get in such a situation and wonder whether your overstayed watermelon has gone bad, our guide is here to help you examine it. This post will also provide you with tips to help you keep your watermelon for a longer time without going bad.

How to tell if a watermelon is bad?


If the watermelon is whole, you can only inspect its exterior to determine whether it is fresh or bad. Inspect the outside to see if there are deficiency signs such as the presence of mold and dark-colored spots or soft spots that you can easily poke your finger through. Tap the watermelon and if rotten, you will hear a liquid sound (squishy waters). A fresh watermelon should have a consistent pine green shade or strip appearance.

bad watermelons on display


Like most products, once the watermelon is sliced, the chance of going bad increases. Fresh watermelons should be deep red or pink and any other color such as black indicates that it has gone bad. It has also gone bad if the content is mushy and discolored or has grown something fuzzy. When bad, the flesh starts to wrinkle and contract and the flesh pulls away from seeds.

Interior of a bad watermelon


The smell should be sweet and fresh and in case of a foul or tangy smell, discard it.


Even though the other factors indicate that the watermelon is good, if you bite it and it tastes sour, it has gone bad and you should spit it and discard the rest.

Expiry date

The pre-cut watermelons come with an expiration date or a ‘best before date; if you suspect yours has gone bad, inspect the expiry date and if it is past, discard it.

Tips to make your watermelons last longer

• Store cut watermelons in an air-tight container in the fridge and consume within 5 days.

See also  How to Tell if Ginger is Bad?

• Refrigerate a whole watermelon at 55 °F/12 °C and consume within 2 weeks.

• Don’t store watermelon with products that release ethylene gas, such as apples or tomatoes, as they thin and soften the watermelon rind.

• Buy fresh ripe watermelon since this doesn’t go bad easily. You can easily determine if it is ripe by tapping it and listen for a hollow sound.


Watermelon is a nutrient-dense refreshing low-calorie snack that you should consume when fresh to enjoy all the benefits it has to the body. If you doubt whether it is good for consumption, evaluate its exterior, interior, smell, and taste- better be safe than sorry. This examination guideline will help you a great deal and the tips to keep your watermelon last longer will come in handy.

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