How to tell if a watermelon is rotten How to tell if a watermelon is ripe

Watermelon is the most commonly eaten fruit in summer. When people buy watermelons, they are faced with carts and piles of watermelons and don’t know how to choose. They are afraid of buying rotten watermelons, or underripe or overripe ones. So how can we judge whether the watermelon is rotten? How can we judge whether the watermelon is ripe? The following editor will teach you a few tricks.

How to tell if a watermelon is rotten How to tell if a watermelon is ripe

1. How to tell if a watermelon is rotten

Usually, when judging whether a watermelon is rotten, you can use the specific gravity method to judge. The specific gravity of watermelon to water is different at different times. For example, the specific gravity of water is 0.9-0.95. When choosing a watermelon, you can put the watermelon in water and observe it. If it sinks completely, it means that the watermelon is raw. If most of the watermelon floats to the surface, it means that the watermelon is overripe and is about to go bad.

2. Judge whether the watermelon is ripe by touch

To judge whether a watermelon is ripe, you can touch the surface of the watermelon with your hand. The surface of the watermelon will give people a smooth feeling, while an unripe watermelon will feel a color when touched. The difference between the two is very obvious, and you will understand it after trying it.

3. Judge whether the watermelon is ripe by listening to the sound

You can also judge whether a watermelon is ripe by listening to the sound. Split the watermelon with one hand and hold it in your hand, then use the other hand to knock on the surface of the watermelon. If the watermelon makes a low-pitched sound of "bang bang bang", it means the watermelon is fully ripe and you can buy and eat it with confidence. If the watermelon makes a solid "dong dong dong" sound when knocking on it, it means the watermelon is not yet ripe and is likely to be raw, so it is not suitable to buy or eat it.