Watermelon is called watermelon because it was introduced to China from the Western Regions. Watermelon is one of the most common fruits in summer. It was planted in Egypt as early as 4000 years ago.

With the development of society, watermelons gradually spread to northern Europe, then to the Middle East, India and other places, and finally to China from the western regions. In ancient times, people used watermelon as a weapon to cool off the heat, and many proverbs related to watermelon came out.

Watermelon contains a lot of water, which can quench thirst and induce diuresis. It is also rich in protein, carotene, vitamins, calcium, phosphorus, iron and other minerals, which can supplement the nutrients needed by human body and lower blood pressure.

Method of selecting watermelon:

When choosing watermelons, you should observe the circle at the bottom. The bigger the circle, the thicker the peel, which will affect the taste of watermelon. Although watermelons are mostly green and red flesh, turquoise watermelons are the best. You can choose the right watermelon according to the color of the peel.

If you can't judge from the appearance, you can tap the watermelon with your hand, and there is obvious vibration on your hand. Watermelon gives off a "bang", indicating that the watermelon is ripe. If you hear the sound of "poop-poop", it means that the watermelon is overripe.

Watermelon preservation method:

Watermelons that have not been cut can be kept in a cool and ventilated place, or stored in the refrigerator for more than ten days. Cut watermelons need to be kept in the refrigerator for about 2-3 days.