This move is absolutely widespread, and the sound made by immature watermelons when shooting is quite dull and low. Ripe watermelons will have a crisp sound when patted by hand. If the sound is empty and there is a strong vibration in your hand, it means that the watermelon is overcooked and it is not delicious to buy home.

The second trick: look at the color.

When you buy watermelons, you will see that the skins of watermelons in the same car are deep and shallow, some are smooth and some are not so smooth. Try to choose watermelons with darker colors and smoother skins, because such watermelons will taste more mature and sweeter.

The third measure: look at the lines.

Some watermelons have very clear surface lines and distinct patterns, so they naturally mature. If the lines on the epidermis are not particularly clear or distorted, then this watermelon may not be naturally mature and will not be very sweet to eat.

The fourth measure: look at the vines.

Many people have heard of the expression "dead vine". Although these melons are mature, they grow on withered vines, and their nutrition and sweetness can be imagined. If the vines are bright green, watermelons are fresh. If the vine is yellow, it is not necessarily the legendary "dead vine" but it must be stale.

The fifth measure: look at the navel of the melon

There will be a small round depression at the other end of the vine, which is the navel of watermelon. The smaller the navel, the thinner the skin and the sweeter the taste of watermelon. When the navel is big, the skin will be thick, and the watermelon will not taste so sweet.