1, color. Melons with smooth surface, clear patterns, obvious lines and yellow bottom are ripe melons; The surface is fuzzy, dim, mottled and unclear, and it is an immature melon.
2. Listen to the sound. Put your ear near the watermelon. Pat watermelon with your palm or play with one finger. If it is cooked, it will give off a bang. If it is raw, it will make a "dang" sound. If it is ripe, it will make a "poof". You can also put watermelon in your ear and squeeze it gently with your hands, and the ripe melon will crack.
3, look at the melon handle. Green is ripe melon; Dark brown, fluffy, fragile, curly beard tip turned yellow and withered, which is a melon picked prematurely; The handle of the melon has dried up and it is a "dead vine melon" with poor quality.
4. Look at the head and tail. The two ends are symmetrical, the navel and pedicel are deeply sunken, and the good melon is full around; The quality of melons with big head and small tail or thick pointed tail is poor.
5. Specific elasticity. The skin of melon is thin, and it is fragile when pressed with fingers, which is a cooked melon; Scraping with nails will crack, and the melon will be soft and ripe.
6. Use your hands. Those who feel empty are ripe melons; All that feels heavy are raw melons.
7. Try the specific gravity. It is ripe melon that floats when thrown into the water; It is the raw melon that sinks. If it is two watermelons of the same size, the ripe watermelons will be lighter. Moreover, cooked melons will float when put in water, and raw melons will sink.
8. Look at the size. The same variety, the big one is better than the small one.
9. Look at the shape. The melon body is neat and symmetrical, grows normally and has good quality; Melons are deformed, grow abnormally and have poor quality. Choose watermelon with smooth skin, obvious lines and well-proportioned figure. Watermelon with sharp head and crooked brain is definitely not delicious. Pay special attention to the hips of watermelon, which should be full around and deep in the middle. The head of melon vine is green, and others, such as dark brown and yellow, are not delicious. Touching the surface, melons with smooth and hard skin are generally better, but the skin is not soft and sticky.