First, look. No matter what variety, the skin lines are clear, the colors are bright, the pedicels and navel parts are sunken inward, and the roots of vines are thick.
Second, touch. Good melon skin is smooth and firm to the touch.
Third, ok. Mature watermelons are relatively light in weight. The same variety of watermelon with similar size, the lighter the better.
Fourth, play. Hold the watermelon in your hand, flick it with your fingers and make a crisp sound of "dong, dong". It is better to shake the hand holding the watermelon. If the watermelon makes a muffled sound and feels soft, it is usually overcooked.
Extended data:
Taboos for eating watermelon:
1, Chinese medicine experts believe that watermelon is a cold food, which is easy to hurt the spleen and stomach. Therefore, people suffering from deficiency-cold of spleen and stomach, chronic enteritis, gastritis and duodenal ulcer, or loose stool had better eat less. Normal people should not eat more, otherwise it will damage the spleen and stomach and cause indigestion or diarrhea.
2. People with diabetes should not eat watermelon. Watermelon contains about 5% sugar, mainly glucose, sucrose and some fructose, which means eating watermelon will increase blood sugar. Normal people can keep their blood sugar and urine sugar at a normal level because they can secrete insulin in time.
People with diabetes are different. Eating too much watermelon in a short time will not only increase blood sugar, but also lead to acidosis and even life-threatening due to metabolic disorder.
3. Eat less iced watermelons. Although eating iced watermelon on a hot day has a good effect of relieving summer heat, it is very irritating to the stomach and is easy to harm the spleen and stomach, so we should pay attention to grasping the delicious temperature and quantity.
Watermelon is best placed on the lowest floor of the refrigerator, where the temperature is about 8- 10℃, and the temperature is also the best. Don't eat more than 500 grams of watermelon at a time. Chew slowly. For people with dental caries (tooth decay) and tooth allergies, they will feel sour and painful after catching a cold, and people with poor gastrointestinal function are not suitable for eating iced watermelons.
4. Patients who have a cold and fever in summer often use watermelon to replenish water to reduce fever, but because it belongs to sweet and cold food, it is not suitable for colds and early colds, especially patients with symptoms such as chills and sweating.
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