Kiwifruit, like many fruits, will be soft and rotten in a day or two once it becomes soft and mature. Therefore, when consumers buy kiwifruit, they should generally choose the fruit that is in a hard state as a whole. Pay great attention to whether the fruit has mechanical damage. You can't buy those with small pimples, soft spots or broken ones. Because as long as there is a little damage, the wound will quickly soften, then sour, or even fester, making the whole fruit soft and stale before normal ripening, seriously affecting the edible quality of kiwifruit. However, hard kiwifruit is not delicious. The sugar content is very low, and the fruit is very sour, which makes people tingle. Because it contains a lot of protease, it will decompose the protein of tongue and oral mucosa, causing discomfort. So kiwifruit must be cooked before eating. It takes several days for kiwifruit to mature, and many impatient people often can't wait. If you want it to ripen quickly, you might as well put kiwi fruit with other ripe fruits. In this way, the natural ripening gas "ethylene" emitted by apples, bananas, tomatoes and other fruits will infect kiwifruit and make it soft and sweet. When ripe, gently press both ends of kiwi fruit with your fingertips. If you feel no longer hard, the pressed place is slightly deformed, but it is not very soft, which is the best eating state. Cut and dig with a spoon, just sweet and sour. Kiwifruit can be eaten after meals. It contains a lot of protease, which helps digestion. Look at the hardness, touch the whole body of the fruit carefully, and choose the fruit with hard texture. Any fruit that is soft as a whole or has soft spots locally should be avoided as much as possible. If you choose, you should eat it immediately after you get home. Look at the appearance. The fruit is full, harmless and disease-free, and the light green near one end is the best. The number of epidermal burrs varies from variety to variety. Look at the size of small fruits in taste and nutrition is not worse than big fruits, do not blindly pursue big fruits, and do not choose unusually large fruits. Look at the color. Kiwi with rich green flesh, sweet and sour taste has the best quality and the highest vitamin content. The pulp is lighter, slightly inferior. Kiwi is known as the "king of fruits" because of its rich flavor and nutrition, and is deeply loved by consumers. Two kiwifruits contain 1/3 of the required nutrients per day, which is the most abundant and comprehensive among all kinds of fruits. Eating kiwi fruit regularly is not only beneficial to health, but also has unexpected effects on whitening, beautifying and slimming, especially favored by female friends. But at the same time, kiwifruit is cold and some people are not suitable for eating. Because kiwifruit is cold, people with spleen and stomach deficiency should be careful to eat it, people with frequent diarrhea and frequent urination should not eat it, and patients with menorrhagia and threatened abortion should also avoid eating it. Kiwi is a low-calorie and low-fat food rich in dietary fiber. Each kiwi fruit has only 45 calories, and the fiber 1/3 is pectin, which can moisten dryness and relax bowels. It can quickly remove harmful metabolites accumulated in the body, effectively prevent constipation and hemorrhoids, and prevent obesity after long-term consumption. Kiwifruit is extremely rich in vitamin C, which is several times or even dozens of times higher than citrus, apples and other fruits. The reason why kiwifruit can whiten and remove spots is that vitamin C can effectively inhibit the oxidation of dopaquinone in the skin, convert the dark oxidized pigment in the skin into reduced light pigment, interfere with the formation of melanin, and prevent pigment precipitation, thus keeping the skin fair. Studies have shown that some children who eat too much kiwi fruit can cause serious allergic reactions and even collapse. However, there are no reports of death caused by eating kiwifruit. Parents are advised to squeeze kiwifruit into fresh juice for their children, which is safer than cutting it into pieces and feeding it to their children.