The kiwifruit is hard to eat, but it is not recommended, as the taste may be relatively poor. The kiwifruit is hard and immature, the sugar content is relatively low, the taste is sour and astringent, and it may irritate the mucous membrane of the mouth and gastrointestinal tract after consumption, so it is recommended to wait until the kiwifruit is soft and ripe before consumption. Kiwifruit, also known as kiwi fruit, is rich in vitamin C, folic acid, carotenoids and trace elements such as potassium, calcium and magnesium, and as a health fruit of medicinal origin, its consumption helps to a certain extent to clear heat and water, aid digestion and prevent constipation, which can have some beneficial effects on the human body. The vitamin C content of kiwifruit is relatively higher in the immature fruit, but it also contains a large amount of soluble tannins, a phytogenic polyphenol with a bitter, sour and astringent taste, which not only affects the taste, but also stimulates the mucous membrane in the mouth and the gastrointestinal tract, causing discomfort such as mouth ulcers, acid reflux and stomach pain, which can be aggravated by the presence of gastrointestinal diseases, such as gastritis and gastric ulcers. This can also lead to aggravation of the condition, so it is not recommended to consume hard kiwifruit. In addition, appropriate measures can be taken to ripen kiwifruit, such as placing ripe apples, bananas and other fruits in sealed bags with immature kiwifruit for a period of time, or using warm water to soak them as appropriate, which can encourage them to become soft and ripe.