Guava is also called guava. Whether it needs to be softened before eating depends on the situation. Guava is also called guava. Whether it needs to be softened before eating depends on the situation. It is generally not recommended to eat guava when the skin is hard. Most of these guavas are immature and may be light in color, which may be light green, yellow, red and so on. , and contains more organic acids. It tastes sour when eaten. Moreover, immature guava is not easy to digest after eating, and may also cause gastrointestinal discomfort, such as bloating and indigestion. Guava becomes soft and its skin becomes soft, which often means that guava begins to mature. If squeezed gently, it can be elastic. Mature guava tastes crisp and sweet, and contains many vitamins, minerals and trace elements beneficial to human body. Proper consumption is beneficial to supplement the nutrition and energy needed by the human body. However, some cases are special. If the skin of guava loses its elasticity after softening, it becomes obviously soft, with peculiar smell and discoloration, which may be caused by long storage time or bacterial pollution. Guava can not be eaten at this time, so as not to cause food poisoning, abdominal pain, diarrhea, nausea, vomiting and other symptoms.