It can be eaten, but it is best not to exceed 24 hours. It is not recommended to store it in the refrigerator for a long time before eating it. Chilled watermelon is rich in nutrients, which is far lower than watermelon stored at room temperature. The lycopene and beta-carotene contained in watermelon at room temperature are 40% and 139% higher than that of iced watermelon, and these nutrients are antioxidants with anti-cancer effects.