Can frozen watermelon still be eaten?
Generally speaking, it is not recommended to consume frost-damaged watermelon. The detailed explanation is as follows:
During the freezing process, watermelon tissue becomes soft and changes flavor due to water crystallization and cell rupture, resulting in loss of its original texture. At the same time, freezing damages the cellular structure of the watermelon, causing nutrient loss and reducing its nutritional value.

Consuming frozen watermelon may cause irritation to the oral mucosa due to the significant temperature difference between the watermelon and the mouth, potentially triggering an ice cream headache. Frozen watermelon can also irritate the gastric mucosa, leading to severe ischemia of the gastric mucosa, which may subsequently cause discomfort symptoms such as acute gastroenteritis, diarrhea, abdominal pain, nausea, and vomiting. In addition, frost-damaged watermelon is prone to bacterial growth, which may lead to intestinal infections when consumed.
To avoid health risks, it is recommended not to eat frost-damaged watermelon. If a watermelon is accidentally frozen during refrigeration, it should be discarded and not consumed. Moreover, to maintain the taste and nutritional value of the watermelon, it is advisable to store it at an appropriate temperature and consume it as soon as possible.