Watermelon can be safely frozen to prevent waste, but the process significantly alters its crisp texture, according to a report by marthastewart.com.
Chef Barbara Rich explained that water turns to ice and expands during freezing. Because watermelon contains more than 90% water, ice crystals damage the thin fibers that create its signature crunchiness.
Food scientist Abby Thiel noted that this process occurs at a cellular level, preventing thawed watermelon from keeping its shape. As a result, the fruit becomes softer and releases more liquid, though its main sugars and flavor compounds remain.
Nutritional Value and Flash Freezing
Freezing helps preserve vitamins and antioxidants better than leaving watermelon at room temperature because low temperatures slow down chemical processes that destroy nutrients. Experts recommend using fresh, ripe fruit that has been washed, peeled, and deseeded before cutting the flesh into cubes, balls, or pieces.
To flash freeze watermelon, lay the pieces in a single layer on a parchment lined baking sheet until solid, then transfer them to an airtight container or bag. Thiel said fast freezing and removing maximum air prevents structural damage and freezer burn, though freezing a whole watermelon is not recommended. Watermelon can also be pureed or juiced before freezing in containers or ice trays.
Storage Limits and Recipe Ideas
Frozen watermelon maintains its best quality and taste for 6 to 12 months. If kept constantly in the freezer, it remains safe longer, but quality gradually declines.
Because thawed watermelon loses its crisp texture, it is less suitable for fruit salads or serving in slices. Instead, frozen watermelon works best in blended or refrozen recipes, including smoothies, cold drinks, sorbets, homemade ice cream, or as an ice substitute in beverages.
UNIAN previously reported that simple visual signs and pulp conditions help buyers select ripe, sweet watermelon and detect elevated nitrate levels without special instruments.
