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How long does watermelon last?

Watermelon keeps for about 3 to 4 days in the refrigerator. Counted from the date of purchase.

WhereHow long
Pantry1 to 2 days
Refrigerator3 to 4 days
Freezer12 months

Or until ripe.

Storage times are the USDA FoodKeeper guidance for quality and safety, not a guarantee; a printed use-by date on the package comes first. Source: USDA FSIS FoodKeeper (CC0), fetched 2026-10-27, category Produce / Fresh Fruits.

How Known uses thisWhen a receipt lists watermelon, Known estimates an expiry from the purchase date and typical shelf life and shows which rule it used, for example "7-day rule". Shelf-stable staples get no date at all.

Stop finding it in the back of the fridge

One receipt photo, and every grocery line gets an estimated use-by date and a reminder. No account, nothing to type.

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