Although washing the watermelon rind before cutting is an important food safety practice, it does not completely eliminate the risk of contamination. If the rind carries bacteria, they can easily be transferred to the edible flesh by the knife as it passes through the fruit. In addition, contamination can occur if the watermelon is handled with unwashed hands or cut using dirty utensils or preparation surfaces.
For this reason, many food safety experts recommend buying whole watermelons whenever possible. Wash the rind thoroughly under running water, scrub it with a clean produce brush if available, and cut the fruit at home using clean knives and sanitized cutting boards.
How to Store Cut Watermelon Safely
If you purchase or prepare cut watermelon, refrigerate it immediately in a clean, airtight container. Although refrigeration slows bacterial growth, it does not stop it completely. For the best quality and safety, consume cut watermelon as soon as possible—ideally within a few days—and never leave it at room temperature for more than two hours (or one hour if temperatures exceed 32°C/90°F).
Better Flavor and Texture
Buying a whole watermelon also helps preserve its freshness. Whole fruit retains its natural sweetness, crisp texture, and juiciness much better than pre-cut pieces, which can become soft, dry, and lose flavor after prolonged exposure to air.
The Bottom Line
To enjoy watermelon safely this summer, choose a whole watermelon whenever possible. Wash the rind thoroughly before cutting, use clean utensils and cutting surfaces, refrigerate leftovers promptly, and consume them within a few days. These simple precautions help reduce the risk of foodborne illness while preserving the fruit’s delicious taste and refreshing texture.