Avoid fruit that is deformed, bulging, sunken, or has irregular vegetative growth. These symptoms may indicate growth problems or fluctuations in water supply.
A regular round or oval shape usually indicates a high-quality and evenly ripened watermelon.
Tap the watermelon
Even experienced traders know this trick.
Gently tap the shell in your palm.
A ripe melon makes a deep, hollow, and resonant sound.
Raw melon sounds sharp and metallic, while cooked melon sounds dull and blurry.
