6. Find a Smooth, Unblemished Rind
A watermelon with a smooth rind and no scratches or gouges is ripe. Minor blemishes are okay, but large cuts or soft spots may imply the fruit has been overhandled or is beginning to spoil.
Conclusion
To select a ripe watermelon with red, sweet, and paper-thin flesh, find a small, dry sugar spot, examine the uniform color of the rind, feel the weight, tap for a hollow sound, and check for the field spot.
