Is My Watermelon Ripe?

It's best to buy your watermelon from a Farmer's Market as those are picked the morning of at the
peak of ripeness.  Commercial watermelons are picked prior to ripeness so they ripen during transport.  If you're stuck buying commercial, here are some telltale signs of readiness...

1. Yellow or light bottom
2. Tape it, it sounds hollow
3. Heavy for its size