- Look it over—The watermelon should be symmetrical, not narrower on one end or misshapen. If it is, it means it grew in fits and starts. Also, dark skin suggests a sweeter melon whereas a shiny watermelon is typically overripe.
- Pick it up—The watermelon should feel heavy for its size, which means it is nice and juicy.
- Find the yellow spot—The watermelon should have a creamy yellow spot if it is ripe. The spot is from where it rests on the ground. If it is white or greenish, it was probably picked too soon.
There are mixed reviews about the sound test because it is too subjective. Some people want a firm sound. Others want a hollow sound. From what I can tell, though, those that use the sound test are looking for a hollow sound. So, if you want to try it, you should hold the watermelon 2 inches from your ear and tap the underbelly. A ripe one will have a deep, hollow sound.