No more bland watermelons! Here’s a sure-fire visual guide to finding the sweetest fruit at the market.

and listen for a hollow sound. This method can help, but it is easy to misinterpret. A deeper, resonant sound may indicate a mature fruit with good internal structure, while a flat sound can suggest overripeness or poor texture. Thumping works best as one clue combined with the field spot, weight, shape, and rind.

If part of the stem remains attached,continue reading …