Don’t Rely on a Taste Test if It Looks Spoiled
If a watermelon already shows obvious spoilage, do not taste a piece just to “check.”
Food can contain harmful microorganisms without tasting dramatically different.
When in doubt, throwing away one watermelon is much safer than risking foodborne illness.
How to Choose a Better Watermelon
You cannot guarantee what the inside will look like, but a few checks may improve your chances of choosing a good one.
Look for a Creamy Yellow Field Spot
This is the area where the watermelon rested on the ground.
A creamy yellow spot generally indicates the fruit had time to ripen on the vine.
Check the Weight
A good watermelon should generally feel heavy for its size because it contains a large amount of water.
Look at the Rind
Avoid watermelons with:
Deep cuts
Soft spots
Leaking areas
Major bruising
Obvious external cracks
Give It a Tap
People often use the “tap test,” looking for a deep, hollow sound.
It is not a perfect science, but it can be one additional clue when choosing among several melons.
How to Store Cut Watermelon Safely
Once watermelon is cut, it should be refrigerated rather than left at room temperature for extended periods.
Use clean utensils and place leftover pieces in a covered container.
If cut watermelon develops an unusual smell, sliminess, excessive liquid, or other signs of spoilage, discard it.
The Bottom Line
Finding cracks inside a watermelon does not automatically mean the fruit is toxic or contaminated with chemicals.
Clean internal cavities can simply be caused by hollow heart, uneven growth, or other natural growing conditions.
What matters more is the condition of the flesh.
If the watermelon is firm, juicy, fresh-smelling, and normal in color, internal cracking alone is usually less concerning.
But if you see foam, bubbling liquid, slime, mushiness, leaking, or a sour fermented smell, do not eat it. Those are much stronger signs that the watermelon has spoiled.
