A bad grapefruit is soft, moldy, or smells sour.

A fresh grapefruit feels firm, smells slightly sweet, and has smooth, vibrant skin. Signs of spoilage include soft or mushy spots, visible mold, a fermented or sour odor, or shriveled skin. Discoloration, especially dark or sunken areas, also indicates decay. If the fruit leaks juice or feels unusually light for its size, it's likely bad. Always inspect before cutting to avoid consuming spoiled fruit.

Visual and tactile signs of spoilage

• Soft, mushy, or sunken spots
• Mold growth on the skin
• Shriveled or wrinkled peel
• Dark discoloration or bruising

Smell and weight indicators

• Sour, fermented, or off-putting odor
• Unusually light weight (dried out inside)
• Leaking juice or sticky residue

Comparison: Fresh vs. Bad Grapefruit