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How to Tell If Apples Are Bad
You can tell an apple has gone bad by soft or mealy flesh, brown discoloration when cut open, wrinkled skin, visible mold, and a fermented, alcoholic smell. Apples last far longer than most fruit, so spoilage tends to be a gradual process — but there are clear signals once an apple has actually crossed the line from "past its peak" to "no longer good to eat."
| Sign | Still Fine | Time to Toss |
|---|---|---|
| Skin | Firm, smooth, taut | Wrinkled, shriveled, or with soft bruised patches |
| Flesh (cut open) | Crisp, pale, juicy | Brown, mushy, or dry and mealy throughout |
| Surface | Clean skin, no fuzz | Visible mold, often near the stem or a bruise |
| Smell | Fresh, mildly sweet scent | Sour or alcoholic, fermented smell |
Visual Signs of Spoilage
A good apple has firm, smooth, taut skin without soft spots. As apples age, the skin starts to wrinkle, especially near the stem and blossom ends, and bruised areas turn brown and slightly sunken. Mold on an apple typically shows up as a fuzzy white, gray, or blue-green patch, often starting at a bruise, a puncture, or the stem, where the skin's protective barrier is weakest.
The Smell Test
Fresh apples have a mild, faintly sweet smell. A strong, sour, or distinctly alcoholic smell means the apple's natural sugars have started fermenting, a sign that spoilage is already underway even if the skin still looks mostly intact. This smell is usually most noticeable once you cut the apple open.
The Texture Test
Cut a suspect apple open and check the flesh. Fresh apple flesh is crisp, pale, and juicy; spoiling flesh turns soft, sometimes mushy, and often shows brown discoloration spreading out from the core or from a bruise. A mealy, dry, grainy texture throughout the apple is a different issue — usually a sign the apple is simply old or was stored too warm — and while unpleasant, it's more of a quality problem than an active safety concern, unlike mold or clear rot.
Mold: Cut It Off or Toss the Whole Apple?
Apples are one of the fruits where cutting around a small mold spot is often considered acceptable, provided the rest of the apple is still firm. Because apples are a dense, relatively low-moisture fruit, mold has a harder time spreading invisibly through the flesh the way it does in soft, high-moisture fruit like berries or peaches. If you find a small area of mold on an otherwise firm apple, common food-safety guidance suggests cutting away at least an inch of flesh around and below the moldy spot, using a clean knife, and using the rest of the apple normally. That said, if the apple is soft throughout, has mold in more than one spot, or smells fermented, it's better to discard the whole thing rather than trying to salvage it.
Is It Still Safe to Eat?
A mealy, less-crisp apple with no mold and no off smell is still safe to eat, even though the texture isn't ideal for eating fresh — it's a great candidate for applesauce, baking, or juicing, where the softer texture doesn't matter. A little bit of browning right under the skin from a minor bruise is also generally fine to cut away and eat around. The signs that mean it's time to throw the whole apple away are widespread softness, multiple mold spots, or a strong fermented smell throughout.
How to Pick Good Apples in the First Place
Choose apples that feel firm with no give when pressed, and check for smooth skin free of soft spots, punctures, or shriveling. A few small surface blemishes from the orchard don't affect quality, but avoid apples that already feel soft near the stem or have visible bruising, since those spots will spoil first and can spread if left in storage with other apples.
Frequently Asked Questions
How can you tell if an apple has gone bad?
Look for soft or mealy flesh, brown discoloration when cut open, wrinkled skin, visible mold, and a fermented, alcoholic smell.
Can you cut mold off an apple and eat the rest?
Often yes, if the apple is otherwise firm. Cut away at least an inch of flesh around and below the mold spot. If the apple is soft throughout or has mold in multiple spots, discard the whole thing.
Is a mealy apple safe to eat?
Yes, as long as there's no mold or fermented smell. A mealy texture is a quality issue from age or warm storage, not a safety concern, and works fine in applesauce or baking.
Why does my apple smell like alcohol?
A fermented, alcoholic smell means the apple's natural sugars have started breaking down, a sign of spoilage that's usually most noticeable once the apple is cut open.
How long do apples take to go bad?
Apples typically last 4 to 6 weeks in the refrigerator before showing significant signs of spoilage, far longer than most other fresh fruit.
Why does one bad apple spread to the rest of the bowl?
A rotting apple releases extra ethylene gas and can spread mold spores through direct contact, both of which speed up spoilage in nearby apples. Remove bad apples promptly.
Is brown flesh under an apple's skin always a sign of rot?
Not always. Small brown spots right under the skin from a minor bruise can usually be cut away safely, but widespread brown, mushy flesh throughout means the apple should be discarded.