How to Tell If Garlic Is Bad
Quick answer
Bad garlic turns soft, slimy, or shriveled, with brown or yellow cloves, mold, or a sour smell. A green sprout in the middle is fine to remove and doesn’t mean the clove is spoiled.
Signs Garlic has gone bad
- Soft or squishy cloves. Fresh cloves feel hard and plump. If a clove squishes under your thumb, it’s rotting and should be thrown out.
- Brown, yellow, or dark spots. Small tan blemishes can be trimmed, but large brown, translucent, or gray patches mean decay. Toss any clove that’s discolored through.
- Blue-green or black mold. Powdery mold on cloves or in the papery wrapper means that clove is done. Check neighboring cloves in the head and discard any touched by it.
- Slimy or wet feel. A slick coating or wet patches mean bacteria are at work. Discard the clove, and the head if several are affected.
- Shriveled, hollow, or rock-hard dried cloves. The clove has dried out and lost flavor. It’s not dangerous, but it won’t taste good, so toss if it’s papery or rubbery.
- Sour, off, or ammonia-like smell. Garlic should smell sharp and pungent. A fermented or sour odor means it has spoiled.
Looks weird, but it's fine
- Green sprout in the center. The clove is just trying to grow. Slice it open and pull the sprout out, since it can taste bitter. The rest of the clove is fine if it’s firm and white.
- Papery, loose wrapper. Dry skin that peels off easily is normal as a head ages.
- Blue or green tint after cooking or pickling. Garlic can turn blue-green when it reacts with acid or copper. It looks odd but is a harmless color change, not spoilage.
How long does Garlic last?
| Where | How long | Note |
|---|---|---|
| Pantry (cool, dark) | 3–5 months | whole head, unbroken |
| Pantry | 10 days | once the head is broken into cloves |
| Fridge | 1–2 weeks | peeled cloves; keep covered |
| Freezer | 10–12 months | chopped or whole peeled cloves |
How to store it
- Keep whole heads in a dry, dark, airy place such as a wire basket or open bowl. Don’t refrigerate whole heads, which encourages sprouting.
- Don’t store peeled garlic in oil at room temperature. That setup can grow dangerous bacteria, so keep any garlic in oil in the fridge and use it within about 4 days.
- Freeze extra cloves chopped or in a thin flat bag so you can snap off what you need.
Use it up before it turns
Frequently asked questions
Can you eat garlic that has sprouted?
Yes. The sprout can be bitter, so slice the clove in half and remove the green center. If the clove is still firm and white, it’s safe to use.
Is garlic with brown spots safe?
Small brown spots can be cut away if the clove is otherwise firm. If the clove is mostly brown, soft, or slimy, throw it out.
Is garlic in oil safe to leave out?
No. Garlic stored in oil at room temperature can grow the bacteria that cause botulism. Keep it in the fridge for no more than about 4 days, or freeze it.
More food freshness guides
General guidance based on USDA FoodKeeper. Storage times are estimates and conditions vary. When in doubt, throw it out.