How long do oranges last before they go bad?

The short version: an orange left in a fruit bowl at room temperature is usually good for about a week to ten days before it starts drying out and losing flavour. The same orange in the fridge, ideally loose in the crisper drawer rather than sealed in its original bag, can hold up for three to four weeks, sometimes longer. Most of that gap comes down to the same fact that applies to lemons and limes: an orange does not ripen after it is picked, so nothing about it is racing toward being "done." What it is doing instead is slowly drying out and, if conditions are damp enough, growing mould — and those two things behave differently enough from each other that it is worth treating them as separate questions.

Why an orange is not on a ripening clock

Oranges, like other citrus, are non-climacteric: they stop developing sugar and flavour the moment they are picked, unlike an apple or a banana, which keeps converting starch to sugar and softening for days afterward. An orange picked slightly early will taste exactly as it did the day it left the tree — it will not sweeten up sitting on your counter. What changes after picking is not ripeness but condition: the thick peel is a genuinely good barrier, but it is not a perfect one, and water slowly escapes through it for as long as the fruit sits out. A warm, dry kitchen counter pulls that water out faster than a cold, humid crisper drawer does, which is the entire reason the same orange lasts weeks longer in the fridge than it does in a bowl.

The mesh bag makes it worse, not better

Oranges are usually sold several to a net bag, and that packaging works against them once one orange in the bag starts to turn. A soft or leaking spot presses directly against its neighbours, and mould spreads readily from fruit to fruit wherever they are in contact, especially with little airflow inside a tied bag. This is different from a fruit bowl, where a lemon or an apple going bad mostly stays a problem for itself. It is worth breaking a mesh bag open once you get it home rather than leaving it sealed in the fridge for weeks — spread the oranges out, even loosely in a bowl or an open drawer, and check the bag itself for any fruit that has already started to soften before it takes the one next to it down with it.

A puffy, light orange is drying out, not spoiled

An orange that has been sitting for a while develops a particular look that can seem worse than it is: the peel goes slightly spongy and loose, almost detached from the fruit inside, and the whole thing feels noticeably lighter than a fresh one of the same size. That looseness is the pith drying out and shrinking away from the segments underneath, and it is the same underlying cause as a lemon's peel wrinkling — moisture leaving the fruit — even though it shows up differently because an orange's peel is thicker and spongier to begin with. A puffy orange is usually still edible, if a little less juicy and a little more work to peel, and is not automatically something to throw out. It is simply past its best rather than gone.

Peeled, segmented or juiced oranges run on a much shorter clock

Everything above assumes a whole, unbroken orange. Once it is peeled, segmented, or juiced, that protective peel is no longer doing anything, and the fruit is now exposed the way any cut produce is. Peeled segments in a sealed container in the fridge are realistically good for three to four days, not weeks. Fresh-squeezed juice is shorter still — usually two to three days in a sealed container — because the sugar and pulp in orange juice support fermentation faster than the more acidic lemon juice does; a container that has started to smell faintly of alcohol or beer is telling you exactly what has happened to the sugar inside it. Both segments and juice freeze well if you will not get through them in time — juice in an ice cube tray so you can thaw a small amount at once, segments in a sealed bag with the air pressed out.

Reading an orange honestly

• A soft, wrinkled or puffy peel. As above, this is moisture loss, not spoilage. The orange is past its best for eating out of hand but often still fine for juicing.
• A wet, weeping soft spot, especially near the stem end. This is the fruit breaking down from the inside, usually where damage or moisture got in first. It tends to spread rather than stay put, so it is a reason to check the rest of the bag, not just that one orange.
• Any fuzzy white, green or blue-grey mould. Discard the whole orange rather than cutting around it. Citrus flesh under the peel is soft and moist enough that mould reaches well past what is visible from outside.
• A faint smell of alcohol or fermentation, particularly from a peeled or cut orange. This means the sugars have started fermenting and the fruit is done, even if nothing looks obviously wrong yet.

The part that is easy to lose track of is not any of the signs above — it is simply noticing an orange is still in the fridge at all. A net bag of oranges tends to get pushed to the back of the crisper drawer as a single unit, and by the time anyone opens it again, one soft fruit in the middle has usually already spread to a couple of others. Munch logs each batch against the day it came home, so a bag of oranges bought three weeks ago does not blend into produce bought yesterday, and it shows up in what the household can already use tonight — in a salad, a marinade, a batch of juice — rather than being rediscovered as a bag of soft fruit nobody remembers buying.

None of this needs a rule for every stage an orange passes through. It needs one distinction: an orange is not counting down to being ripe the way a pear or a banana is, so a puffy peel is not a sign it has gone off — it is water leaving a fruit that would otherwise just sit there, and keeping the bag open and the fruit cold is what actually slows that down.