Should You Store Potatoes in the Refrigerator?

The Short Answer: Not Usually, But It Depends

Most potatoes should not go in the refrigerator. Cold temperatures turn the starch in potatoes into sugar, which changes their taste and texture—they become grainy and unpleasantly sweet when cooked. A cool, dark pantry or cupboard works far better for raw potatoes. The one exception is cooked potatoes: those belong in the refrigerator within two hours of cooking and will keep for three to four days.

The confusion happens because people see potatoes in grocery store coolers and assume home refrigeration is the same thing. It isn't. Commercial produce coolers run at a different temperature than your kitchen refrigerator, and they're meant for short-term display, not storage.

Key Takeaways

• Raw potatoes last longest in a cool, dark, well-ventilated space like a pantry or basement—not the refrigerator.
• Refrigerator temperatures cause raw potatoes to develop an off-flavor and grainy texture because cold converts their starch to sugar.
• Cooked potatoes must go in the refrigerator within two hours and will keep safely for three to four days.
• Sweet potatoes and new potatoes have shorter shelf lives than russets and should be used within one to two weeks.

Why Cold Storage Damages Raw Potatoes

When potatoes sit below 50°F, an enzyme in the potato begins breaking down starch molecules into simple sugars. This process, called cold-induced sweetening, happens slowly but noticeably. The potato doesn't spoil—it just tastes wrong. You'll notice the sweetness most in dishes where potato flavor matters, like mashed potatoes or potato salad.

The texture suffers too. Those sugars affect how the potato cooks. Instead of a fluffy, creamy interior, you get something grainy and slightly mealy. The problem gets worse the longer the potato stays cold, and it doesn't reverse when the potato warms up again.

Your refrigerator typically runs between 35°F and 40°F—well below the threshold where this damage begins. Even the warmest shelf in most refrigerators is too cold for raw potatoes.

The Right Storage Spot for Raw Potatoes

Store raw potatoes in a cool, dark, well-ventilated place. A pantry, kitchen cupboard, basement, or garage works well if the temperature stays between 45°F and 55°F. Darkness matters because light exposure turns potatoes green and creates solanine, a compound that tastes bitter and can cause stomach upset in large amounts.

Ventilation prevents moisture buildup, which leads to rot. Don't seal potatoes in plastic bags or airtight containers. A paper bag, mesh bag, or open cardboard box lets air circulate. If you buy potatoes in a plastic bag, transfer them to something breathable as soon as you get home.

Keep potatoes away from onions. Both release gases as they age, and storing them together speeds up spoilage in both. Potatoes also shouldn't touch apples or bananas—the ethylene gas these fruits release will cause potatoes to sprout faster.

How Long Raw Potatoes Last in Proper Storage

Russet and other starchy potatoes keep for two to three months in ideal cool, dark conditions. Waxy potatoes like red potatoes and fingerlings last about one to two months. New potatoes and small fingerlings should be used within one to two weeks because their thin skins don't protect them as well.

Sweet potatoes are different—they prefer slightly warmer storage (around 55°F to 60°F) and last one to two months. Never refrigerate sweet potatoes; the cold damages them even faster than regular potatoes.

Check stored potatoes every week or two. Remove any that have sprouted, turned soft, or show signs of rot. One bad potato can spread decay to nearby ones, so don't ignore it.

Storing Cooked Potatoes in the Refrigerator

Cooked potatoes must go in the refrigerator, and they must go in within two hours of cooking. Bacteria that cause food poisoning grow rapidly at room temperature, and potatoes are a particularly hospitable environment because they're moist and low in acid.

Store cooked potatoes in an airtight container on a middle shelf where the temperature is most consistent. They'll keep safely for three to four days. Mashed potatoes, potato salad, and roasted potatoes all follow this same rule. Leftover french fries are the exception—they dry out quickly in the refrigerator and are better eaten the same day.

When you're ready to eat them, reheat cooked potatoes to 165°F if you're warming them on the stovetop or in the oven. Microwaving works too, though it can make them rubbery if you're not careful.

What to Do If You've Already Refrigerated Raw Potatoes

If you've stored raw potatoes in the refrigerator for a few days, they're still safe to eat—cold doesn't make them unsafe, just less pleasant. You might notice they taste a bit sweeter or have a slightly off texture, especially if they've been cold for more than a week.

You have two options: use them anyway (they'll still work in soups, stews, or hash where texture matters less), or move them to a cool pantry and let them warm up for a few days before cooking. Warming them up won't undo the starch-to-sugar conversion, but it might slow any further damage if you're not ready to cook them yet.

Going forward, move them to proper storage. The sooner you get them out of the cold, the better they'll taste.

Frequently Asked Questions

Can I refrigerate potatoes if I'm going to use them within a few days?

It's not ideal, but if you'll cook them within three to five days, the flavor change might be minor enough that you won't notice it. For best results, keep them in the pantry instead. If refrigeration is your only option, use them in dishes where potato flavor is less important, like soups or curries.

Why do potatoes turn green in the refrigerator?

Potatoes turn green from light exposure, not cold. Green potatoes contain solanine and taste bitter. This can happen in the refrigerator if the light is on, but it's more common in pantries where potatoes are stored near a window. Keep all potatoes in the dark, whether refrigerated or not.

Is it okay to refrigerate potatoes if they've already started to sprout?

Sprouting means the potato is trying to grow, and cold won't stop that process—it just slows it. Use sprouted potatoes right away, or cut out the sprouts before cooking. Don't refrigerate them hoping they'll last longer; they won't.

Can I freeze raw potatoes?

Raw potatoes don't freeze well because ice crystals damage their cell structure, turning them mushy when thawed. Cooked potatoes freeze much better—mashed potatoes, roasted potatoes, and potato dishes freeze for two to three months. Let cooked potatoes cool completely before freezing, and store them in airtight containers or freezer bags.

What's the difference between storing potatoes in a basement versus a pantry?

Both work if the temperature stays in the 45°F to 55°F range. Basements are often cooler and more humid, which is good for preventing sprouting but bad for preventing rot. Make sure basement storage has good air circulation. Pantries are usually drier and easier to monitor, so they're often the better choice if your basement tends to be damp.