How to Keep Bananas Fresh Longer—and Stop Them From Ripening Too Fast

Bananas have a short window when they reach peak ripeness. They quickly shift from slightly green to overly soft, making that sweet spot easy to miss. While overripe bananas work well in smoothies and baked goods such as banana bread, using them at just the right time can feel like a race against the clock. Fortunately, a few simple storage methods can help extend their shelf life and slow the ripening process. To learn how to keep bananas fresh longer, we spoke with fresh produce and food safety expert Amanda Deering of Purdue University. Ahead, she shares how to preserve your bananas and keep them fresh at their peak ripeness.

Why Bananas Ripen so Quickly

If you purchase bananas often, you know just how quickly they ripen. Several factors influence the process: when you bought them, how long they have sat on your counter in warm kitchen temperatures, and whether they are near other ripening fruits. The main reason bananas ripen so fast comes down to ethylene, a natural gas that the fruit produces.

Ethylene is a plant hormone that triggers fruit to ripen, according to Deering. The ripeness of a banana at the time of purchase determines how quickly it will continue to ripen at home. Whether green, yellow, or brown-spotted, bananas release ethylene as they mature. Riper bananas emit more ethylene, which can speed up the ripening of nearby bananas. "In addition, if the bananas are stored at warm temperatures that will cause them to ripen faster," she says.

Use the Refrigerator Wisely

Storing bananas at room temperature helps them continue to ripen after bringing them home from the grocery store. This method works best if you typically buy green bananas and want them to ripen within a few days before eating them. Once the bananas ripen, move them to the refrigerator to slow the process, Deering advises.

When you refrigerate bananas, the peel will turn brown because it's sensitive to cold temperatures. "The fruit inside should remain fine for several days, though," she says. "You can extend the shelf-life of bananas for a couple of days if you store them in the refrigerator once they are ripe, although they won’t look as appetizing."

Keep Bananas Away From Other Fruits

Many fruits—including apples, avocados, and tomatoes—release ethylene as they ripen. When you store bananas near other ethylene-producing fruits, you speed up the ripening process. Keeping several fruits together at room temperature can shorten their overall shelf life, including bananas, Deering explains.

To slow ripening and reduce waste, store fruits separately. Place them in different bowls, set them on opposite sides of the counter, or rotate which fruits you plan to eat each week.

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Storage Tips to Slow Ripening and Extend Freshness

In addition to storing bananas away from other fruits while they ripen and refrigerating them once ripe, Deering suggests a few more strategies to slow down ripening and extend their freshness.

• Separate the bananas: Break apart the bunch to reduce ethylene buildup and encourage more even ripening. "Separating the bananas will allow them to ripen individually and possibly slow down the ripening of the bananas and decrease the likelihood of them all being ripe at the same time, although it will minimally impact the shelf-life," Deering says.
• Wrap the stems: After separating them, wrap the stems in plastic wrap or foil. This slows the release of ethylene and helps delay ripening, and extends their shelf life by a few days. "Separating the bananas and wrapping the stem will contribute to the best extension of shelf-life for bananas stored at room temperature at home and then storing them in the refrigerator once they are ripe," she says.
• Keep ripe and unripe bananas apart: Avoid storing ripe bananas next to unripe ones. Ripe bananas release more ethylene, which can speed up the ripening of greener fruit. If you regularly stock up, store new bananas separately to prevent them from ripening too quickly.