Stop Refrigerating Onions: Experts Warn Against Cold Storage for Optimal Freshness
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Stop Refrigerating Onions: Experts Warn Against Cold Storage for Optimal Freshness

Stop Ruining Onions: The Right Way to Store Them
We’ve all faced the disappointment of finding soggy, sprouted onions at the back of the fridge. But the culprit might be your storage method. Experts warn that refrigerating whole onions is a common mistake that speeds up spoilage. Here’s how to keep them fresh longer.

Why Fridges Are the Enemy

Cold temperatures convert onions’ starches into sugars, causing them to turn soft and mushy. Food expert Melissa Alink explains: “Whole raw onions absorb moisture in the fridge, leading to faster spoilage.” Instead, store them in a dark, cool, and well-ventilated spot like a pantry or cupboard. Avoid heat, which triggers sprouting.

Onions in a fridge
Cold environments make onions soft and accelerate rot (stock image).

The Science of Spoilage

Onions are still “alive” after harvest, respiring to produce energy. Cold temperatures force them to break down starch reserves into sugars, while warmth prompts sprouting. Sprouted onions aren’t toxic, but they lose sweetness as sugars deplete, resulting in a bitter taste.

Storage Do’s and Don’ts

  • Avoid plastic bags: Trapped moisture promotes rot. Use mesh bags, wire baskets, or crates for airflow.
  • Try nylon tights: Place onions in the legs of clean tights, tying knots between each, and hang them in a cool area.
  • Keep them dry: Steer clear of humid spots like under sinks or basements.

Mesh bag storage
Storing onions in breathable containers prevents moisture buildup (stock image).

Handling Cut Onions

Once sliced or peeled, onions belong in the fridge. Wrap tightly in cling film or place in airtight containers to limit exposure to ethylene gas (emitted by fruits), which speeds decay. Chopped onions can last up to two weeks refrigerated.

Chopped onions in fridge
Refrigerate cut onions in sealed containers to prevent spoilage (stock image).

Quick Tips Recap

  • Whole onions: Cool, dark, ventilated area (not the fridge!).
  • Cut onions: Airtight in the fridge.
  • Avoid plastic: Opt for breathable materials.

By ditching the fridge and optimizing storage, you’ll extend your onions’ lifespan—and reduce kitchen waste. No more mushy surprises!


Images sourced from Daily Mail. Follow these tips to keep your onions crisp and flavorful.

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