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Refrigerator used as a produce store

Fridge produce store · Refrigerator crisper storage

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An ordinary household refrigerator used to store selected fresh produce in vented crates or drawers, at low temperature and at a humidity chosen by the drawer. Not every crop benefits from cold.

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Overview

A refrigerator used as a produce store is an intact appliance whose drawers or a crate inside it hold selected crops at a low temperature. Its appeal is that the cold, and in some drawers the humidity, is already built in.

It is not a cure for every crop. Cold storage helps some produce and harms other produce, so the choice of crop matters more than the appliance.

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Humidity in the crisper

Michigan State University Extension notes that airflow sets humidity: less airflow means higher humidity. Many refrigerators have one drawer for fruits, kept at lower humidity, and another for vegetables, kept at higher humidity.

The low-humidity drawer lets some ethylene gas escape, which slows rot in produce that is sensitive to it. Keeping ethylene producers and sensitive crops apart is the simplest measure available in a household fridge.

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Crops that should not be chilled

The Arkansas Cooperative Extension guide advises not refrigerating bananas, sweet potatoes, potatoes or whole dry onions. Those crops are better kept at a cool room temperature, since cold can damage them.

The guide does not explain the mechanism, and the inspected sources do not give chilling thresholds by crop. Anyone storing a crop in a refrigerator should check it against a university or USDA source first.

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Compared with a controlled cabinet

The question is whether a refrigerator store is worth having beside a purpose-built, controlled cabinet. An ordinary crisper is cheap and already installed, but it gives little control over humidity or temperature. A cabinet with a logged humidity setting costs more and needs more monitoring.

The fair test is the crop. Record the storage life of the same crop in the fridge drawer, in a crate in the fridge, and at room temperature, and only then decide whether extra equipment pays off.

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History

The household refrigerator with humidity-controlled crisper drawers is a modern appliance. The inspected material is consumer and extension guidance on its use and does not date its adoption.

Equipment details

PowerElectric Runs on mains power through its own compressor. The inspected extension guidance gives no energy figure.
How you get oneBought, manufactured A standard appliance, bought new or second-hand. Its crisper humidity behaviour depends on the model.
CareClean the drawers and crates regularly, and check the drawer seals and any humidity control settings against the owner's manual.
Risks and precautions
Chilling injury and spoilage of cold-sensitive crops

Some crops lose quality or rot when kept too cold, and others sprout or soften in a humid drawer.

Hazard source

Choose crops suited to cold storage and separate ethylene producers

Control source

Settings differ by appliance. Follow the manufacturer's guidance and check the actual drawer temperature with a thermometer.

Limits

Bananas, sweet potatoes, potatoes and whole dry onions should not be refrigerated, according to one extension guide.

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Ethylene-sensitive produce should be kept apart from high ethylene producers such as apples, pears, plums, cantaloupes and peaches.

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Less airflow means higher humidity, so the drawer setting changes how much moisture the crop keeps.

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Places

Documented for international use, with no single place of origin assigned.

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