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How to Dehydrate Vegetable Chips

by
author image Fred Decker
Fred Decker is a trained chef and certified food-safety trainer. Decker wrote for the Saint John, New Brunswick Telegraph-Journal, and has been published in Canada's Hospitality and Foodservice magazine. He's held positions selling computers, insurance and mutual funds, and was educated at Memorial University of Newfoundland and the Northern Alberta Institute of Technology.
How to Dehydrate Vegetable Chips
Making your own vegetable chips can be more practical than buying them at the bulk store. Photo Credit bhofack2/iStock/Getty Images

In the modern age of widespread refrigeration, drying foods for preservation is no longer a life-or-death issue. However, drying vegetables is still a practical preservation option. Drying leaves your vegetables very light and compact, requiring much less space than other preservation methods. Drying removes much of the vitamin C from vegetables, but their fiber remains and the vegetables will retain useful quantities of most other vitamins and minerals. When dried to crisp chips, the vegetables can be reconstituted for cooking or simply eaten as a snack.

Choosing Your Vegetables

To make the best-quality dried vegetables, start with the best-quality fresh vegetables. Choose firm, unblemished specimens without any soft spots, mold, bruising or visible insect damage. For vegetable chips, use vegetables with a firm texture that can be cut into consistently thin slices. Carrots, parsnips, turnips or rutabagas, winter squash and peeled bell peppers are all suitable choices.

Preparation

Start with freshly washed hands and clean, sanitized utensils and work surfaces. Wash the vegetables carefully, then peel them if appropriate. Cut them into uniform slices, 1/4 inch or thinner. A flat mandoline slicer can help make your slices consistent, but a sharp knife or even a vegetable peeler will work. For bell peppers, char and remove the skin and cut the flesh into strips. In each case, the thinner the slices the crisper the finished chips will be.

Blanching and Antioxidants

Before drying the vegetables, there are two methods you can use to improve the quality of your finished product. One is to soak your strips of vegetables in water made acidic with lemon juice or ascorbic acid -- vitamin C -- which will prevent oxidation. The second method is to blanch your vegetables in boiling water for 30 seconds to two minutes, depending on the vegetable, then chill them rapidly in ice water. Both methods help preserve the vegetables' flavor and nutrition, and provide a degree of protection against foodborne illness by killing bacteria and molds.

Drying

Carefully blot your vegetable slices dry on clean paper towels. Arrange them on the dehydrator's trays in a single layer, leaving space for air to circulate. Dry the vegetables at 140 degrees Fahrenheit until they're fully dried and crisp, about three to five hours depending how thinly they're sliced. Turn them periodically to ensure the most even drying possible. When finished, turn off the dehydrator and allow the heat to dissipate, then leave the vegetables to cool.

Storage and Use

Crisp, brittle vegetable chips can be packaged for storage as soon as they're cool. Pack them carefully into airtight plastic bags, ideally using a vacuum sealer. The more airtight the package, the better your storage life. Keep the vegetables in a cool, dark place for six months to a year, opening and using them as needed. To eat the vegetable chips as a snack, distribute them on a parchment-lined baking sheet and recrisp them at the lowest possible temperature. They can be chopped, crumbled or reconstituted for use in baking or cooking.

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