How to Freeze Dry Vegetables
Freeze drying is the process of removing the water content from a food and replacing it with a gas. Freeze drying is a great way to preserve vegetables while maintaining their color, texture and shape. The vegetables also retain most of their nutritional content and taste when freeze dried. Freeze dry vegetables right in your own home. Does this Spark an idea?
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Instructions
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Clean vegetables under cold running water and cut into thin slices. Place the vegetables in small freezer bags or vacuum seal them in a vacuum seal bag.
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Place a layer of dry ice in the bottom of a small Styrofoam cooler.
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Lay one bag of vegetables on the layer of dry ice. Place another layer of dry ice over the vegetables and another bag of vegetables over the dry ice. Repeat until the cooler is full. The last layer should be dry ice. Leave no extra space in the cooler.
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Place the lid on the cooler of vegetables and let sit for about 30 minutes and then check them every 5 minutes until the vegetables are frozen solid.
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Remove the vegetables from the cooler and store them in the freezer, though vacuum sealed bags do not require freezing.
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Tips & Warnings
Set the cooler outside with the lid off when finished to let the dry ice evaporate.
Do not touch dry ice with bare hands as it can cause extreme frostbite.
