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Drying & Dehydrating

Part of "Food Preservation"

As families begin to eat more vegetables and fruit, dehydrators have become a popular way of preserving them for nutritious, preservative-free, dye-free, tastier and less expensive alternatives to store-bought snacks.


Home-dehydrated fruits and vegetables can last for months, and if properly stored, often up to a whole year. Lightweight, they are easily transportable to work, school, and for hiking and outdoor activities.


Using a food dehydrator retains the original vitamins, minerals, and natural enzymes of foods more effectively than other forms of food preservation or cooking. 

This Course segment starts with a basic tutorial on using a dehydrator. It is followed by how-to guides and videos demonstrating other ways of drying foods such as oven drying. The Course segment ends with a tutorial on how to make ‘ulu flour with a conventional food processor and a poster on larger scale ‘ulu flour processing.  

> Back to Course 6: Food Preservation

Useful Links:
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Hawai‘i-based video showing fruit preparation and steps to using a dehydrator with helpul tips. Publicly available from

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Excellent 5-minute video on the popular ways to dry food and great practical advice that will help you achieve the best results.

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Use drying and food processing to make flour from breadfruit (‘ulu). Go back to the Trees & Orchards segment in The Kuleana Curriculum Course, "How to Grow Food" for more useful links on growing ‘ulu trees.

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Guide to Drying Fruit

The comprehensive guide on preparing dried fruit describes a range of drying methods. From the Food & Agriculture Organization of the UN.

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No dehydrator? No problem! This short video shows you how to dry fruits in your oven. From the American Heart Association.

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A great poster showing all the steps from harvest to cleaning to drying and packaging ‘ulu as flour. Produced by Hawai‘i ‘Ulu Cooperative.

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