How should I pre-treat berries, like blueberries, before drying?
Fruits such as firm berries, like blueberries, cherries, and grapes, or plums have relatively tough skins with a wax-like coating. To remove this waxy substance and permit moisture inside the fruit to evaporate, the skins must be cracked or "checked". To check, dip the fruit into briskly boiling water, then into very cold water. Dip into boiling water 30 to 60 seconds or more depending on the fruit skin and maturity of the fruit. Then dip into cold water and drain on absorbent toweling. Lye is no longer recommended because of the danger in handling it.
Barbara Willenberg, Nutritional
Sciences, University of Missouri-Columbia
Last update: Tuesday, May 05, 2009