Public domain
Dehydration. Potatoes. A tray of sliced potatoes is placed on the steam blancher by Horace Campbell, chief of the Vegetable Section at the Western Regional Research Laboratory in Albany, California. Four to five minutes of blanching are necessary to inactivate enzymes which are harmful to the keepin
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Credit lineDehydration. Potatoes. A tray of sliced potatoes is placed on the steam blancher by Horace Campbell, chief of the Vegetable Section at the Western Regional Research Laboratory in Albany, California. F. 1943-01-01. United States. Office Of War Information, Rosener, Ann. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.