Blindfold Test (Won't You Have Some?)

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Blindfolding a tester of cooked dehydrated spinach at the regional agricultural research laboratory, Albany, California: photo by Russell Lee, June 1942 (Farm Security Administration/Office of War Information Collection, Library of Congress)

Is it better not to know?

Blindfold test for aroma of cooked dehydrated spinach at the regional agricultural research laboratory, Albany, California: photo by Russell Lee, June 1942 (Farm Security Administration/Office of War Information Collection, Library of Congress)