In a sprawling Milwaukee lab facility, lab workers are mixing beet root and carrot juice to obtain the right shades of blues and oranges to replace the technicolor artificial dyes in Americans’ favorite snack foods.People in head-to-toe suiting at Sensient Technologies Corp., one of the world’s largest dye-makers, create powdered and liquid dyes out of natural ingredients and store them in a giant warehouse to be shipped out to businesses they contract with.Dave Gebhardt, Sensient’s senior technical director, said: ‘Most of our customers [including companies that make candies, sodas, and frozen treats] have decided that this is finally the time when they’re going to make that switch to a natural color.’
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