KLAUS GULDBRANDSEN / SCIENCE PHOTO LIBRARY KLAUS GULDBRANDSEN / SCIENCE PHOTO LIBRARY
Perfume blending. Two technicians smelling perfume samples soaked into paper strips. This test allows the technicians to make a decision on the exact blend of plant extracts to be used to make the perfume. Photograph of R. Cazzaniea and A. Lui at Firmerich.
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