Making chocolate colourful

ETH researchers are making chocolates shimmer in rainbow colours without the addition of colourants. They have found a way to imprint a special structure on the surface of the chocolate to create a targeted colour effect. By playing this video, you agree to the use of cookies by YouTube - This may include analytics, personalization, and ads. Learn more - OK The chocolate shimmers in dynamically changing rainbow colours. It seems to glow in the light. A group of scientists from ETH Zurich and FHNW University of Applied Sciences and Arts Northwestern Switzerland have recently filed a patent for this process. Traditional methods for colouring chocolate have been around for a long time.
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