Ketchup | How It's Made

Though ketchup today uses tomato as a base, early versions did not. They were made from anchovies, shallots, oysters, lemons, or walnuts. #HowItsMade Mondays 9/8c on Science http://www.sciencechannel.com/tv-shows/how-its-made/ Subscribe to Science Channel: http://bit.ly/SubscribeScience Check out SCI2 for infinitely awesome science videos. Every day. http://bit.ly/SCI2YT Download the TestTube app: http://testu.be/1ndmmMq

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