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Tomato ketchup is a condiment made by mixing concentrated tomato paste with water, sugar, vinegar, salt and seasonings. The tomato paste is typically manufactured using the "Hot Break" method. With this method, pulped tomatoes are heated to 90?C (200?F). This preserves the pectin that is found naturally in tomatoes, but some of the aroma and colour are lost. Premium quality ketchup with a high solids content derive their viscosity from a combination of water retention of the fibrous strands in the paste and the gelling effect of the pectin, which is released via high-pressure homogenisation. Lower solids content ketchup may also contain starch-based thickeners or gums.
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For more information on Manufacturing Tomato Ketchup talk to Silverson Machines Ltd