aseptic-filled tomato concentrate as tomato source for ketchup-like sauces. In order to compare tomato concentrate (without water) and fresh tomato (with water), the following considerations have been taken: Tomato concentrate minimum brix grade: 28º. Fresh tomatoes minimum brix grade: 4,6º 28/4.6= minimum of 6 grams of fresh tomatoes required to produce 1 gram of tomato concentrate. Considering this conversion means that: 25,3 % of tomato concentrate used in normal ketchup equals to 152 grams of fresh tomatoes. 35 % of tomato concentrate used in 0% sugar ketchup equals to 210 grams of fresh tomatoes.