1, raw material difference: the main raw material of tomato sauce is red tomato, while the main raw material of tomato sauce is ketchup, sugar, salt and other condiments.

2. The difference in production process: Tomato paste is made from ripe red tomatoes through crushing, pulping, concentration, canning and sterilization. Ketchup is fried with ketchup, sugar, salt and cooking oil.

3, the difference in eating: tomato sauce is often used as cooking ingredients for fish, meat and other foods, while tomato sauce tastes sweet and sour with spicy taste, mainly used in western food.

Precautions for choosing ketchup:

1, optional stuffing: It is best to choose stuffing for ketchup, because this kind of packaging is light-proof and airtight, and it can retain lycopene at most, but the plastic packaging is worse.

2, look at the color: tomato sauce is not as bright as possible, nor is it the kind of dark red, 20 days of natural tomato color.

3, look at the fineness: the tomato sauce is relatively uniform after opening, with good fineness, but poor dryness. In addition, ketchup is raw sauce, so finally fry it in oil before seasoning.