1, ketchup is a sauce-like concentrated product of fresh tomatoes. Bright red sauce body, with the unique flavor of tomatoes, is a characteristic condiment, generally not directly into the mouth. Ketchup from ripe red tomatoes by crushing, pulping, removing the skin and seeds and other hard substances, after concentration, canning, sterilization and become.

2, ketchup is often used as fish, meat and other food cooking condiments, is to increase color, add acid, help fresh, lush flavor of the best products. The use of ketchup is an important part of the flavor profile of Hong Kong and Cantonese cuisine.

3, ketchup can also be used as a cleaning patina, because ketchup contains a small amount of acidic components, so it can break down the patina.