Mincing tomatoes results in a very fine, almost paste-like texture, while dicing produces small, distinct cubes. Mincing breaks down the tomato structure more completely than dicing.
Mincing tomatoes involves chopping them into extremely small pieces, often using a rocking motion with a chef's knife or a food processor. This process releases a significant amount of the tomato's juices and breaks down its cellular structure, resulting in a soft, almost pulpy consistency. The final product is typically used in sauces, purees, or as a base for other dishes where a smooth texture is desired.
Dicing, on the other hand, aims to create uniform cubes of tomato. This involves first slicing the tomato, then cutting those slices into strips, and finally dicing the strips into small, even pieces. Dicing preserves the tomato's texture, leaving distinct pieces that retain some of their shape and firmness. Diced tomatoes are often used in salads, salsas, or as a topping where a more substantial texture is preferred. The key difference lies in the degree of breakdown of the tomato's structure. Mincing aims for near-complete breakdown, while dicing aims to maintain distinct, small pieces.
When mincing tomatoes, use a serrated knife if your tomatoes are very ripe and soft. The serrations will help grip the tomato skin and prevent it from slipping, making the mincing process easier and more efficient.