No pests, mildew and pollution; The variety of tomato is very important. Canned raw juice tomatoes require fresh raw materials, no pests, no mildew, no pollution, bright red color, thick and juicy pulp, soluble solid characteristics, high red pigment in tomatoes, good spherical tomatoes, and immature green fruits affect the color of products, so it is not suitable for use; Because the selection of raw tomato varieties is closely related to the product quality, not all tomatoes are suitable for processing ketchup.