They are the same type of tomato, but San Marzano u003cemu003eDOP tomatoes are grown in a specific region of Southern Italy and must adhere to strict guidelinesu003c/emu003e.u003cbr/u003eu003cbr/u003eThe soil, climate, and processing of DOP tomatoes contribute to a superior flavor and texture. DOP tomatoes are definitely worth seeking out for this recipe!