Keep It Simple San Marzano. What did you think it meant? Keeping it simple is just what we’re doing in this jar of sauce. The small town of San Marzano in Italy is nestled at the foot of Mount Vesuvius where the terroir is composed of volcanic soil. The tomatoes grow up robust without too much acidity and not too much sweetness. In a word, perfect. We think they’re the best tomatoes and that’s why we hand-crush them and add just a few other ingredients to make K.I.S.S. Just look at her: irrepressibly red, full bodied, tons of personality! And when you taste her, you know she’s been sipping on the white wine to give her just enough pucker.