Since 1896. No preservatives. Visit us at www.marzetti.com. Marzetti Olive Oil & Vinegar is a simple blend of olive oil, vinegar and Sherry, blended with garlic and our special seasonings. It makes a simple salad sparkle with flavor. It also makes a great marinade, or enhances grilled vegetables. Marzetti vinaigrette dressings are made with only the finest ingredients, assuring you of the legendary quality you expect from Marzetti. One taste and you will know the difference.