Sushi Chef Rice Vinegar is brewed using a slow and natural process that is centuries old. No preservatives or artificial ingredients are ever used in this process. Rice vinegar and rice wine vinegar are identical. Sushi Chef Rice Vinegar has a mild and fragrant, delicate taste. Its lightness and sweet aroma make it a welcome addition to salad dressings and sauces. It also may be used in place of lemon juice or wine vinegar in many recipes! Sushi Chef Rice Vinegar is gluten free.