Kikkoman Less Sodium Soy Sauce PTN (Premium Total Nitrogen) is the lowest sodium Kikkoman Soy Sauce and is preservative-free, according to the company. Atamari-style soy sauce, Kikkoman Less Sodium PTN features high-impact flavor, which comes from elevated amino acids levels, released naturally through gentle fermentation. Kikkoman Less Sodium PTN’s combination of strong, balanced flavor and low salt provides umami and depth for low-sodium formulations. This new soy sauce creates and maintains great flavor balance, even in formulations with severe sodium reduction, Kikkoman says. Kikkoman Less Sodium PTN is fermented naturally from North American-grown soybeans and wheat. It is made in the U.S. and is kosher-certified. Kikkoman Sales USA, Inc., 415-956-7750,  kikkomanusa.com