Frequent Asked Questions

Q: What is Tamari? What is the difference between Tamari and regular soy sauce?


Tamari is a premium Japanese soy sauce. 

The major difference between Tamari and regular soy sauce is the proportion of ingredients between soybeans and wheat. While regular soy sauce contains 40-60% wheat, San-J Gluten Free Tamari Soy Sauce is made with 100% soybeans and no wheat. While the sodium level of San-J Tamari and regular soy sauce is the same, the higher concentration of soybeans in San-J Tamari gives a richer, smoother, more complex taste than ordinary soy sauce.

Q: How is San-J Tamari brewed?


San-J Tamari is brewed and aged for up to six months using Japanese brewing methods handed down through eight generations.

Q: Is San-J soy sauce fermented?


Yes. San-J Tamari and Shoyu are fermented for up to six months. Only San-J’s fermentation process can create its rich, complex taste.

Q: Is San-J soy sauce pasteurized?


All San-J Tamari and Shoyu soy sauces are pasteurized. We do so to stop the fermentation process from continuing inside of each bottle of Tamari or Shoyu - otherwise, it could lead to off-flavors and harsh aromas and also create gases. We use the pasteurization method to maintain the best quality of our sauce as long as possible.

Q: Are any artificial preservatives, flavors, or colors added to San-J products?


No. No artificial preservatives, flavors, or colors are added to San-J products.

Q: Are San-J products vegetarian?


All San-J products, excluding White Miso Soup are vegetarian.

Q: Are San-J products vegan?


All San-J Gluten Free Tamari Soy Sauce, Shoyu, Wakame Soup, Tamari Crackers, Tamari Brown Sesame Crackers, Tamari Black Sesame Crackers are certified vegan.

Q: Does San-J Tamari contain MSG?


We do not add MSG, but there could be some naturally occurring during the fermentation.

During fermentation, the protein in the soybeans is broken down to polypeptide chains and amino acids. The main amino acid we obtain is glutamic acid. Since the soybeans are fermented in a high salt brine solution, there could be some interaction of glutamic acid with sodium, creating some naturally occurring MSG (monosodium glutamate). Naturally occurring MSG can be found in many natural foods that have a rich flavor, such as cheese, mushrooms and tomatoes.

Q: Are any San-J products certified Organic?


Yes. San-J Organic Gluten Free Tamari (Gold Label), Organic Gluten Free Reduced Sodium Tamari (Platinum Label) and Organic Shoyu (Bronze Label) are certified organic by Quality Assurance International (QAI) and USDA Organic.

Q: Are San-J products kosher?


San-J Tamari, Shoyu, Gluten Free Asian Cooking Sauce and Salad Dressing products are all certified kosher by Orthodox Union.

Q: Do your products contain GMOs?


San-J participates in the Non-GMO Project. The following products have been verified by the Non-GMO project. (

  • Tamari Gluten Free Soy Sauce (Black Label)
  • Tamari Gluten Free Reduced Sodium Soy Sauce (White Label)
  • Tamari Lite 50% Less Sodium Gluten Free Soy Sauce (Green Label)
  • Organic Tamari Gluten Free Soy Sauce (Gold Label)
  • Organic Tamari Gluten Free Reduced Sodium Soy Sauce (Platinum Label)
  • Organic Shoyu
  • Thai Peanut Sauce*
  • Szechuan Sauce*
  • Teriyaki Sauce*
  • Sweet & Tangy Sauce*
  • Asian BBQ Sauce*
  • Orange Sauce*
  • Mongolian Sauce

We only use non-GMO soybeans and non-GMO canola oil in our products. Our products that are currently not verified as Non-GMO contain some ingredients that we are unable to guarantee that they are GMO free. That is due to the fact that suppliers cannot guarantee us that there is no GMO contamination of their ingredients. We are currently looking into each ingredient of each product in order to make it GMO free and also retain the flavor that our customers have loved for many years.

*Look for a Non-GMO Project seal on the label.

Q: Where is your Tamari / Shoyu made?


San-J brews Tamari and Shoyu soy sauces in the USA. We blend it with Tamari and Shoyu made in Japan when necessary for Tamari (Black label), Reduced Sodium Tamari (White label), Tamari Lite 50% Less Sodium and Organic Shoyu. Everything we receive from Japan is tested for radiation prior to accepting it for use at San-J.