Tamari Explained

Last updated on Mar 17, 2025
Katie McCaslin

Tamari is a versatile, umami-rich soy sauce alternative that enhances many dishes, often found in marinades, dipping sauces, stir-fries, and dressings. Its smooth, balanced flavor makes it a popular component in Asian cuisine as a soy sauce substitute with less saltiness. Additionally, tamari is gluten-free, making it perfect for adding flavor to popular dishes like fried rice for people with dietary restrictions. Use this guide to learn more about tamari and its uses, origins, substitutes, and ingredients.

What Is Tamari?

someone dipping sushi in tamari sauce

Tamari is a Japanese soy sauce made primarily from fermented soybeans and contains little to no wheat. It originated as a byproduct of miso production and has a rich, smooth flavor with less saltiness than regular soy sauce. Tamari’s deep umami taste is ideal for for marinades, dipping sauces, and stir-fries. Its gluten-free nature also makes it a preferred choice for those with dietary restrictions.

Tamari vs Soy Sauce

Tamari and soy sauce share a common foundation, as both come from fermented soybeans and add umami depth to dishes. They enhance stir-fries, marinades, soups, and dipping sauces with rich, savory flavors. However, tamari contains little to no wheat, while traditional soy sauce is brewed with wheat for a slightly different texture and taste. Tamari has a darker color, a smoother consistency, and a richer, less salty flavor, while soy sauce tends to be thinner and saltier.

Chefs choose tamari when they want a bold, well-rounded umami flavor without overpowering saltiness. It works well in dipping sauces, glazes, and dishes that require a more concentrated soy flavor. Soy sauce is better for seasoning and cooking, especially when balancing saltiness with other ingredients. Chefs prefer soy sauce in recipes where a lighter, saltier touch is needed, such as in fried rice or stir-fries.

Does Tamari Have Soy?

Yes, tamari is made primarily from soybeans. Unlike traditional soy sauces, tamari contains little to no wheat, making it a gluten-free alternative. However, it is not suitable for those with soy allergies.

Tamari Ingredients

Image of Asian noodles covered in tamari sauce

Tamari is made from a simple blend of ingredients that develop deep umami flavors. The primary ingredients include:

  • Soybeans
  • Water
  • Salt
  • Koji (a fermentation starter)

Does Tamari Go Bad?

Tamari has a long shelf life but will eventually degrade in quality. It lasts several years unopened, while opened bottles maintain peak flavor for about a year when stored properly. Keep tamari in a cool, dark place with the lid tightly sealed to prevent spoilage. Refrigeration extends its freshness, though it is not required. To tell if your tamari is expired, sample the flavor and the scent for sourness or spoilage. Additionally, look for white mold from the soy floating in the sauce.

Substitutes for Tamari

When tamari is unavailable, several alternative Asian sauces can provide a similar flavor.

  • Soy Sauce: The closest substitute, though it contains wheat and has a saltier taste.
  • Coconut Aminos: A soy-free, slightly sweeter option with less sodium.
  • Liquid Aminos: A gluten-free alternative with a milder, slightly sweeter flavor.
  • Miso Paste: Mixed with water, it mimics tamari’s umami depth in sauces and marinades.
  • Hoison Sauce: A great tamari substitute for sweet marinades and dipping sauces due to its thickness.

If you're looking for a gluten-free, flavorful substitute for soy sauce, look no further than tamari. Its complex, subtle flavor enhances the other ingredients in your dish without overpowering them. Additionally, proper storage will extend the shelf life of your bottle. Whether in marinades, dressings, or stir-fries, tamari adds depth and balance to any recipe.

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