:max_bytes(150000):strip_icc()/Simply-Recipes-Soy-Sauce-Tamari-LEAD-01-7156e599e17c4a3dbf66204ad77759df.jpg "Soy Sauce vs Tamari: The Key Differences Every Australian Cook Should Know")
Soy sauce and tamari can look almost identical on the supermarket shelf.
Both are dark, savoury sauces that can add plenty of flavour to stir-fries, noodles, rice bowls, marinades and dipping sauces. For someone new to Asian cooking, it is easy to pick up either bottle and assume they are basically the same thing.
They are not quite the same.
The main difference traditionally comes down to how they are made and the ingredients used. Standard soy sauce is commonly brewed using soybeans and wheat, while tamari is traditionally associated with a higher proportion of soybeans and little or no wheat.
That difference can affect flavour, texture, cooking results and, importantly for Australian shoppers, whether a particular product is suitable for a gluten-free diet.
But there is more to the story than simply saying “tamari is gluten free”.
Product recipes can vary between brands, so checking the label is still important. In Australia, packaged foods making a gluten-free claim must contain no detectable gluten, and allergen information is required on food labels.
So, if you are standing in front of the Asian sauces section wondering whether to buy soy sauce or tamari, here is what you need to know.
What Is Soy Sauce?
Soy sauce is a fermented or brewed condiment traditionally made from soybeans, grains such as wheat, salt and water.
It has been used across Asian cuisines for centuries and is now a familiar ingredient in Australian kitchens.
The flavour is salty, savoury and deeply umami. Depending on the style, soy sauce can also have slightly sweet, malty or roasted notes.
There are many varieties of soy sauce, which is why the bottle labelled simply “soy sauce” is not necessarily the only type you will find in an Asian grocery store.
Light soy sauce is commonly used to season food and add savoury flavour.
Dark soy sauce is generally used more for colour and deeper flavour.
There are also naturally brewed and other styles with differences in production and taste.
For everyday Australian cooking, a good-quality regular or light soy sauce is often the most versatile starting point.
What Is Tamari?
Tamari is a Japanese-style fermented soy sauce that traditionally contains little or no wheat.
It has a reputation for having a richer, rounder and slightly less sharp flavour than many standard soy sauces.
Tamari is often thicker in texture too, although the exact characteristics depend on the product.
It can be used in many of the same ways as soy sauce.
Try it in:
- Stir-fries
- Noodle dishes
- Rice bowls
- Dumpling dipping sauces
- Marinades
- Salad dressings
- Vegetable dishes
- Tofu recipes
- Fried rice
Because tamari tends to have a full savoury flavour, it can work particularly well when you want a sauce to provide both seasoning and depth.
Soy Sauce vs Tamari: The Main Difference
The simplest way to understand the difference is to look at their traditional ingredients and production.
| Feature | Soy Sauce | Tamari |
|---|---|---|
| Main ingredient | Soybeans with wheat commonly used | Primarily soybeans |
| Wheat | Commonly present | Traditionally little or none |
| Flavour | Salty, savoury and balanced | Rich, deep and savoury |
| Texture | Usually thinner | Often slightly thicker |
| Common uses | Stir-fries, marinades, noodles and sauces | Stir-fries, dipping sauces, noodles and marinades |
| Gluten-free | Usually not, unless specifically labelled | Some products are gluten free, but check the label |
The important word here is usually.
Not every bottle follows exactly the same formula, so shoppers should not rely only on the name printed on the front.
Is Tamari Gluten Free?
This is probably the biggest question Australian shoppers have when comparing the two.
Tamari is often made without wheat, which is why it is widely associated with gluten-free cooking.
However, not every tamari product should automatically be treated as gluten free.
If you need to avoid gluten, look for a clear “gluten free” claim and check the allergen information on the packaging.
This is particularly important for people with coeliac disease.
Coeliac Australia explains that standard soy sauce contains wheat unless it is specifically labelled gluten free. It also notes that Australian gluten-free claims have a strict meaning, with products required to contain no detectable gluten.
So, the practical rule is simple: do not assume that tamari is gluten free just because it says tamari on the bottle. Check the product label.
Why Does Wheat Appear in Soy Sauce?
For people who have never looked closely at soy sauce ingredients, the presence of wheat can seem surprising.
Wheat is traditionally included in many soy sauce brewing methods alongside soybeans.
It contributes to the fermentation process and influences the finished flavour.
That is why conventional soy sauce is not automatically suitable for someone following a gluten-free diet.
For people without gluten restrictions, the wheat itself is not necessarily something to worry about. It is simply part of how many traditional soy sauces are made.
For people who do need to avoid gluten, however, the distinction matters.
Does Tamari Taste Better Than Soy Sauce?
There is no universal answer.
Taste is personal, and the flavour can vary considerably between brands.
Tamari often has a deeper, more rounded savoury character. Some people find it less sharp and more concentrated than regular soy sauce.
Soy sauce can have a lighter and more familiar salty-savoury profile, particularly in everyday stir-fries.
If you are making a simple dipping sauce, tamari can provide a rich base.
If you are seasoning fried rice or a large stir-fry, regular soy sauce can be a very practical choice.
The best option depends on the meal and your personal preference.
Which Is Better for Stir Fries?
Both work well.
For a traditional-style stir-fry, soy sauce is an easy starting point.
Combine it with ingredients such as garlic, ginger, sesame oil, oyster sauce or chilli to create a more complex sauce.
Tamari works particularly well when you want a stronger savoury flavour.
It can also be useful in vegetable and tofu stir-fries where there are fewer ingredients competing with the sauce.
A simple tamari stir-fry can be made with broccoli, mushrooms, carrots, capsicum and tofu.
Add noodles or rice and you have an easy weeknight dinner.
Which Is Better for Noodles?
Again, there is no clear winner.
Soy sauce is excellent in fried noodles, chow mein-style dishes and noodle stir-fries.
Tamari can be particularly good in noodle bowls where the sauce is one of the main flavours.
For a quick noodle sauce, try combining:
- Tamari or soy sauce
- Sesame oil
- Rice vinegar
- Chilli
- Garlic
- A small amount of sweetness
Toss it through cooked noodles with vegetables and your preferred protein.
It is a simple formula that can be adjusted depending on what is already in the refrigerator.
Can You Substitute Tamari for Soy Sauce?
Yes, in most recipes.
Tamari can generally be used instead of soy sauce in stir-fries, marinades, dipping sauces and noodle dishes.
However, because tamari can have a richer flavour, you may want to start with slightly less and adjust after tasting.
The reverse also works in many recipes.
If a recipe calls for tamari and you only have regular soy sauce, you can generally use soy sauce instead.
The main exception is when the recipe needs to be gluten free.
In that case, the replacement must also meet the appropriate gluten-free requirements.
What About Sodium?
Both soy sauce and tamari can be quite salty.
This is one reason they should be treated as seasoning rather than something to pour freely into a dish.
If you are cooking with several salty ingredients, such as soy sauce, oyster sauce, stock or miso, add them gradually.
Taste before adding more.
Some products are specifically marketed as reduced-salt or lower-sodium versions, but these are still products where the nutrition panel is worth checking.
Do not assume that tamari is automatically lower in salt than soy sauce.
The actual amount can vary from one product to another.
Can You Use Tamari for Dipping Sauce?
Absolutely.
Tamari can make an excellent base for a simple dipping sauce.
For dumplings, gyoza or spring rolls, try mixing tamari with rice vinegar, sesame oil and chilli.
You can also add finely sliced spring onion or a little grated ginger.
The same basic sauce can be adjusted to suit different foods.
For dumplings, make it sharper with extra vinegar.
For fried tofu, add chilli and sesame.
For noodles, add a little sweetness and garlic.
This is one of the easiest ways to make a pantry staple more useful.
Soy Sauce or Tamari for Fried Rice?
Soy sauce is probably the easiest choice for classic fried rice.
It adds colour, saltiness and savoury flavour while working well with eggs, vegetables, rice and meat.
Tamari can also be used, especially if you enjoy its deeper flavour.
The trick with fried rice is not to add too much sauce.
If the rice becomes overly wet, you can lose the dry, separate texture that makes good fried rice enjoyable.
Add a small amount around the edge of the hot pan and toss everything together.
Soy Sauce or Tamari for Marinades?
Both are excellent.
Soy sauce is commonly combined with garlic, ginger, sesame oil, chilli and a sweet ingredient for marinades.
This works well with chicken, beef, pork, tofu and vegetables.
Tamari can be used in the same way.
For a simple marinade, combine tamari with grated ginger, garlic, sesame oil and a little honey or another sweet ingredient.
Allow the food to absorb the flavour before cooking.
The result can work on the barbecue, in a frying pan or on a grill.
Which One Should Australian Beginners Buy?
If you are building your Asian pantry for the first time, regular soy sauce is probably the most straightforward place to start.
It is versatile and works in a huge range of dishes.
Once you become more comfortable cooking with Asian sauces, adding tamari gives you another option.
If someone in your household needs gluten-free food, then the shopping decision changes.
In that situation, carefully checking labels becomes more important than simply choosing between the two names.
Australian food labelling rules provide useful information for shoppers. Ingredients derived from wheat, rye, barley and oats must be declared, while products making a gluten-free claim must meet the relevant Australian standard.
What Should You Keep in Your Pantry?
For a practical Asian pantry, there is no need to buy five different bottles of soy-based sauces immediately.
Start with one versatile soy sauce.
If you regularly cook Japanese-inspired meals, noodle bowls or dipping sauces, add tamari.
If gluten-free cooking is important in your household, choose a clearly labelled gluten-free product and continue checking the packaging when buying a new brand.
A useful pantry might include:
- Regular soy sauce
- Gluten-free soy sauce or tamari, if required
- Sesame oil
- Rice vinegar
- Oyster sauce
- Chilli sauce
- Miso paste
- Noodles
- Rice
- Sesame seeds
These ingredients can be mixed in different combinations to create dozens of simple meals.
The Bottom Line
Soy sauce and tamari are close relatives, but they are not identical.
Soy sauce commonly contains wheat and has a lighter, salty-savoury character that makes it extremely useful for everyday cooking.
Tamari is traditionally made with little or no wheat and often has a richer, deeper flavour.
For most Australian home cooks, either can be a useful pantry ingredient.
The most important thing is to choose according to the dish you are making and your dietary needs.
And if you need a gluten-free product, do not rely on the word “tamari” alone. Check for a proper gluten-free claim and read the allergen information on the package.
Once you understand that small difference, the choice becomes much easier. Soy sauce is a reliable everyday classic, while tamari is a great option when you want deeper flavour or need a suitable gluten-free product.