How To Thicken Soy Sauce?




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Soy sauce is a common ingredient in many dishes around the world. It is a versatile condiment that can add a rich, umami flavor to soups, marinades, stir-fries, and more. However, sometimes you may want a thicker soy sauce that can coat your food better or add an extra depth of flavor to your dish.

This article will explore various methods on how to thicken soy sauce, tips and tricks to improve your results, and frequently asked questions about soy sauce.

Why Would You Want to Thicken Soy Sauce?

Thickening soy sauce can serve various purposes, including enhancing flavor, improving texture, and aesthetics.

Enhancing Flavor:

A thicker soy sauce can add more depth of flavor to a dish, particularly if you are using a lighter or low-sodium soy sauce. The thickened soy sauce can also create a more concentrated flavor, making it more robust and prominent in your dish.

Improving Texture:

Thicker soy sauce can create a better texture in your dish by adding a coating to your ingredients. This coating can help to lock in moisture, making your food more tender and juicy. It can also create a glaze on your ingredients, making it more visually appealing.


A thicker soy sauce can add an aesthetic touch to your dish, making it look more professional and elegant. This can be particularly useful if you are preparing a dish for a special occasion or serving it to guests.

Different Methods to Thicken Soy Sauce

different methods to thicken soy sauce

There are various methods to thicken soy sauce, each with its own advantages and disadvantages. Here are some of the most common methods:


Cornstarch is a popular ingredient to thicken sauces, including soy sauce. To thicken soy sauce with cornstarch, you need to mix cornstarch with water to create a slurry, then add it to the soy sauce while stirring continuously until it thickens.


Flour can also be used to thicken soy sauce. However, it can create a slightly grainy texture if not cooked properly. To thicken soy sauce with flour, mix flour with water to create a slurry, then add it to the soy sauce while stirring continuously until it thickens.

Xanthan Gum:

Xanthan gum is a plant-based thickener that is commonly used in the food industry. It is a popular choice for those who want to thicken soy sauce without adding a starchy or grainy texture. To thicken soy sauce with xanthan gum, mix a small amount of xanthan gum with soy sauce and stir until it thickens.

Reduction Method:

The reduction method involves simmering the soy sauce over low heat until it thickens. This method can create a more concentrated and robust flavor in your soy sauce.

Combination of Methods:

You can also combine different methods to thicken soy sauce. For example, you can use the cornstarch method and the reduction method together to create a thicker soy sauce with a more concentrated flavor.

Step-by-Step Guide on How to Thicken Soy Sauce

Now that you know the different methods to thicken soy sauce, let’s dive into the step-by-step guide on how to do it.


  1. Choose the method you want to use to thicken your soy sauce.
  2. Gather all the ingredients you need.
  3. Measure the ingredients according to your recipe.

Cooking Process:

  1. In a small saucepan, heat your soy sauce over medium heat until it comes to a simmer.
  2. If you are using the cornstarch or flour method, mix the cornstarch or flour with cold water to create a slurry. If you are using xanthan gum, sprinkle a small amount of it over the soy sauce and whisk it in.
  3. Pour the slurry or sprinkle the xanthan gum into the soy sauce while whisking continuously.
  4. Continue whisking until the soy sauce thickens to your desired consistency. This usually takes around 2-3 minutes.
  5. If you are using the reduction method, simmer the soy sauce over low heat until it thickens to your desired consistency. This can take up to 10-15 minutes.

Cool Down and Storage:

  1. Remove the soy sauce from the heat and let it cool down to room temperature.
  2. Transfer the soy sauce to a clean, airtight container and store it in the refrigerator for up to 2 weeks.

Tips and Tricks

Dos and Don’ts:

  • Do whisk continuously to prevent lumps from forming.
  • Do use a non-reactive saucepan, such as stainless steel or enamel, to avoid discoloration or metallic taste.
  • Do adjust the thickness of the soy sauce according to your preference.
  • Don’t overcook the soy sauce, as it can become too thick and gummy.

Alternative Techniques:

  • Instead of water, you can use chicken broth, vegetable broth, or beef broth to create a richer flavor.
  • You can add other ingredients, such as garlic, ginger, chili peppers, or brown sugar, to enhance the flavor of your soy sauce.

Flavor Additions:

  • Add a splash of rice vinegar or mirin to balance the saltiness of the soy sauce.
  • Mix in a tablespoon of sesame oil or peanut oil for a nutty flavor.
  • Add a pinch of five-spice powder for a more complex flavor.

Frequently Asked Questions

Is Soy Sauce Healthy?

Soy sauce is a low-calorie, low-fat, and low-carbohydrate condiment that can add flavor to your dishes. However, it is high in sodium, so it should be consumed in moderation, especially for those with high blood pressure or heart disease.

How Can I Fix Soy Sauce that is Too Salty?

If your soy sauce is too salty, you can dilute it by adding more water or broth. You can also add a small amount of sugar, honey, or mirin to balance out the saltiness.

Can I Thicken Soy Sauce with Gelatin?

Gelatin can be used to thicken sauces, but it is not recommended for soy sauce because it can create a jelly-like texture.

Can I Use Thickened Soy Sauce as a Dipping Sauce?

Yes, you can use thickened soy sauce as a dipping sauce for various dishes, such as dumplings, sushi, or grilled meats.


Thickening soy sauce is an easy and versatile way to add texture and depth to your favorite dishes. With the different methods and tips we’ve covered in this article, you can now experiment and create your own customized soy sauce to suit your taste.

Whether you prefer a thick and sweet sauce for your stir-fries or a thick and savory dip for your sushi, there’s a method that will work for you. Just remember to adjust the thickness and flavor according to your preference, and you’ll be able to enjoy your thickened soy sauce in no time!

So next time you find yourself with a thin and runny soy sauce, don’t worry. Just follow our guide, and you’ll be able to thicken it up in a few simple steps.

Happy cooking!

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