Does Soy Sauce Go Bad?

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Soy sauce is a fermented condiment made from soybeans, wheat, salt, and water.

It has a rich, savory flavor and is used as a condiment or ingredient in many Asian dishes.

Soy sauce can be used as dipping sauce or can be used to prepare dishes like Sesame Chicken, Eggs with Soy Sauce Sauce & Scallions, Soy Sauce Salmon, Soy Sauce Chicken,…

Does soy sauce go bad?

Soy sauce does not go bad because it is fermented.

However, there are some factors that can affect the quality of your soy sauce.

Here’s what you need to know about soy sauce before using it on your next meal.

Soy Sauce2

How long does soy sauce last?

Soy sauce doesn’t go bad, but it can lose its flavor, become too salty, or even spoil and turn brown if exposed to air.

If you have some left over after making your favorite dish, try adding it to miso soup or use it in place of Worcestershire sauce instead of balsamic vinegar in salad dressings.

The shelf life of soy sauce depends on how old it is when you open it up.

The oldest soy sauce usually has the longest shelf life.

This is because it is aged with koji (a fungus that grows on rice) which helps preserve it.

However, this type of soy sauce is very expensive so most of us don’t bother with it.

If you bought a bottle of soy sauce that was opened more than six months ago, it will probably be fine.

But if you found one opened more than two years ago, there’s a good chance it has spoiled.

You should throw it out immediately.

Even if it still looks okay, it could be rancid and cause food poisoning.

Soak any leftovers in hot water before using them.

If you find a soy sauce that hasn’t been opened for longer than six months, it should be just fine.

However, if it’s been opened for less than six months, discard it.

It might be okay, but it could also be moldy or contaminated with bacteria.

In either case, it isn’t safe to consume.

Soy sauce that has been opened for about a year should also be discarded.

If it smells bad, it likely has gone bad.

Also, avoid soy sauce that has a dark brown film floating on top.

This is called kuroko (black lacquer), and it means the soy sauce has spoiled.

Throw it away immediately.

If you are going to store soy sauce for an extended period, keep it in a cool, dry place.

A refrigerator is too cold and sunlight is too bright.

Soy sauce keeps well at room temperature for about three weeks, but it starts losing its strength after five days.

When you open it, stir it around to mix the flavors together.

That way, the flavors won’t separate and your sauce will stay fresh longer.

According to the USDA, soy sauce lasts for about six months unopened, but it loses most of its flavor during this time.

Once it is opened, it should be kept refrigerated and used within four months.

After that, it should be thrown out.

Soy sauce is best when stored in a tightly sealed container.

In Japan, soy sauce is considered an essential part of every meal.

They drink it as a beverage.

Some people even add it to their toothpaste!

Does Soy Sauce Go Bad? 1

What are the signs that soy sauce has gone bad?

Because soy sauce is fermented, it does not go bad.

However, it can change in color or taste over time.

Here are some of the most common signs that soy sauce has gone bad:

  • The smell of vinegar.
  • Culinary experts say that soy sauce loses its flavor when exposed to air for too long, so you should store your soy sauce in a tightly sealed container. If you notice any of these signs, discard the soy sauce immediately.

Can you still use soy sauce after it has gone bad?

Yes, you can still use soy sauce even if it has gone bad.

Although it will lose some of its flavor, it still works well as a seasoning.

However, you should avoid using it as a cooking ingredient since it loses much of its nutrients when cooked.

To store your soy sauce properly, keep it out of direct sunlight, away from heat, and away from moisture like condensation.

If you have any concerns about the smell or appearance of your soy sauce, discard it immediately.

There are many different types of soy sauces that you can buy at the grocery store, so check the label before purchasing.

Some soy sauces are lighter in color while others look darker due to the addition of caramel coloring.

Also, some brands contain high levels of sodium, which can be unhealthy for dogs.

Read more about choosing the right dog breed for you here!

You can also find soy sauce on

The product listing includes reviews from customers who have purchased the product.

These reviews provide valuable insight into how well your product performs.

If you want to learn more about keeping your dog healthy, read our article on how to keep your pet in tip top shape.

How can you tell if soy sauce has gone bad?

Although soy sauce doesn’t spoil like other foods, it will eventually lose its freshness.

If the soy sauce looks faded or smells bad, it probably isn’t good anymore.

You should throw out any soy sauce that loses its original flavor or turns an unusual shade of brown.

The shelf life of soy sauce varies widely depending on the brand.

Some brands have a three-year shelf life while others have only one year.

Check the label for the expiration date.

If you find a bottle of soy sauce with no expiration date, you can still use it until it reaches its expiration date.

The expiration date simply indicates how much longer the product can be stored before it starts losing its freshness.

Once the expiration date has passed, you should throw away the soy sauce.

When you open a new bottle of soy sauce, you might notice the smell right away.

What you don’t realize is that soy sauce usually has a strong odor when it first goes into storage.

Soy sauce is actually produced by fermenting soy beans, which give off a strong odor when they are cooked.

When you open a new bottle, the aroma is trapped inside the bottle.

This is why your nose gets used to the scent of soy sauce when you first start using it.

As the bottle sits for months or years, the smell gradually disappears.

You can also add a small amount of vinegar to soy sauce to help mask its unpleasant odor.

To do this, put about 1/4 cup of white distilled vinegar in a bowl and mix it with 2 tablespoons of soy sauce.

Store this mixture in a sealable container and keep it in a cool place (not the refrigerator).

This mixture will absorb the odors that soy sauce leaves behind.

After a few weeks, the smell will disappear completely.

What does bad soy sauce taste like?

While most people think that soy sauce tastes great, some people are disappointed when they find out that their favorite brand of soy sauce isn’t quite what they had hoped it would be.

If you have ever wondered how long soy sauce lasts, this article will help answer your questions about the shelf life of soy sauce.

How do you store soy sauce to prevent it from going bad?

Soy sauce is a fermented product that goes bad if exposed to air.

To keep the soy sauce fresh longer, store it in an airtight container with a tight lid.

When storing soy sauce, make sure that there are no holes in the lid because air can leak through them.

Also, make sure that the soy sauce stays upright so that bacteria cannot grow on its surface.

If you want to know how long soy sauce lasts, then follow these steps:

  • Put your soy sauce into a clean glass jar with a tight lid.
  • Wipe off any dirt and moisture around the rim of the jar with a clean cloth.
  • Tightly close the lid.
  • Store your jar in a cool, dark place.
  • Do not refrigerate.

The shelf life of soy sauce depends on the type of soy sauce you have purchased.

Some types of soy sauce will be more susceptible to spoilage than others.

For example, some brands of soy sauce contain high levels of sodium, which could cause the soy sauce to ferment quickly.

If that happens, the best thing to do would be to throw out the soy sauce and buy another brand of soy sauce.

Is it safe to eat soy sauce that has gone bad?

When soy sauce starts to spoil, it loses its ability to preserve food.

This means it no longer retains the same amount of acidity or saltiness when compared with fresh soy sauce.

If you have any leftovers, it will eventually become too salty for consumption.

However, if it is still good, it can be kept indefinitely.

When purchasing soy sauce, look for a dark brown colored label on the bottle, which indicates that it is still suitable for cooking and eating.

The main ingredients in soy sauce are soybean paste (which contains carbohydrates), wheat flour (which provides protein), salt, and water.

These four elements combine to create an acidic mixture that creates the characteristic flavor of soy sauce.

In order to ensure a high quality product, manufacturers use a starter culture to ferment their sauces.

This culture promotes the growth of yeast and other microorganisms, which produce alcohol and carbon dioxide during the fermentation process.

When this occurs, they create the tangy, salty, and slightly sweet flavor found in soy sauce.

Soy sauce can be stored at room temperature for up to one year.

Once opened, however, it should be refrigerated until all of the remaining liquid evaporates.

This prevents the formation of mold and bacteria, which can cause illness.

What are the consequences of eating soy sauce that has gone bad?

Because soy sauce is fermented, it does not go bad, but it may change in color or taste over time.

The longer soy sauce sits at room temperature, the more likely it will lose its original flavor.

If you have leftover soy sauce, store it in the fridge to preserve its freshness.

How can you avoid getting soy sauce that has gone bad?

Soy sauce is an excellent product because it is preserved by fermentation.

The fermentation process kills off the bacteria that would cause the soy sauce to spoil, so it will never go bad.

However, this means that the shelf life of soy sauce depends on how well it was stored before it was opened for use.

The best way to store soy sauce is to keep it at room temperature.

If you have a large quantity of soy sauce, you might want to refrigerate it instead.

As long as your soy sauce stays out of direct sunlight, you should be fine.

What does the type of soy sauce you buy matter?

There are four main types of soy sauce you can find: light, dark, low-sodium, and no added MSG (MSG stands for monosodium glutamate).

Light soy sauce is the least salty, while dark soy sauce is the most.

Low-sodium soy sauces are sodium free, but they still contain some of the other ingredients found in regular soy sauce, like wheat flour, sugar, and salt.

When shopping for soy sauce, look for the words “light” or “low-sodium.”

You can also check the ingredient list on the back of the bottle to see if it contains any additives.

Soy Sauce Salmon

Soy Sauce Salmon

This Japanese dish is simple to make and can be enjoyed by all.
Prep Time 10 minutes
Cook Time 33 minutes
Total Time 43 minutes
Course Main Course
Cuisine Japanese
Servings 2
Calories 942 kcal


  • 1 nonstick skillet


  • 400 grams tofu silken
  • 1 teaspoon of salt
  • 1/2 teaspoon turmeric
  • 1/2 teaspoon black pepper
  • 1/2 teaspoon mustard seeds ground
  • 1/4 cup of olive oil
  • 1/2 cup of water
  • 1/2 cup of lemon juice
  • 1 tablespoon tamari


  • To make the marinade, mix together the silken tofu, salt, turmeric, black pepper, mustard seeds, olive oil, water, and lemon juice.
  • Marinate the tofu for at least two hours.
  • If you prefer, you can skip the tofu and marinate the fish directly.
  • Just be sure to coat the fish thoroughly with the marinade.
  • Once the fish is ready, bring a pot of water to boil.
  • Add the fish and simmer for 10 minutes.
  • Remove from the heat, drain, and set aside to cool slightly.
  • Once the fish is cooled, slice it thinly.
  • Place the slices in a shallow dish, then pour on the marinade and toss to coat the fish evenly.
  • Cover the dish tightly and refrigerate for 20 minutes.
  • Heat up a nonstick skillet with a little bit of oil.
  • When the oil is hot, remove the lid and carefully add the slices.
  • Let the fish cook for 3 minutes per side, until golden brown and crispy.
  • Remove from the pan and serve immediately.



Calories: 942kcalCarbohydrates: 136gProtein: 44gFat: 28gSaturated Fat: 4gPolyunsaturated Fat: 3gMonounsaturated Fat: 20gSodium: 1670mgPotassium: 118mgFiber: 14gSugar: 20gVitamin A: 15IUVitamin C: 63mgCalcium: 383mgIron: 11mg
Keyword Soy sauce salmon
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