How Long Does Sauerkraut Stay Good in the Fridge: A Quick Guide


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Sauerkraut, a popular fermented food made from cabbage, is known for its tangy taste and numerous health benefits. As a fermented product, its shelf life is often a matter of curiosity for consumers who want to keep it fresh and delicious for as long as possible. In this article, we will explore how long sauerkraut stays good in the fridge, so you can enjoy this tasty food item without any concerns.

Proper storage plays a crucial role in maintaining the quality and longevity of sauerkraut. The fermentation process creates an acidic environment that makes it naturally resistant to spoilage. However, after opening a container of sauerkraut, it’s important to keep it refrigerated to ensure it stays fresh for an extended period. Typically, refrigerated sauerkraut can last for 2 to 6 months if stored correctly.

To make the most out of your sauerkraut, always store it in an airtight container and ensure that the cabbage remains submerged in brine. This will create a barrier against potential contaminants and help you enjoy the delicious sauerkraut for weeks or even months to come.

How Long Does Sauerkraut Stay Good in the Fridge?

Sauerkraut is a popular fermented food, cherished for its tangy taste and numerous health benefits. When it comes to storing this delicious dish, you might wonder how long it will stay good in the fridge.

Proper storage is key to ensure sauerkraut’s longevity. Likewise, understanding how long it can last in the fridge will help you plan your meals and keep your sauerkraut supply fresh. Keeping your sauerkraut in an airtight container or securely closing the original packaging is essential to maintaining its quality.

Salted sauerkraut can last for about 2 to 6 months when refrigerated, while properly fermented sauerkraut (with vinegar and salt) can last up to 2 years in your refrigerator 1. Additionally, sauerkraut and kimchi can often last a month or two past the printed expiration date on their package, if stored correctly2.

It’s important to note that the shelf life of sauerkraut may vary based on factors such as the quality of ingredients, preparation, and storage conditions. Observing any changes in the smell, texture, or taste will help you identify if the sauerkraut has started to spoil. Discard it if you notice any off-odors or mold growth.

In summary, when stored properly in the fridge, sauerkraut can last a considerable amount of time while maintaining its freshness and flavor. So go ahead and enjoy this fermented delight without worrying about its longevity in your refrigerator!

Factors Affecting Sauerkraut’s Shelf Life

Sauerkraut is a popular fermented food that can last for a considerable amount of time when stored properly. However, its actual shelf life in the fridge depends on several factors. In this section, we will discuss these factors, focusing on packaging and storage conditions, as well as the quality of ingredients.

Packaging and Storage Conditions

The way sauerkraut is packaged and stored plays a significant role in determining its shelf life. Here are some key points to consider:

  • Airtight containers: Using airtight jars or containers helps to prevent the growth of unwanted bacteria and mold, which can spoil the sauerkraut. Properly sealed containers can help sauerkraut last up to three months in the fridge.
  • Temperature: Keeping sauerkraut in the refrigerator slows down the fermentation process, helping to preserve its freshness and taste. Ideally, it should be stored at temperatures between 35°F and 40°F.
  • Location: Storing sauerkraut in the back of the fridge is recommended, as it helps to maintain a consistent temperature and avoid odor transfer to other food items.

Quality of Ingredients

The quality and freshness of the ingredients used to make sauerkraut can also impact its shelf life. Here are some aspects to consider:

  • Fresh cabbage: Starting with fresh, high-quality cabbage is essential for making long-lasting sauerkraut. Make sure the cabbage is firm, crisp, and free from any signs of decay or damage.
  • Quality salt: Using good quality, non-iodized salt helps with the preservation process. Sea salt or kosher salt are recommended due to their natural mineral content and low iodine concentration.
  • Proper fermentation: Ensure that the sauerkraut has been properly fermented before storing it in the fridge. The fermentation process helps to create a suitable environment for the growth of beneficial bacteria, which keeps the sauerkraut preserved and tasty.

By focusing on these factors, you can enjoy delicious and fresh sauerkraut for an extended period. Remember that even with proper handling and storage, it is always a good idea to check for signs of spoilage, such as off-odors, unusual taste, or mold growth, before consuming sauerkraut.

Signs of Spoiled Sauerkraut

Sauerkraut is a fermented food with an extended shelf life, but it can still go bad. In this section, we’ll discuss the signs to look for when determining if your sauerkraut has spoiled, including visual indicators, smell, and taste.

Visual Indicators

One of the first ways to determine if your sauerkraut has gone bad is by looking for changes in its appearance. Healthy sauerkraut should have a pale yellow or white color. Spoiled sauerkraut may exhibit the following changes:

  • Color change: If your sauerkraut has turned brown, gray, or another unusual color, it may be a sign that it has spoiled.
  • Mold: The presence of mold, especially in various colors like green, white, or blue, indicates that your sauerkraut has gone bad.
  • Sliminess: If the sauerkraut feels slimy to touch, it is likely that it has been contaminated by harmful bacteria.


A healthy batch of sauerkraut should have a tangy, slightly sour aroma. This is due to the fermentation process, which produces lactic acid. If your sauerkraut emits any of the following smells, it may be spoiled:

  • Rotten odor: A strong, rotten smell is a clear indicator that the sauerkraut is no longer safe to consume.
  • Mustiness: A musty smell can be a sign of mold or yeast development in the sauerkraut.
  • Overly pungent or sharp smell: An unusually strong or pungent odor may indicate that harmful bacteria have taken over the fermentation process.


Lastly, tasting a small amount of sauerkraut can also help determine if it has spoiled. A good batch of sauerkraut should have a tangy, slightly sour taste. If the sauerkraut exhibits any of the following flavors, discard it:

  • Unpleasant bitterness: A bitter or otherwise off-putting taste can be a sign that the sauerkraut is no longer safe to eat.
  • Strong, rancid flavor: A spoiled sauerkraut may have a strong, rancid taste that is different from its usual tangy flavor.
  • Excessive sourness: While sauerkraut is expected to be sour, an excessively sour taste could indicate spoilage.

By paying attention to these visual indicators, smell, and taste, you can ensure that you are consuming fresh, healthy sauerkraut and avoiding spoiled batches.

Tips to Extend the Life of Sauerkraut

Proper Fridge Storage

To extend the life of sauerkraut in the fridge, it’s essential to store it in an airtight container. This will help prevent contamination and slow down the fermentation process. Ideally, keep the sauerkraut submerged in its brine as well, as this can help retain its flavor and texture.

Also, maintain a consistent temperature within the recommended range of 32 to 41°F (0 to 5°C) when storing your sauerkraut in the fridge. This will help slow down the natural fermentation and maintain its quality. Properly fermented sauerkraut can last up to 2 years in the refrigerator.

Use Clean Utensils

Using clean utensils when handling sauerkraut is essential to prevent contamination and extend its shelf life. Use a clean spoon or fork when serving sauerkraut and ensure that no contaminated utensils come into contact with the sauerkraut. This practice will help avoid introducing unwanted bacteria or mold spores, prolonging the life of your sauerkraut.

Consider Canning or Freezing

If you have a large batch of sauerkraut and want to preserve it for longer periods of time, consider canning or freezing it:

  • Canning: Canned sauerkraut can have a shelf life of up to 3 years. To can sauerkraut, add the already fermented sauerkraut into your cans and top off with vinegar, which will act as the pickling fluid. Make sure to follow proper canning procedures to ensure food safety and preservation.
  • Freezing: Freezing is another option for preserving sauerkraut. Although it might affect the texture slightly, freezing can extend its life for several months or more. Pack the sauerkraut in airtight containers or freezer bags, leaving some headspace for expansion, and then store it in the freezer.

Bonus Tips

  • Always check your sauerkraut for any signs of spoilage like off smells or mold before consuming it. If you notice any, discard the sauerkraut immediately.
  • Experiment with adding different flavors when fermenting sauerkraut to create unique taste profiles and enjoy a variety of options during storage.
  • Serve sauerkraut as a side dish, use it as a topping for sandwiches, or incorporate it into various recipes to enjoy the health benefits of this fermented food and prevent it from going to waste.


Sauerkraut can last quite a long time when stored properly in the refrigerator. As stated by Fridge To Table, it can keep for several weeks in the refrigerator. To maintain its quality and taste, it is crucial to keep it submerged in brine within an airtight container.

Additionally, you may consider other storage methods for longer shelf life. For instance, sauerkraut can be frozen and remain good for several months, as suggested by Foodiedella. On the other hand, canned sauerkraut can have a shelf-life of up to three years, according to Grow Your Pantry.

When evaluating whether sauerkraut has gone bad, look for changes in texture, color, and smell – such as a drying or browning of the product. Bubbling during the first few weeks of fermentation is common, but it should subside. If unsure about the quality of your sauerkraut, it’s always wise to discard it and prepare a fresh batch.

In summary, sauerkraut can last a long time if cared for and stored correctly. Regularly check for signs of spoilage and keep it stored in optimal conditions—whether that is in the refrigerator, freezer, or through canning. With these practices, you’ll be able to enjoy delicious sauerkraut for an extended time without compromising its taste and nutritional value. Enjoy!


  1. Grow Your Pantry: How Long Does Sauerkraut Last?
  2. Wildbrine: How Long Does Sauerkraut Last?
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