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    Nourished Kitchen » Fermentation » Fermented Vegetable Recipes » Homemade Sauerkraut

    Posted: May 20, 2019 · Updated: Aug 24, 2020 by Jenny McGruther · This post contains affiliate links.

    Homemade Sauerkraut

    Homemade sauerkraut, all salty and sour, is brilliantly easy to make at home. All you need is two simple ingredients: cabbage and salt. And then plenty of time to allow probiotics to do their work, producing a vibrantly complex and delicious food.

    Jump to Recipe | What is it? | Benefits | Tips | Storage | Fermentation | Crocks | Variations

    Sauerkraut made from shredded cabbage and sea salt sits in a glass bowl.

    What is sauerkraut?

    Sauerkraut is a traditional fermented food made by allowing shredded cabbage and salt to ferment over a period of time. After fermenting for a period of weeks or months, it produces a potent sour side dish that is rich in beneficial bacteria.

    You'll find similar dishes made from fermented cabbage, like kimchi and curtido, throughout the world, sauerkraut has its roots in German and Eastern European cooking.

    Like most fermented vegetables, it's easy to make at home and you only need two very simple and inexpensive ingredients: cabbage and salt.

    Is it good for you?

    Like all fermented foods, sauerkraut is rich in beneficial bacteria(1). It is particularly rich in lactobacillus bacteria that you can also find in foods like kefir, sour pickles and yogurt.

    These beneficial bacteria help support gut health and immune system function. They also help to enhance your body's ability to manufacture and absorb key nutrients (2). Further, they can also help to support your immune system in cases of food borne illness or digestive distress (3).

    Beyond support for digestion, sauerkraut and other fermented foods also show promise in supporting blood sugar regulation, metabolic health and cardiovascular health (4). While the mechanism isn't fully understood, researchers have found that probiotics help to support optimal weight (5,6), but it largely depends on the specific bacteria.

    Fermenting cabbage also releases key phytonutrients that support cellular health. Researchers have examined how these nutrients may prove helpful in the battle against breast cancer (7).

    Tips for Making Homemade Sauerkraut

    It's really easy to make sauerkraut, but there's a few things you should keep in mind to make sure that your kraut comes out perfect every time.

    • Shred the cabbage very thinly. For the best texture, avoid food processors and cut your cabbage by hand or with a cabbage slicer.
    • Flavor it. Once you get the hang of making it, consider flavoring sauerkraut with fruits, vegetables, specialty salts, herbs and spices.
    • Keep the cabbage completely submerged in brine. Brine keeps your cabbage safe during fermentation, and less prone to mold.
    • Limit airflow. Your sauerkraut should ferment in an anaerobic environment that allows carbon dioxide to escape without letting oxygen in. An airlock or fermentation crock is useful.
    • Taste it. After a few weeks of fermentation, your homemade sauerkraut will be ready to try. Taste it periodically to see if it's sour enough for your liking.
    • If it's too salty, soak it in cold water for 20 minutes to reduce the salt content.
    • Watch for signs of contamination. Sliminess, a putrid smell, and visible mold on the cabbage itself are all signs that your sauerkraut has gone bad. It's best to discard it and start over.

    Salt and Successful Fermentation

    At its simplest, good homemade sauerkraut needs only salt and cabbage. When it comes to fermentation, salt performs a few important functions.

    First, salt helps to create an environment that favors lactobacillus bacteria. Those are the beneficial bacteria that make fermented vegetables both tasty and healthy. It also helps to keep other microbes like mold at bay until your fermentation is well underway. So we use salt for both safety and flavor.

    Secondly, salt helps keep your ferments crisp. Without salt, your sauerkraut will become limp and mushy.

    How much salt should you use?

    Fermented vegetables like cabbage generally do well with 2-3% salt by weight. That means that for every pound of cabbage you use, you should also use 1 ½ to 2 teaspoons salt.

    You can also weigh your cabbage using a kitchen scale, and then use 20 to 30 grams salt for every kilogram cabbage.

    How to Store It

    Fermentation preserves cabbage and other vegetables naturally. That's because the lactobacillus bacteria that ferment foods release lactic acid which, like vinegar, preserves foods and keeps them safe for long-term storage.

    If you're making a small amount of sauerkraut, tucking your jar into the fridge is usually sufficient. But if you're making more than a quart or two, you may need to find other ways to preserve it.

    Once you've finished making sauerkraut, you can preserve it a number of ways:

    • Canning sauerkraut is a popular method, but it's unnecessary for long-term storage. The high heat required for canning destroys the beneficial bacteria and delicate food enzymes found in sauerkraut. If you're intent on canning, follow safe guidelines.
    • Refrigeration is the easiest and most intuitive way to preserve fermented vegetables. Cold temperatures slow down the fermentation process. Make sure you store your kraut in its brine, and it will keep at least 6 months.
    • Root cellars are traditionally used to store ferments and cold-hardy crops. The low, even temperature functions similar to refrigeration and slows down the fermentation process, allowing you to store them at least 6 months.
    • Freezing sauerkraut in food-safe containers is another option. Freezing temperatures may damage the probiotics over time and reduce their numbers (8).

    How long should you let it ferment?

    When you bake, there's a clear finish time. Accordingly, you pull them out of the oven when the timer sounds its alarm, or you risk burning them. But with fermented vegetables, there's much greater nuance.

    First, you want to make sure that fermentation has started. So, you'll want to look for signs of microbial activity. Bubbling and foaming usually begin within about three days, depending on the temperature of your kitchen. And once you see bubbles forming, you'll know that fermentation is underway.

    But how do you know when it's done?

    Fermentation is complete when your sauerkraut tastes pleasantly sour. It should have a sour aroma similar to vinegar, but less pronounced.

    So, if you've seen signs of active fermentation, like bubbles, and it smells pleasantly sour, it's safe to eat. You can continue to let it ferment so that it develops a rich, complex flavor and deep sourness. And just transfer it to the fridge when it tastes right to you.

    When considering fermentation time, keep the following in mind:

    • Colder temperatures cause food to ferment more slowly, so your sauerkraut may take longer.
    • Warmer temperatures cause food to ferment quickly, so it might need less time.
    • Smaller volumes take less time than large volumes.

    Fermentation Crocks, Jars and Other Equipment

    When making sauerkraut, you'll need a container to ferment your cabbage. Because fermentation is an anaerobic process - that is it's best without the free flow of oxygen, you'll need an airtight jar or crock. When oxygen flows freely into your ferments, it can cause mold.

    Many home fermenters use mason jars, especially when they're just beginning. But it's wise to invest in special fermentation equipment for making sauerkraut.

    Ideally, your container is a jar or crock that allows the carbon dioxide that builds up during fermentation to escape without letting oxygen in.

    Use the Right Equipment

    • Glass Jars with Weights and Fermentation Lids. These are inexpensive and perfect for small batches of a quart or less. Weights keep your sauerkraut submerged while fermentation seals keep oxygen out, and both help you to ferment safely. Find weights here and fermentation lids here.
    • Stoneware crocks are heirloom-quality pieces. They come with heavy weights and have a well that you fill with water, which keeps oxygen out. They're excellent for large batch fermentation of 1 gallon or more.

    How to Make Sauerkraut

    If you're making homemade sauerkraut, you'll need to start with fresh cabbage. Very fresh cabbage from the garden or farmers market works best because it has a high water content, which means more juice for your brine.

    After tossing any bruised leaves into the compost bin, you'll core the cabbage and then slice it very thinly. Then mix it with salt and let it macerate until it softens and releases its juice.

    Then, after kneading or squeezing the cabbage and salt together to fully release the juice, pack it tightly into jars or your crock. Weigh the cabbage down with glass or stoneware weights or a cabbage leaf, seal your crock. Next, let it ferment away from direct sunlight at least 2 weeks for small volumes and up to 6 months for large volumes, depending on how sour you like it.

    Rate this Recipe
    4.88 from 8 votes

    Homemade Sauerkraut Recipe

    Sour and richly complex, sauerkraut is a vibrant fermented food with deep flavor. While making sauerkraut at home can seem complicated, it's actually marvelously easy. And you only need two ingredients: cabbage and salt.
    Prep Time20 mins
    Fermentation30 d
    Total Time30 d 20 mins
    Servings: 8 servings (1 quart)
    Print Save Recipe Saved!

    Ingredients

    For the Sauerkraut

    • 2 pounds cabbage (from 1 head)
    • 4 teaspoons finely ground real salt

    Special Equipment

    • Jar
    • Glass Weights
    • Airlock

    Instructions

    • Remove any bruised or damaged exterior leaves from your cabbage, and then slice it in half cross-wise. Remove the cabbage's core, and then slice the cabbage into strips no wider than ⅛-inch thick.
    • Toss cabbage and salt together in a large mixing bowl and let it rest about 20 minutes, or until the cabbage begins to soften and release a little juice. Then squeeze the cabbage with your hands to to soften it even further, and help it to release more juice.
    • When the cabbage has become limp and has released ample juice, transfer it to your jar. Pack the sauerkraut tightly into your jar, using a kraut pounder or a wooden spoon, so that the cabbage continues to release its liquid and no air bubbles remain.
    • Continue packing the cabbage into the container until the cabbage is completely submerged by its liquid. Place weights over the cabbage, and then seal the jar with your airlock. Allow the cabbage to ferment at room temperature and away from direct sunlight at least 1 month, or until done to your liking. When the sauerkaut is sour enough for your liking, transfer it to the fridge where it will keep at least 6 months and up to 1 year.

    Notes

    To use a traditional stoneware crock, consider quadrupling this recipe. Most crocks ferment a minimum of 4 liters of sauerkraut.  Use 8 pounds of cabbage and ¼ cup fine sea salt, prepare the cabbage and salt exactly as described above, but pack it into a stoneware crock.  Cover the cabbage with stoneware weights, seal the crock and fill its well with water to complete the airlock.
    Tried this recipe?Mention @nourishedkitchen or tag #nourishedkitchen!

    Variations

    Basic sauerkraut contains only cabbage and salt, but once you have the hang of making it, it's worth trying a few variations. You can add all sorts of different herbs, spices, and vegetables to flavor your kraut.

    Use red cabbage instead of white. Red cabbage gives the kraut a deep purple color, and a mix of both red and white yield a bright pink kraut.

    Add jalapenos and garlic, as in this hot pink jalapeno garlic kraut. They have a lively flavor.

    Caraway and dill are a nice addition too.

    Juniper and sliced apples work well too, and it's a popular blend in central Europe.


    More fermented vegetable recipes:

    • Kimchi
    • Hot Pink Jalapeño Garlic Kraut
    • Sour Pickles
    • Fermented Hot Sauce

    Article Citations and Resources

    1,2) Swain, M. R., Anandharaj, M., Ray, R. C., & Parveen Rani, R. (2014). Fermented fruits and vegetables of Asia: a potential source of probiotics. Biotechnology research international, 2014.
    3) Johnston, B.C., et al. (2012) Probiotics for the prevention of Clostridium difficile-associated diarrhea: a systematic review and meta-analysis. Annals of Internal Medicine. 157(12), 878-888
    4) Kok, C.R. & Hutkins, R. (2018). Yogurt and other fermented foods as sources of health-promoting bacteria. Nutrition Reviews.
    5) Sánchez, Marina. et al. Effect of Lactobacillus rhamnosus CGMCC1.3724 supplementation on weight loss and maintenance in obese men and women. The British Journal of Nutrition. 111(8)
    6) Osterberg, K. et al. (2015). Probiotic supplementation attenuates increases in body mass and fat mass during high‐fat diet in healthy young adults. Obesity Research Journal.
    7) Licznerska, B. E., Szaefer, H., Murias, M., Bartoszek, A., & Baer-Dubowska, W. (2013). Modulation of CYP19 expression by cabbage juices and their active components: indole-3-carbinol and 3,3'-diindolylmethene in human breast epithelial cell lines. European journal of nutrition, 52(5), 1483–1492.
    8) HARRISON A. P., Jr (1955). Survival of bacteria upon repeated freezing and thawing. Journal of bacteriology, 70(6), 711–715.

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    Reader Interactions

    Comments

    1. Bryson Fico says

      February 21, 2021 at 4:46 pm

      5 stars
      It’s crunchy and delightfully sour, perfect for topping a round of beer-braised brats or layering into a big sandwich. I think I made too much. Oh well, I will share it.

      Reply
    2. Kay M. says

      February 01, 2021 at 12:47 pm

      5 stars
      I made mine, for the first time, using a 1 gallon jar. It took 3 heads of cabbage and lots of tamping. It had enough brine, but I would tamp it down once or twice per day. I didn't use any weight on it, just the tamping each day. I used a coffee filter and rubber band instead of cover. The coldest spot in my house is in the laundry room. After 3 days I tried it, and each day after, also. When it got to be 2 weeks, I knew it had to be the best, and it was.
      During the fermentation process, if I saw a spot on the glass that looked like mold (blue/black color), I would wipe it away with a paper towel. Knowing I wanted to put it in smaller jars, after fermentation I wiped the inside of the jar out really well with paper towel, and filled smaller, clean jars with lids and put them in the fridge.
      I found this kraut to be the tastiest, and crunchiest kraut I've ever had. I will definitely make this again!!!

      Reply
    3. Jeanne says

      November 16, 2020 at 8:12 pm

      5 stars
      Thank you!

      Reply
    4. Angie says

      July 09, 2019 at 1:58 pm

      5 stars
      So I tried this, but I added caraway seeds - and I think it turned out really good. I let it ferment 6 weeks though, not 30 days. Would garlic be okay to add, too?

      Reply
    5. Amber says

      June 12, 2019 at 8:59 am

      5 stars
      I really liked this recipe. I added some chopped garlic to it, and it was great.

      Reply
    6. Hannah says

      August 24, 2016 at 11:11 am

      Can I use a mason jar that has a hermetically sealed lid in order to acquire the anaerobic environment?

      Reply
    7. Mike says

      May 10, 2013 at 4:11 am

      4 stars
      Awesome easy and fun recipee!
      How long can the fermentation be perpetuated; indefinately? Just add new ingredients?
      Mine is working great; just wondering how long I can keep it going.
      Thanks!
      Mike

      Reply
    8. Steve Klebaur says

      March 29, 2013 at 12:32 am

      5 stars
      Thanks for a great article! I've found that the one time outlay of cash for a Harsch-type crock ( I have the Polish version, which works wonderfully) is well worth the cost for the time and labor it saves. Using one of these crocks with the water-lock moat at the top eliminates the need to open the crock at all, since it creates an anaerobic environment which doesn't support mold growth.

      Reply
    9. Laurie P says

      April 14, 2012 at 3:56 pm

      5 stars
      I love making cultured veggies. Just so great to see you sharing this simple recipe with pictures as well as instructions. Just wondering about the glass jars with the air lock. Can't seem to find a link to where to purchase them. May you have a great day!

      Reply

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