How to Ferment Vegetables: 12 Steps (with Pictures) - wikiHow (2024)

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1Gathering Ingredients and Equipment

2Making Your Ferment

3Finishing the Ferment

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Last Updated: February 2, 2024Approved

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Fermenting vegetables by preserving them in liquid improves their nutritional profile and results in a tangy, crunchy, delicious final product. Kimchi and sauerkraut are popular variations, but almost any vegetable will ferment when submerged in liquid, often with salt or another starter culture added. Fermented vegetables last for many months, allowing one to enjoy the flavorful vegetables of summer all year round. See step 1 to get started.

Part 1

Part 1 of 3:

Gathering Ingredients and Equipment

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  1. 1

    Choose vegetables to ferment. The best vegetables to ferment are those that are in season and ripe, at the height of their optimal texture and flavor. Choose vegetables that were grown nearby, and opt for organic when possible. You can ferment one vegetable at a time, or pack several types together for a delicious "salad" of fermented vegetables. Here are a few popular choices:[1]

    • Cucumbers. Fermented cucumbers - pickles - are a great place to start if you've never fermented before. Try packing pickles alone or with onions, carrots and peppers. (Do not use waxed cucumbers. To see if a cucumber is waxed, scrape the cucumber with a fingernail. Ask for pickling cucumbers at the store.)
    • Cabbage. Fermenting cabbage turns it into tart, crispy sauerkraut.[2] Consider making kimchi for a spicy spin on cabbage fermentation.
    • Peppers. Peppers may be fermented on their own or packed with another vegetable to add some heat.
    • Green beans or asparagus. Pickled green beans or asparagus are a welcome treat in the winter months when the fresh green taste of summer is hard to come by.
  2. 2

    Decide how much salt to add. When vegetables are covered in a liquid solution, the natural bacteria present in their skin begins to break down the cellular structure in the process of fermentation. Vegetables will ferment in plain water, but their taste and texture is better with the addition of salt, which promotes the growth of "good" bacteria and inhibits the growth of "bad" bacteria, resulting in crispy, tasty vegetables.[3]

    • The standard amount of salt to add is 3 tablespoons per 5 pounds of vegetables. If you're on a low sodium diet, it's fine to add salt to taste.
    • The less salt you add, the quicker the vegetables will ferment. Adding more salt will cause the process to go more slowly.
    • If you don't want to add much salt, using a starter culture will help promote the growth of good bacteria and stifle the growth of bad bacteria. You can add whey, kefir grains, or dried starter culture to the mix and reduce the amount of salt. Be aware, however, that using a starter culture without any salt will result in less crisp vegetables.[4]

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  3. 3

    Choose containers to use. Wide-mouth, cylindrical ceramic crocks or Mason jars are commonly used to ferment vegetables. Since the vegetables and brining mixture will sit in their containers for weeks or even months, it's important to choose containers that won't leach chemicals into the mix. Ceramic and glass containers are the best choices; avoid containers made from metal or plastic.[5]

  4. 4

    Devise a weight and cover system. You'll also need lids that allow for airflow while keeping out insects as well as weights to pack the vegetables tightly. You can buy fermenting vessels that have a weight and cover system in place, or devise your own using less expensive household supplies.[6]

    • If you use a ceramic crock, find a small, heavy plate that fits inside the crock. Place a heavy jar or rock on top of the plate to serve as a weight. Drape a thin, clean cloth over the top to keep out insects.
    • If you use a mason jar, get a smaller mason jar that fits snugly inside the larger one. Fill it with water to serve as a weight. Drape a thin, clean cloth over the top to keep out insects.
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Part 2

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Making Your Ferment

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  1. 1

    Wash and process the vegetables. Be sure to rinse the skins of each vegetable thoroughly, then chop them in into strips or chunks. This creates greater surface area and helps along the fermentation process.[7]

    • If you're making sauerkraut, shred the cabbage into bite-sized strips.
  2. How to Ferment Vegetables: 12 Steps (with Pictures) - wikiHow (10)

    2

    Press the vegetables to release their juices. Place them in a bowl and use a meat tenderizer or kraut pounder to release the juices. If you wish to leave the vegetables mostly intact, you'll still need to press them in some way to start breaking down the cell walls. You can squeeze the vegetables or massage them to release their juices.

  3. How to Ferment Vegetables: 12 Steps (with Pictures) - wikiHow (11)

    3

    Add salt. Add salt to taste and use a spoon to mix it in with the vegetables and juice. If you're using a starter culture too, you can go ahead and add it as well.[8]

  4. How to Ferment Vegetables: 12 Steps (with Pictures) - wikiHow (12)

    4

    Place the mixture in your chosen vessel. Be sure to leave 3 inches (7.6cm) or so of empty space at the top of the vessel.[9] Use your hands or a kitchen tool to press the vegetables down to the bottom of the vessel so that the juices rise to cover the solid parts. If there aren't enough juices to cover the vegetables, top it off with water.

  5. How to Ferment Vegetables: 12 Steps (with Pictures) - wikiHow (13)

    5

    Weight and cover the mixture. To ferment, the vegetables must be weighted under the liquid. Place the weight system you have devised inside the vessel, making sure the plate or jar you are using fits snugly.[10] Cover the whole container with a light, tightly-woven cloth to keep out insects and still allow for airflow.

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Part 3

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Finishing the Ferment

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  1. 1

    Let the ferment sit at room temperature. Place it in a clean, dry area. The vegetables will immediately begin to break down and ferment. Make sure the room is not too hot or cold; it should be at comfortable room temperature.[11]1

  2. How to Ferment Vegetables: 12 Steps (with Pictures) - wikiHow (16)

    2

    Taste the ferment every day. There's no special moment at which a ferment is "ready" - it's all a matter of taste. After just a day or two, the ferment will develop a tang. Keep tasting it every day until it reaches the level of tartness you want. Some people like to eat the ferment right when it reaches their desired flavor profile. However, if you want to preserve the ferment for a long period of time, you'll need to move it.[12]

    • If some vegetables emerge at the top of the liquid, they may develop a layer of mold. Simply scrape this off and make sure the remaining vegetables are weighted under the liquid. The mold is harmless and will not ruin the ferment.
  3. 3

    Transfer the ferment to a cooler temperature. Place it in the cellar or in your refrigerator. This will slow down the fermentation process, allowing you to keep the ferment for several months. As the vegetables continue to ferment, their flavor will deepen. Keep tasting the ferment every few weeks, and eat it as soon as it tastes the way you want it to.[13]

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  • Question

    If I place vegetables in leftover pickle juice, will they become fermented?

    How to Ferment Vegetables: 12 Steps (with Pictures) - wikiHow (18)

    Community Answer

    No. Commercial pickles are not acidic through bacterial fermentation. They are acidic usually through the addition of white distilled vinegar. This liquid actually kills good bacteria needed for vegetables to ferment.

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  • Question

    I rinsed off the fermented carrots and threw away the liquid. How should I store the carrots?

    The carrots should not be rinsed and the liquid should not be discarded. Once the fermentation process has taken place, you store the jar in the fridge and eat it, juice and all.

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  • Question

    What causes the fermenting liquid to become dark and cloudy?

    How to Ferment Vegetables: 12 Steps (with Pictures) - wikiHow (20)

    Community Answer

    The liquid clouds as "the mother" or bacterial culture increases. That's good, but I've never had the liquids turn dark. I'd suspect this may be one of two things: 1. a bad species you accidentally introduced with hands or equipment that was not adequately washed beforehand. My advice would be to discard the batch. Sterilize all equipment and try again with very clean hands. 2. Make sure you are not using metal or metal lids, as dangerous leaching aluminum or other metals may have caused the darkening!

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      Things You'll Need

      • Vegetables
      • A knife and cutting board
      • Pickling salt
      • A large mixing bowl
      • A fermenting vessel (mason jar, ceramic crock, etc.)
      • A weight (mason jar, plate and rock, etc.)
      • A thin cloth covering

      Tips

      • Experiment with adding fresh herbs and spices to the ferments you make. Fresh dill goes well with cucumbers, fresh garlic pairs wonderfully with green beans, and fresh ginger compliments cabbage nicely.

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      • Use canning or pickling salts. Table salt may make brine cloudy.

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      • Ferment in soft water. Hard water may cause off-colors and cloudiness of the brine. If you have only hard water, boil the water and let it sit for 24 hours before fermenting.

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      About This Article

      How to Ferment Vegetables: 12 Steps (with Pictures) - wikiHow (28)

      Reviewed by:

      Marrow Private Chefs

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      This article was reviewed by Marrow Private Chefs. Marrow Private Chefs are based in Santa Rosa Beach, Florida. It is a chefs’ collective comprised of an ever-growing number of chefs and culinary professionals. Though regionally influenced primarily by coastal, traditional southern, cajun, and creole styles and flavors, the chefs at Marrow have a solid background in all types of cuisine with over 75 years of combined cooking experience. This article has been viewed 186,612 times.

      3 votes - 100%

      Co-authors: 7

      Updated: February 2, 2024

      Views:186,612

      Categories: Fruits and Vegetables

      Article SummaryX

      To ferment vegetables, chop them into strips or chunks, then use a meat tenderizer to press the vegetables until they start to release their juices. Stir in salt and pour the mixture into a fermenting vessel, leaving at least 3 inches of space at the top of the jar. If there aren’t enough juices to cover the vegetables, top them off with water. Place a weighted lid on the jar and let the ferment sit at room temperature for a few days, tasting it each day until it is as tart as you like it. If mold develops, don’t worry, you can simply scrape it off. For more tips, including when to move the fermentation to a cooler spot, read on!

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