Last Updated: 
This post may contain affiliate links which won’t change your price but will share some commission.
Discover the art of transforming fresh-picked radishes into gut-healing superfoods! I’ll show you how to create flavorful fermented radishes effortlessly. Enhance salads, top tacos, or enjoy them as a crunchy snack. Join me on this fermentation journey, become a Fermentation Ninja, and unlock affordable probiotics in every bite.
Today I’m going to show you just how simple it is to transform fresh-picked radishes into gut-healing superfoods that can be added to a salad, used as a topping for tacos, or crunched on for a snack.
I spent a few summers perfecting my “Perfect Pickle Process” to create flavorful fermented vegetables with just the right texture and tang… batch after batch.
Krowning how much salt to use, the best temperature for fermentation, and how to avoid mold and yeast growth can transform you into a Fermentation Ninja in no time.
Fermented radishes, along with naturally fermented carrots, cucumber pickles, or beets are delicious, easy to make, and an inexpensive way to get probiotics into your diet.
Fermented radishes are a great ferment for first-time fermenters.
Rarely does something go wrong during fermentation,
And…
They’re ready in a short time.
Before I get to the recipe, let me share a few benefits:
Benefits of Fermented Radishes
There are several reasons why you might consider fermenting radishes:
- Improved digestion. Fermenting radishes, and other vegetables, breaks down their fibers, and makes them easier to digest.
- Enhanced flavor. Fermenting radishes brings out their natural sweetness and tanginess and adds a pleasant sourness. The result is a unique and delicious flavor that enhances the taste of your meals.
- Increased nutritional value. Fermentation increases the bioavailability of certain nutrients, such as vitamin C. This means that your body can better absorb and utilize these nutrients.
- Extended shelf life. Fermenting radishes extends their shelf life. Ferment them when in season, enjoy them all year. A perfect way to extend the harvesting season!
Fermenting radishes can be a fun and delicious way to experiment with fermentation and add a unique twist to your meals while providing potential health benefits.
How to Make Fermented Radishes
First Off, Don’t Use a Brine Chart
My recipe for naturally fermented vegetables is different than most of the other recipes on the internet that rely upon numbers off a brine chart.
Most recipes have you pack your jar with vegetables, mix a salty brine, and then pour that into the jar.
Results will vary greatly because the weight of the vegetables you packed into the jar varies greatly.
As I researched and developed recipes for my In A Pickle! online course, I realized that you can’t have consistent, safe, mold-free results by just pouring a salty brine into a jar of packed vegetables.
The bacteria responsible for fermentation, need a set salt concentration to create the lactic acid necessary for a safe ferment.
You have to know the weight of both the vegetables and the water in your jar and calculate your salt based on that.
Once you know this weight, you multiply it by the recommended salt concentration for the vegetables being fermented and then add the correct number of grams of salt to the jar.
Don’t worry, it’s simple to do and I’ll take you through it step by step.
Salt Concentration Chart FREE Download
Use the button below to get your own printable Salt Concentration Chart.
First, gather your ingredients, chose a flavoring options, see the recipe in pictures, and then reveiw my tips for success
Gather Ingredients
- Radishes. Fresh, local, and organic, if possible. In this recipe I used the commonly found red radish. Bunches should feel firm with bright, green leaves.
- Salt. Iodine-free salt is best. I like to use a mineral-rich, unprocessed salt: Real Salt or Himalayan pink salt.
- Pure Water. Chlorine-free water is best as chlorine can interfere with the fermentation process.
- Seasonings. Chose from the flavoring options below.
Choose a Flavoring Option
Fermented radishes have a tangy, slightly sour flavor that can be enhanced with various flavorings. Here are some ideas for flavoring fermented radishes:
- Garlic. Adding garlic to your fermented radishes can give them a delicious and aromatic flavor.
- Herbs. Adding fresh herbs such as dill, thyme, or basil can give your fermented radishes a unique and delicious flavor.
- Spices. Spices such as anise, fennel, cumin, coriander, or mustard seeds can add a complex and flavorful dimension to your fermented radishes.
- Citrus. A squeeze of fresh lemon or lime juice can add a bright, zesty flavor to your fermented radishes.
Experiment with different flavorings to find your favorite combination and enjoy the delicious and nutritious benefits of fermented radishes.
Gather Ingredients
Fresh radishes are your best choice. Look for bunches with bright green leaves and radishes that feel solid. Select and prepare flavoring option.
Weigh Jar
Place jar on scale and Tare (zero out), OR, obtain the weight—tare—of your jar (471 grams, for example). Write this number down.
Prepare Radishes
Remove tops and tails. Rinse clean. Then, quarter radishes into wedges or slice no thinner than 1/4 inch. You want chunks, not thin slices which fermenter too quickly.
Add Flavor Option
Garlic, onions, dill, and various spices can all be used to flavor your fermented radishes. In the recipe below, I give you several suggestions.
Fill Jar with Water
Pour water into the jar, stopping 1-2 inches below the threads of the jar.
Obtain Weight of Veggies + Water
In this example, using the MyWeigh KD8000 scale, the weight for the radishes AND the water is 815 grams.
Calculate & Add Correct Grams of Salt
Radishes require a 2.5% total salt concentration.
Multiply the weight of the contents in your jar by 0.025 (815 x. 0.025 = 20.37, for example).
Tare a small dish and weigh the correct grams of salt (20 grams, for example).
Add this salt to your jar of radishes. Screw on the canning lid and rim that came with your jar and shake for one minute to dissolve the salt.
Radishes Ready for Fermentation
Remove the canning lid and rim used to shake and dissolve salt.
Add a fermentation weight and screw a fermentation lid on snugly, or a plastic lid left a tad loose. Place your jar in a shallow dish on your counter out of direct sunlight to ferment for 7-14 days.
Get ready to be surprised by the wide variety of pickles you can safely & easily preserve at home.
Learn the Perfect Pickle Process in my online program and “grow” your own probiotic-rich superfoods. YUM!
Tips to Successfully Ferment Radishes
- Use a 2.5% total salt concentration.
Use 2.5% salt by weight for the weight of both the vegetables and the water in your jar. - My favorite salt for fermentation is Himalayan Pink.
I talk about the best salt for fermentation here. In short, use non-iodized salt. - Calculate and make fresh brine for each batch of fermented radishes.
See my recent post on why I say: Don’t reuse the brine—or feel you need to use a starter. - Below the brine.
For worry-free fermentation, it is best to use some sort of weight to hold the radishes below the brine. - No airlock?
Airlocks allow excess gases to escape. If you don’t have an airlock and you want to be super safe, burp the jar once daily during the first 3 days. - Adjust fermentation time based on ambient room temperature and desired product.
Ideal fermentation temperature is 65-70°F (18-21°C).
Adjust the length of fermentation based on the temperature of your kitchen. If it is super hot, shorten; cold, lengthen. - Agitate brine DAILY! Kahm yeast (harmless but can impart a yeasty flavor) can grow on the surface of ferments, usually with vegetables high in sugars. You usually want see it with radishes, but to be on the safe side jostle the jar daily to disturb the surface of the brine.
- Eat the fermented flavoring items.
When using garlic, ginger, hot peppers, etc. to add flavor to your ferment, you are also fermenting those items and they can be eaten as well. - Drink leftover fermented brine, or use it to make salad dressings.
- Keep your fermented radishes handy.
My fermented vegetables greet me front and center when I open the refrigerator and are just begging to be snacked on. You might need to do likewise so they are not forgotten somewhere in the back of your refrigerator.
Frequently Asked Questions
You can ferment various types of radishes: red, daikon, watermelon, etc. Just be sure to cut them into wedges or slices of similar thickness so that they ferment evenly.
They can be elusive. Tilt the jar to the side to see if any are sitting on the surface of the brine. Look for other signs of fermentation: colors fading, sour taste, vinegar-like aroma.
Feel free to taste them along the way. The radishes are ready when bubbles have stopped rising to the surface, there is a slightly sour aroma and they taste tangy.
Ideal fermentation temperature is 65-70°F (18-21°C).
Adjust the length of fermentation based on the temperature of your kitchen. If it is super hot, shorten; cold, lengthen.
Agitate brine DAILY! Kahm yeast (harmless but can impart a yeasty flavor) can grow on the surface of ferments, usually with vegetables high in sugars. You usually want see it with radishes, but to be on the safe side jostle the jar daily to disturb the surface of the brine.
My Five Favorite Fermentation Tools
Fermented Radishes Recipe
EQUIPMENT
- 1 quart jar
- fermentation weight
- airlock
- canning lid and rim
INGREDIENTS
- 2-3 bunches radishes, 400-500g prepared
- 1 tsp sugar, (Balances the bite from the radishes.)
- Iodine-free salt (fine-grain)
- Non-chlorinated water
FLAVORING OPTIONS [Choose from one of the following]
- 1 tsp fennel seeds + 1 tsp anise seeds
- 1-3 garlic cloves, peeled and cut into slivers
- 1 teaspoon dried dill, (1 tablespoon fresh)
- 1 sliced green onion, plus a bit of sliced red onion
INSTRUCTIONS
- PREP FLAVORING ITEM.Prep what you'll be using to flavor your radishes.
- PREP RADISHES.Remove tops and tails. Rinse clean. Then, quarter radishes into wedges or slice no thinner than 1/4 inch. You want chunks, not thin slices which.
- WEIGH JAR.Use a digital scale to obtain the weight—tare—of your jar (471 grams, for example). Write this number down.
- PACK JAR.Add 1 teaspoon of sugar to the jar (cuts the bite from the radishes, optional.)Place what you'll be using to flavor your radishes sticks in the bottom of your jar then snugly pack radishes into the jar leaving one inch of head space.
- TOP WITH WATER. Pour water over radishes letting it percolate down.
- CALCULATE & ADD 2.5% SALT.Weigh your packed jar. The number on the scale is the weight of the jar, plus the weight of the vegetables and the water (1286 grams, for example).Subtract the jar weight from the total weight (1286 – 471 = 815, for example).Multiply the weight of the contents in your jar by 0.025 (851 x. 0.025 = 20.3, for example).Tare a small dish and weigh the correct grams of salt (20 grams, for example).Add this salt to your jar of radishes.
- DISSOLVE SALT.Screw on a standard canning jar lid and rim and tightly secure. Shake the jar for a couple of minutes to dissolve the salt.Remove lid.
- SUBMERGE & SEAL.Add a fermentation weight to keep the vegetables submerged under the brine. Close the jar either with an airlock or with a lid left loose enough to allow CO2 to escape.
- FERMENT.Label with recipe name, date, and salt concentration. Place in a shallow bowl on your kitchen counter, out of direct sunlight to ferment until active bubbling stops, usually, 7-14 days depending upon the temperature of your room. The color from the radishes will turn the brine a beautiful pink, which sadly fades over time. Feel free to taste them along the way. The radishes are ready when bubbles have stopped rising to the surface, there is a slightly sour aroma and they taste tangy.
- STORE.Add the fermentation length to your label and put in the refrigerator. Your fermented radishes may be eaten immediately, but will increase in flavor with time and will keep for up to a year, though they lose color as the months go on.
Notes and Tips
- My favorite salt for fermentation is Himalayan Pink. I talk about the best salt for fermentation here, here. In short, use non-iodized salt.
- Flavoring your radishes. Experiment with different flavorings to find your favorite combination.
- Below the brine. For worry-free fermentation, it is best to use some sort of weight to hold the radishes below the brine.
- No airlock? Airlocks allow excess gases to escape. If you don’t have an airlock, burp the jar once daily during the first 3 days.
- Adjust fermentation time based on ambient room temperature and desired product. The ideal fermentation temperature is 65-70°F (18-21°C) is ideal. If it is super hot, shorten; cold, lengthen.
- Do drink leftover fermented brine, or use it to make salad dressings.
Ways to Eat Fermented Radishes
Enjoy your delicious fermented radishes as a snack or use them as a flavorful topping for salads, tacos, sandwiches, or rice bowls.
Fermented radishes can be enjoyed in many ways! Here are some ideas:
Eat them as a snack. Fermented radishes make a delicious and nutritious snack on their own. Just grab a few slices and enjoy!
Add them to salads. Fermented radishes add a tangy crunch to salads, especially when paired with leafy greens and a flavorful dressing.
Use them as a topping. Fermented radishes make a great topping for tacos, sandwiches, rice bowls, or any dish that could use a pop of flavor.
Mix them into dips. Fermented radishes can be chopped up and mixed into dips like hummus, guacamole, or yogurt dip for a tangy twist.
Blend them into dressings. Pureeing fermented radishes into dressings can add a delicious tangy flavor and creamy texture.
Experiment with different ways of enjoying fermented radishes and find your favorite way to incorporate them into your meals!
Salt Concentration Chart FREE Download
Use the button below to get your own printable Salt Concentration Chart.
Last update on 2026-01-20 / Affiliate links / Images from Amazon Product Advertising API
I recently made these using organic carrots from the Farmers Market and pink Himalayan salt.
They sort of have a bitter, almost alcoholic (like beer I guess?) after taste to them after 7 days. Did I ferment them too long? Or not long enough?
Also, thanks for this website. My family and I have gotten hours of fun and delicious meals from it!
Hello Adam, You had the “deck stacked in your favor” with fresh carrots and HPSalt. My guess is that perhaps you had some Kahm yeast growth. Did you see any white powder on the surface? What were temperatures like in the house during fermentation? Extra warm? What did the carrots taste like, fresh?
I’m glad to hear you’re enjoying the website and making use of the recipes.
Thanks for the reply!
I do recall some white powder growing by the 5th day. I’d say the temp in the house oscilated between 55 and aa high as 80 (rarely) degrees over the week I was letting it ferment (we live in an old house with no insulation in a beach town with no AC or heater. Temp is hit or miss this time of year)
The carrots tasted somewhat bitter and earthy when fresh.
I would say it is Kahm yeast that imparted the beer-like flavor. No harm to eat, just may not be the most pleasant flavor. Wash the jars well before reusing, even letting them get a few hours of sunlight. Kahm yeast appears only periodically, so don’t fear fermenting another batch. And… a bitter flavor in vegetables to start with will not go away. I’m got a first hand experience on how important ingredients are for the finished product when I fermented with some rather old and yellowed cabbage a few weeks ago. Not pleasant!
I was wondering if you could add vinegar to these after they have fermented, just to give them the vinegary tang? I know you can do that with fermented pickles.
Thanks.
Yes, just wait until it is “done” fermenting so that the acids in the vinegar don’t interfere with fermentation.
Seems like a bad idea. Lactic acid will give them a tang of their own.
Hi there I just fermented my first batch of shredded carrots with dried ginger! However, my brine is cloudy and there was a ‘skin’ on top. Is this normal? I scraped off the top layer of carrots and brine. Is that ok? Or do I need to throw away the whole thing.
Cloudy is normal; from the bacteria doing their thing. The white skin on top is most likely Kahm yeast. You did fine to remove it. More here: https://www.makesauerkraut.com/sauerkraut-fermentation-gone-bad-troubleshooting-tips/#Things_Growing_on_My_Sauerkraut
Hi, do you have to use non chlorinated water or is tap water ok, and when you say 2 cups of water what is that equal too,I live in England so cups are different sizes
Thank you
Tap water is fine, though if it has been chlorinated, some leave it to evaporate off overnight. Just do the best you can. I try to put in ml and liter measurements… missed that. 2 cups would be 500 ml.
Thank you for your quick reply, can’t wait to get started
Hi Holly – what’s the reason for adding ‘the fermentation length’ to the label, as I read on the recipe for the carrots?
I soak my vegetables in ozone water to get rid of pesticides I wonder what that hinder the fermentation process?
A good question that I would only guess on the answer. I think it would be fun to do an experiment. One batch using ozone-soaked vegetables, one without and see if there is a difference. Pesticide numbers go down dramatically during the fermentation process. From what little I know about ozone water, I don’t think it will harm the bacteria on the vegetables.
Hi Holly! I’ve been fermenting sauerkraut and other vegetables including kimchi using your recipes for a few years now. I love the taste so much! I was thinking of a pickled vegetable mix my mom used to make that she called “End of the Garden”. Like it sounds it was a mixture of any vegetable she had, carrots, celery, cauliflower cut in chunks. I loved the assortment of veggies. I was wondering if I could use the fermented carrots recipe and a mixture of vegetables like mom did? I think I’d add some garlic cloves too! Is there anything you’d suggest I not include?
Yes. Keep “chunk” sizes similar so they ferment at the same time. Don’t add broccoli. It doesn’t ferment well. Have fun with it. 🙂
I make my own sauerkraut and just use a big mason jar and cheesecloth over the top of the jar and rubberband it down. Would this work for the carrots or do I need the fancy jar and lid??
No need for a fancy jar and lid. However, I would use some type of lid – left on loosely to allow gases to escape – to cut down on amount of oxygen that can enter the jar. Vegetable fermentation is anaerobic, without air.
Holly, do you have any recommendations for salt fermenting scallions, celery stalks and celery leaves? We have a bounty this year in our garden, and I was wondering. I’d like to try each of these separate of course, but do you know if it’s better to ferment the celery stalks and the leaves together? Would you use your standard 2% salt solution (based on total jar contents)?
I haven’t played around much with celery. You could try cross-slicing the stalks and scallions, rough cutting the leaves and adding a 2% brine. I now recommend basing that percentage on both the weight of the ingredients AND the water. I would go heavy on the celery stalks, i.e., making them your base and adding the others for accent. You could try adding some dried herbs, parsley, sage, rosemary and thyme, comes to mind.
Hi Holly, I’m glad to see that you switched to this more foolproof method. All you need keep in mind is the percent salt concentration of the entire jar contents, and some vegetables work better with 2% and some up to around 3% or so.
You recently gave a recipe for cucumber pickles wherein you first made a water/salt solution at – I forget – about 3 or 5%. I tried it, and it led to a white yeast coating, but I think that was my fault for not weighing down the cucumber below the water level. But still, it tasted too salty for me.
I think I’ll also go back to the overall method you describe here, keeping in mind that some veggies require more salt than others.
Thanks again for the suggestions.
Yes… always learning. I’m working on a handout that shows the total salt concentration for different vegetables. Pickles use 3%. I’ve yet to update the pickles post. Hopefully, in the next week or so. Working on the beets post right now. The white yeast coating (Kahm yeast) happens with pickles, especially when fermenting in warmer weather (I ferment mine in an ice chest kept at 65-70F), or with not enough salt (the brine method).
Holly,
Just now I finished my first jar of carrot sticks and it occurred to me that although you indicate 2% salt solution, since when weighing the jar, you suggested to weigh the packed jar AND the water. That weigh is obviously different than just the water. So how does the 2% come into play. In my case, the jar was 427g, the packed jar (carrots, garlic, water) 1261. 1261-427=834, 834×0.02=16.68
In order to get a 2% solution, shouldn’t I weighed the water and multiply THAT with 0.02?
Hope I am not confusing you.
Thank you,
Randy
It should be a 2% total salt concentration. Always refining the wording. You properly crunched the numbers. Add 17 g salt to give both the vegetables and water a 2% salt concentration. I hope I’m not confusing YOU! 🙂
Cool, thank you for this! Quick question. I started my fermented carrots 2 days ago but I am not sure i added enough salt. I just added some now, do you think they are safe?
Just found your site 🙂
Catherine