Fermented Jalapeno Pepper Recipe (2025)

Fermented jalapeno peppers are a spicy, delicious treat loaded with gut-loving bacteria. Keep reading to learn how to make fermented jalapenos with this easy fermented jalapeno pepper recipe.

So over the past year, I’ve become a little obsessed with fermenting vegetables. Last week I shared how to make fermented carrots and today I wanted to share with you an easy fermented jalapeno pepper recipe.

I’ve tried fermenting many different types of vegetables and some turn out great and some not so great. But like carrots, jalapeno peppers are really easy to ferment and taste delicious.

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I love fermenting vegetables because it is a great way to preserve the food that I grow in my garden. Even though fermented vegetables don’t last as long as canning or pickling, I prefer it because of the added health benefits.

Fermented foods are loaded with probiotics that can help to increase the beneficial bacteria in your gut. And there are many, many benefits to a healthy gut – better digestion, less bloating, decreased inflammation in the body, and so much more.

I am by no means an expert when it comes to gut health. So if you want to learn more about the benefits of fermented foods I highly recommend that you read this article.

Making fermented vegetables is a fairly simple process and once you get the hang of fermenting one thing, you’ll find it easier to ferment other types of vegetables.

You’ll need to start with a clean, chemical & bacteria-free environment. So that means clean jars, clean toxin-free water, and preferably organic vegetables and seasonings.

You don’t want the chemicals on non-organic food or in tap water to interfere with the lacto-fermentation process.

Next, you want to create a brine that has the correct salt to water ratio which you will use to fully submerge your veggies. The saltwater brine is what prevents bad bacteria from growing.

It’s super important the veggies do not come in contact with air. They need to remain under the brine during the fermentation process. Otherwise, mold may form and the ferment will be ruined.

Then you allow your vegetables to ferment on your countertop. The time it takes for the fermentation process to occur varies. It’s dependent upon the type of veggie you are fermenting as well as the room temperature.

Food ferments faster in warmer environments and slower in cooler environments.

How To Make Fermented Jalapeno Peppers

You’ll need the following items and ingredients to make this fermented jalapeno pepper recipe.

Water – Always use reverse osmosis or filtered water. The amount you need will depend on how much fermented jalapeno peppers you want to make. If you want to make one quart, then you’ll need one quart of water. If you want to make two quarts, then you’ll need two quarts of water. You get the idea.

Salt – Salt is what keeps the bad bacteria from forming. You’ll need to use sea salt or pink Himalayan salt. Never use table salt!

The amount of salt depends on how much fermented carrots you plan on making. The typical saltwater brine ratio for jalapeno peppers is two tablespoons of salt for every one quart of water.

So if you want to make 1 quart use 2 tablespoons of salt. If you want to make 2 quarts use 4 tablespoons.

Jalapeno Peppers – Try to use organic jalapenos whenever possible. Like I mentioned above, the pesticides on non-organic jalapenos can inhibit the lacto-fermentation process.

If you don’t have a store near you that sells organic jalapeno peppers you should check outGrubMarket. They will deliver fresh, organic produce right to your doorstep. And their prices are amazing!

I buy organic jalapenos from them often.

Seasonings – Seasonings are completely optional. I rarely add any other ingredients to my jalapeno peppers. Although, from time to time I’ll add some minced garlic. If you decide to use seasonings just make sure they are organic.

How much seasoning you use will depend on how much fermented jalapeno peppers you plan to make and your taste preference. When adding seasonings to my ferments I usually add 1-2 teaspoons of each seasoning per quart jar.

Jars – When making fermented vegetables I almost always use glass mason jars. Usually the quart jars. But sometimes I use pint jars.

When it comes to making fermented foods so much is based on personal preference!

So use whatever you already have on hand. But I do highly recommend the quart wide-mouth jars because fermentation weights fit perfectly with them.

Fermentation Weights – When I first started making fermented veggies I never used fermentation weights. I would get creative and find different items around my home that I could stick in a Ziploc bag and set on top of my veggies to keep them submerged under the brine.

But after a few instances of my homemade weights failing and allowing veggies to rise to the surface, I decided to invest in some glass fermentation weights. And let me tell you, I wish I would have done it a lot sooner!

They fit perfectly into wide-mouth quart jars and fully submerge the veggies. They are amazing. So although they are not necessary I definitely recommend them!

Lids – You’ll need a lid to cover your jar so that no bugs or other foreign objects contaminate your fermented carrots. They sellfermentation lidsand I actually own a few but have never used them. Thesewhite mason jars lidswork just fine.

You can also usemetal mason jar lids. I just prefer not to because they rust quickly.

Fermented Jalapeno Pepper Recipe

So once you’ve gathered all the necessary ingredients and materials you’ll want to start by making a saltwater brine. Like I mentioned earlier, the amount of saltwater brine you should make will depend on how much fermented peppers you want to make.

For every quart you plan to make you’ll need 2 tablespoons of salt. Remember, the saltwater brine ratio is 2 tablespoons of salt for every quart of water.

Heat the water on the stove. Dissolve the salt into the water and let cool to room temperature.

While your brine is cooling, wash your peppers.

Next, slice up your peppers. 2 cups of sliced jalapenos will usually be enough for a quart jar.

If you don’t want the peppers to be super spicy you can remove the seeds. I like them super spicy so I don’t bother removing them.

Fill your jar with the jalapenos. If you want to add seasonings go ahead and add them to the jar now as well.

Once the salt has fully dissolved and the brine has completely cooled to room temperature, pour the brine into the jar. Leave about an inch of space between the brine and the top of the jar.

Never add hot saltwater brine to the jar. Make sure it has at least cooled down to room temperature.

Place your fermentation weight into the jar and make sure the peppers are fully submerged. Then, place your lid on top of the jar.

Leave on your counter for at least 3 days. My jalapeno peppers are usually ready to go into the fridge in about 5-6 days. But it could take anywhere between 3-14 days. It all depends on the temperature of your home.

You’ll know the fermentation process is working when the water begins to get a little cloudy and you may also notice tiny bubbles rising to the surface of the jar.

Remove the lid every few days to let the gasses escape from the jar and then place the lid back on the jar. If you notice any mold growing throw it out and start again.

But if you have followed the directions above there shouldn’t be any mold. A white scum might form on the top of the water which is totally normal. This is just the bacteria and yeast working together. Don’t worry about that.

The best way to tell if your ferment is ready is a taste test. On the third or fourth day taste one of the jalapenos. If you like the flavor and texture then it’s ready. If it’s too salty it’s not ready. Leave on the counter a little longer and keep checking each day until they’re ready.

When you’re happy with the flavor and texture of the fermented peppers remove the weight, attach the lid tightly, and store it in the fridge. Fermented jalapenos should stay good for 6 months when refrigerated.

Keep in mind, the jalapenos will continue to ferment in the refrigerator. Just at a much slower rate. In my opinion, the flavor continues to get better after a few days/weeks of being store in the fridge.

So I hope you enjoy these delicious jalapeno peppers. We like to add them to different things like nachos and enchiladas. And we also like to eat them straight out of the jar!

If you have any questions let me know below!

Fermented Jalapeno Pepper Recipe (2025)

FAQs

How long should you ferment jalapeno peppers? ›

Place weight on top to submerge the jalapeño peppers in the brine, Make sure all of the peppers are completely submerged. Place a fermenting lid on top and leave at room temperature for at least 5 days.

What is the difference between fermented and pickled jalapeños? ›

Both fermenting and vinegar pickling jalapeños preserve the chiles with acid, however, fermentation often gives the chiles a more complex flavor. Further, fermentation preserves many key nutrients lost to the heat processing required in most vinegar pickling.

What do fermented jalapenos taste like? ›

Flavor Runs Deep in these Fermented Peppers

The process of fermentation intensifies and concentrates the heat and spicy flavor of the raw jalapeño, making it sizzle and leap onto the palate. In addition, the rich beneficial bacteria preserve the food while enlivening your own microbiome.

Does pickled jalapeños have probiotics? ›

Pickled vegetables or fruits that have been fermented do contain some probiotic bacteria, including pickled jalapeños that have been naturally fermented. Today, most pickles are not fermented since vinegar and spices can be used to pickle foods and they can be enjoyed right away.

How do I know when my fermented peppers are done? ›

We have the answers.
  1. Always follow a recipe. ...
  2. Allow your ferment to go for 7 days untouched. ...
  3. Taste your ferment on day 7 with a clean fork. ...
  4. Finished ferments should have a pH reading of 4.5 or lower.

What percentage of salt is needed for fermented jalapenos? ›

The Right Salt-to-Water Ratio

Filtered water or spring water is preferred over tap water because the chlorine in tap water could affect fermentation. I recommend using a 3.5% salt solution.

Are fermented jalapenos healthy? ›

A great way to preserve a batch of fresh jalapeños is by fermenting them, these fermented jalapenos are also a really good source of probiotics.

Which is healthier pickled or fermented? ›

The main difference in the health benefits between pickled and fermented foods lies in their probiotic properties. Fermentation generates more beneficial bacteria in foods, making them probiotic. Pickled foods, on the other hand, are naturally processed by the vinegar, making them easier to digest.

Are fresh jalapeños hotter than pickled jalapeños? ›

If so, Pete and I share a fondness for this spicy, vinegary pantry staple. Compared with fresh peppers, pickled jalapeños have a tamer, more uniform heat that I find to be more consistent from jar to jar, whereas the spiciness of fresh jalapeños can vary.

Why are my fermented peppers bitter? ›

Peppers with significant white pith can also make a sauce taste bitter. To remove this bitterness, it can be helpful to remove the seeds and pith before fermenting. Otherwise, it might be necessary to strain the sauce later on to remove some of the seedy grit.

Do peppers get hotter when fermented? ›

Add to Salsas, Soups, and Stews – Fermented peppers can be chopped and added to salsas, soups, and stews for an extra burst of flavor. The fermentation process enhances the natural sweetness of the peppers while balancing out their heat.

Do jalapeños get hotter or sweeter when they turn red? ›

Left on the plant (and even after picked) green jalapeños will eventually turn red. So red jalapeños are older than green jalapeños. The red ones can be pretty hot, especially if they have a lot of striations, but they are also sweeter than the green.

Are jalapeños good for gut bacteria? ›

Jalapeños and other spicy chilis contain compounds that can prevent the growth of harmful bacteria and yeasts that cause infectious diseases.

Can I eat pickled jalapeños every day? ›

Eating just one pickled jalapeno every day can benefit people with chronic pain, such as those suffering from arthritis, joint pain, and lower-back pain. This is because the capsaicin found in pickled jalapenos acts as a natural pain reliever.

Are jalapeños good for your stomach? ›

Yes, jalapeños can benefit gut health. They contain dietary fiber, which supports digestion and bowel regularity. Capsaicin may also have antimicrobial properties that could help maintain a healthy gut microbiome.

How long is too long to ferment peppers? ›

Culture at room temperature until the color of the peppers changes and dulls, usually 5-7 days. If you like, this ferment continue to ferment at room temperature for many months. We like it best after at least 3 months; the flavors become more complex and rich, the longer it ferments.

How long should pickled jalapeños sit before eating? ›

Pour the liquid into the jar so that it completely covers the jalapeños. Let cool on the counter for about 15 minutes, then screw on the jar lid and refrigerate for 24 hours. Enjoy with nachos, on pizza, in sandwiches, and more! Pickled jalapeños will keep refrigerated for about 2 weeks.

How often should I burp my fermenting peppers? ›

If you're not using an airlock, don't forget to burp the container daily. This is super-satisfying and releases CO2 gas that would make the jar explode if left unchecked. After a few days when the fermentation really gets intense, this gas release will start to look and sound like soda.

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