Tannins sources for Crunchy Fermented Pickles
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11 Natural Sources of Tannins for Crunchy Fermented Pickles

You have spent the entire summer growing your garden vegetables. Now, the season has finally arrived to begin fermenting them for all your fall recipes. Fermented vegetables are getting more popular every year due to their health benefits! Some of the most popular ones are sauerkraut, beets, kimchi and naturally preserved probiotic-rich crunchy dill pickles.


Tannin-rich grape leaves give the fermented pickle it amazing crunch.
Tannin-rich grape leaves give the fermented pickle it amazing crunch.


By now, you’ve probably read all the articles about the not-so-secret secret ingredient: tannin-rich grape leaves that give the fermented pickle it amazing crunch.

But what happens when you can’t get your hands-on grape leaves? They can be quite hard to find at a supermarket or even your local farmer’s market.

Luckily, there is an easy-to-find grape leaf alternative: bay leaves. Now you have the most essential ingredient for your Fermented Pickled Recipe. You will need to use 2 – 4 bay leaves per quart to achieve the crunchiness you like. Another great substitute is green or black tea. Add 1 – 2 bags of tea in your Lacto-fermented pickle recipe.


bay leaves have tannins which are key to a crunchy pickle
Bay leaves have tannins which are key to a crunchy pickle.

In fact, there are quite a few tannin alternatives to Grape leaves:

Blackberry leaves

Indian almond leaves

Cherry leaves

Horseradish leaves or Horseradish root – grated or chopped

Raspberry leaves

Mesquite leaves

Black Currant leaves

Sour Cherry leaves

Oak Leaves (Contain the highest amount of tannins)

* Use fresh leaves over dried. As for the tea, a tea bag or loose leaf is fine.


That’s not all, there are a few more steps beyond just adding tannins to a recipe to help your fermented pickles get their crunch. Here are a few more suggestions on how to make crispy crunchy fermented cucumber pickles.


8 Bonus Tips to Keep Your Pickles Crunchy During Fermentation


1. Use a Saltier Brine

The salt in the brine actually prevents harmful bacteria from growing. Then, the healthy lactic bacteria can produce lactic acid to preserve the cucumbers. The healthiest choices are natural sea salt and Himalayan pink sea salt.

We recommend using a salt brine mixture of 4-5% opposed to a 2-3% or lower. This will bring out the taste and crunchiness.

My family prefers a 4% salt brine, it’s not too salty, and it provides a satisfying crunch factor.

*A 4% salt brine converts to 2 tablespoons of salt for every 4 cups of water.

While a 5% salt brine is 2.5 tablespoons of salt for every 4 cups of water. This was a little too salty for my taste, but it could be perfect for you.

By using a higher percentage of salt brine, you will preserve the crispiness of the pickles. Beware though, you don’t want to overdo it because if they are too salty, you might end up throwing them out.


a saltier brine will make a crunchier pickle
A saltier brine will help fermented pickles turn out crunchier.


2. Use Small Whole Cucumbers

Small cucumbers tend to keep their crunch better than larger cucumbers. When buying cucumbers, choose the Persian cucumbers over Kirby’s. Kirby’s are already quite crunchy and better suited for a quick pickling process. They don’t hold up as well through the longer fermentation process. Traditional Kirby cucumbers tend to get mushy on the outside during fermentation.

If you are using larger cucumbers, do not cut them into small pieces because they tend to become soft. It’s best to choose a little cucumber and divide it into large spears. This will ensure the best-tasting pickles for your recipe.


3. Use Fresh Cucumbers

Fresh is best when it comes to fermenting pickles. If you notice your cucumbers are wilting, throw them out. Grocery stores always put the freshest produce in the back and the oldest in the front. Fresh cucumbers have the most amount of nutrients and health benefits, so take the time to find the best ones!

The cucumbers should have no soft spots and should not look wrinkly. If they have either, then they are on the way out. Fresh picked cucumbers from your garden or the farmers’ market work best. I find that using small, Persian cucumbers make the crispiest and crunchiest pickles.


4. Remove the Blossom End

The end of a cucumber contains enzymes that soften pickles. Cut a thin slice from the end, to preserve the firm texture. This will keep the enzyme from softening the cucumber before it’s fermented.


5. Puncture the Skin

Cucumbers that get harvested a bit late in the season or have been on the vine longer will develop a thicker skin. A great way to improve their taste and texture it to simply prick a hole in each cucumber with a knife or skew. This will allow the brine to penetrate faster and the cucumbers will culture better.


6. Chill Cucumbers in an Ice Bath

Chilling cucumbers in an ice bath for four to five hours before starting to process them will help improve the crispiness of the pickle. Use a large, food-safe container and fill it halfway with ice before pouring in water. Replace the ice as needed to keep the cucumbers cool.


7. Ferment at the Coldest Temperature You Can

The ideal temperature for fermenting pickles is between 60-70°. Anything much warmer than that will result in mushy pickles. Stay in this range for best results.
However, if the temperature is over 70 degrees, then shorten the fermentation time. Do a taste test after three days to determine their level of crunch. If they taste great and have the crunch you desire, then they are ready.


8 Pay Attention to the Color

The color of the cucumber is another indication of readiness. When the cucumber changes from bright green to an olive or yellow-green color and the inside is translucent the batch is ready to eat.


Final Word


By now you should be well on your way to being an expert in pickle Lacto-fermentation. If you follow these steps, you will keep your cucumbers from turning mushy while reaping all the benefits.

Once you’re done with fermentation, make sure to store your pickles in a cool, dry place. A refrigerator or root cellar is the best options and will increase its shelf life.

Fermenting is actually a simple process. Once you learn it, you’ll be able to ferment all kinds of vegetables. One secret is you can use your fermented pickle juice to make a delicious salad dressing.

You will be able to include these fermented pickles in recipes your friends and family will love. There are many vegetables you can ferment, but a crispy, crunchy pickle is the tastiest of them all!

If you like this, try my Homemade Sauerkraut recipe and Sweet Kimchi recipe.


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Hello! I’m Katie, mom, hobby fermenter, gardener, canner, and boundless experimenter. Here at Fermenters Kitchen, our team of enthusiast aims to encourage readers to embark on a fermentation journey with us, one bubbly jar at a time.