$3.99 Flat Rate Shipping* Click here for details

A Basic Formula for Fermenting Vegetables

 

There is no hard and fast rule for how long to culture vegetables; there are many factors to consider when deciding to move vegetables to cold storage. Time, temperature and ingredients all have a significant impact on culturing. Add salt, and a starter if desired, then it’s time to wait. But first, decisions about temperature and time need to be considered.

How Temperature Affects Vegetable Fermentation

As with most culturing, lacto-fermentation happens faster at warmer temperatures. In our fast-paced society, it may seem desirable to speed things along in order to enjoy ferments sooner, but this assumption isn’t necessarily true.

Culturing is a complex process. A variety of microbes are involved, and they all prefer different temperatures. Experts generally recommend a slow, cool ferment at temperatures as low as 50°F (10°C). At temperatures this low, the process can take as long as 6 months or more, which is longer than many people want to wait.

Fermentation that occurs at 60-70°F (15-20°C) is slow enough to develop many of the complex flavors and retain texture, while moving fast enough to enjoy the ferments within 2-6 weeks. A cooler, slower  fermentation seems to last longer in cold storage as well.

When temperatures exceed 70°F (20°C), fermentation happens quickly. The bacteria that feed on pectin are more active, causing vegetables to break down into softer textures. The flavor is sharper, rather than tangy. Water evaporates faster, so be sure to monitor the level of brine in the vessel. When moved to cold storage, the ferments may not last as long.

How Time Affects Vegetable Fermentation

As the vegetables begin to ferment, the bacteria feed on sugars in the produce. The breakdown of the sugars changes the flavor from sweet to tangy and tart. The process doesn’t seem to be linear. For instance, garlic starts with its usual bite to becoming intensely hot after a week or two of fermentation. Then it begins to mellow and becomes creamy and almost sweet. Cabbage develops a tart flavor and a sharp crunch. A long-fermented kraut becomes quite mellow and begins to soften.

The only way to really know when a ferment is ready is to taste it. While there is much debate on appropriate fermentation times, the best time to move a ferment to cold storage is when it tastes pleasant to the people who will be consuming. After all, what good is a ferment that no one will eat!

Understanding the factors that influence fermentation will make it easy to decide how to transform foods into delicious, probiotic-rich ferments

Ready to Start Fermenting Vegetables?

Recipes can be found on our websiteour free Lacto-fermentation eBook, and in other books on fermentation.

                                                
 SJB  
Ceramic crock full of sauerkraut


Related Articles

 

Related Products:

Fermented Vegetable Master Fermenting Crocks
Cabbage Crusher Cabbage Crusher
Lacto-fermentation Through the Seasons Lacto-fermentation Through the Seasons

Free eBook Library Access & Weekly Newsletter


Sign up today for free access to our entire library of easy to follow eBooks on creating cultured foods at home, including Lacto-Fermentation, Kombucha, Kefir, Yogurt, Sourdough, and Cheesemaking.
  • Library of eBooks for making your own cultured foods
  • Weekly newsletter filled with tips & tricks
  • Expert advice articles, recipes, and how-to videos
  • Join 180,000+ other health-conscious readers
  • We never share your information!
first name last name email address

Updating your cart...

  
Get started today--Save 15%
X
Caldwell Starter Culture for Fresh Vegetables
$21.99
Fermented Vegetable Master: Half-Gallon
$24.99
Perfect Pickler
$19.99
Small Ceramic Fermentation Weight
$5.49
Celtic Sea Salt
$14.95
Add to Cart