We all desire our refrigerated food to be for sure to eat. It is why we go v the fridge on a regular basis and follow the rule, “When in doubt, toss it out.” yet unlike most foods we save in the fridge, ours keolistravelservices.com probiotic fermented foodstuffs come ready-colonized by health-giving bacteria. So, what’s the story v these foods? just how long go sauerkraut or kimchi last, as soon as the jar is opened?

How lengthy Does Sauerkraut Last?

Here’s some good news: sauerkraut and also kimchi have the right to last in the refrigerator for a month or two previous the expiration day that’s printed on the package—If you know what’s walking on and also what keeps these foodstuffs safe and also tasty.

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Your keolistravelservices.com sauerkraut or kimchi is fermented rather than salt cured. That means the vegetable were retained submerged in a weak brine equipment of in between 2 to 5 percent salt, depending upon which vegetables to be fermented. In ~ first, the vegetables carried into the fermentation vessel any type of microorganisms that were on their surfaces, including spoilage organisms and beneficial Lactobacillus acidophilus and other acid-loving bacteria (often described as LAB—lactic acid bacteria).

During fermentation, the LABs walk to work on the sugars and also carbohydrates in the vegetables, turning them into lactic acid. As the weak brine became an ext and more acidic, the spoilage organisms were eliminated off. The vegetables developed the lip-smacking sour spices that do ferments therefore delicious. ~ all, words “sauerkraut” is German because that “sour herb.” by the end of the initial fermentation, the LABs rendered the vegetable tastier, much more nutritious, perfectly safe to eat, and probiotic, definition the bacteria the fermented the vegetables could now take it up residence in her digestive system and also continue to carry out health benefits and also improved nutrition as they participate in your gut microbiome.

Incidentally, salt curing is done with a more powerful brine—from 10 to 20 percent salt or more. That amount that salt will maintain the vegetables, yet is as well salty to permit the LABs come grow, therefore salt-cured foodstuffs are not fermented.

So, those this median for ours question: exactly how long go sauerkraut or kimchi last once the jug is opened? and the answer is a couple of month or even more if three needs are met.


First, the vegetables should remain submerged a 1/2 inch or so in ~ the brine in the jar. If they float come the top and are exposed to air, they will certainly eventually come to be moldy and inedible and the jar will certainly be spoiled. If there’s not sufficient brine in the jar come cover the vegetables, include a little filtered water, enough to fill to over the vegetables. To keep the vegetables submerged, weigh them down through a little plate, cup, or freezer baggy filled v weak brine.

Second, the sauerkraut and also kimchi should be retained refrigerated at every times. If you want to offer some with a meal, move the meal’s precious to a cup or bowl and also put the seasoned of kraut or kimchi ago in the fridge without letting that sit out and warm up.

Third, only use a clean utensil to take it the fermented vegetables native the jar. Nothing eat native the seasoned by reinserting the utensil in the food. If you dual dip, you will do it be seeding the food v a wide range of mouth and also other bacteria, and it will at some point spoil.

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Over the time in the fridge, sauerkraut and also kimchi will become more acidic together the LABs proliferate, the crunchiness the a new jar’s vegetables might abate and also become softer over time. However as lengthy as you store the vegetables submerged and also enjoy the flavors, you’re an excellent to go.

About the Author: Sonoma county resident Jeff Cox is the author of 24 books, consisting of The Essential book of Fermentation (Avery, 2013)