Sour-Beets
- Nov 2, 2025
- 2 min read
Updated: Mar 15
There are many recipes out there. Soured beets, or specifically kvass/fluid from the jar is used to make traditional Polish Borshch. But many Polish people drink it on its own. It is salty and garlicky and very slightly sweet and a bit sour.
This is a very traditional Polish take on it.

You will need:
3 litre jar
piece of gauze or tea towel and a string
mandoline slicer or knife
fermenting weights optional
Ingredients:
1 kg beets, organic if you can get them
1/2 garlic bulb, cut across
6 bay leaves
8 pimento seeds
10 black pepper seeds
3 teaspoons / 1 tablespoon (around 20-22 mg) coarse salt
4 cups of water, filtered preferred (I have used 6 cups of water yo cover the beets and added extra teaspoon of salt)
Optional: piece of sourdough rye bread or splash of fermenting liquid from previous ferments (i.e. sauerkraut)
Method:
Slice washed beet as thinly as possible (no need to peel unless you feel like it) and place into the jar
Cut unpeeled garlic bulb across if not already done, add to the jar
Add all other ingredients to the jar
Make sure all vegetables are fully submerged. Push them down and use weights if available. Small ceramic plate can be used as weight
Put jar away, best away from other ferments (like Kombucha) to avoid contamination
The beets will be ready in 10-14 days up to 3 weeks if you have not added any bread or fermentation liquid (start tasting after 10 days). Otherwise, they might be ready as soon as in 3-5 days (start tasting after 3 days)



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