Beet Kvass

Beet kvass is a fermented vegetable tonic, made with beets and other veg which are “steeped” in a brine for a few weeks. This recipe includes onion and cabbage for extra veggie goodness. But you can certainly make it with simply beets, salt and water. I’ve played around with adding scallions, ginger, and turmeric.

You can also do a secondary fermentation with the finished kvass, to add more flavor and carbonation. Just be careful– beets contain a lot of sugar, and the bottles can build up pressure (and explode!)

 

Beet Kvass

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Prep Time 15 minutes
Fermentation Time 14 days
Course Beverage
Makes 1 quart

Ingredients

  • 500 g (~1 lb.) beets, any variety
  • 80 g (1 cup/200 ml) cabbage
  • 60 g any variety onion, scallions or leek any variety, 4 scallions, OR 1 medium leek, halved
  • 50 g ginger root, about a 3 inch piece
  • 750 ml (3 cups) filtered water
  • 15 g (2 tsp.) fine sea salt
  • 30 ml (2 Tbsp.) pickle brine, sauerkraut juice or kombucha (optional)

Instructions
 

  • Chop cabbage into 1" (2 cm) pieces and add to a clean quart-sized (or larger) glass jar or other fermentation vessel.
  • Slice onions or split leek lengthwise. Add to jar/vessel.
  • Remove beet tops (greens), then wash and peel beets. If using organic beets, you can leave the skins on for a more "earthy" flavor.
  • Chop beets in to 1/2"/ 1cm cubes or slices. Add beets to jar/vessel (add them LAST if using other ingredients-- they are the heaviest and will weigh down the lighter veggies.)
  • Make brine (it's a 2% brine by weight): In a separate container, add salt to water and stir until salt dissolved.
  • Add sauerkraut or pickle juice to "backslop" and add good bacteria
  • Slowly fill the jar with brine.
  • If using jar, cover with a tea towel and place a rubber band around jar (to keep out flies and dust).
  • If using fermentation airlock device, follow instructions to secure/tighten it.
  • Ferment in a cool dark place (out of direct sunlight) for 14 days.
  • After 14 days, strain juice into another container. You can also use the beets for another purpose such as vegetable stock or a second run (see below).
  • Strain liquid into a glass bottle that has a tight-fitting lid (swing-top bottle or recycled mineral water bottle with a metal cap). Store in refrigerator, or start a secondary fermentation to mix additional flavors and create carbonation.

Secondary Fermentation (Optional)

  • Add other sweet flavors like fresh fruit juice to balance the salty and sour kvass notes. Use 60 ml (1/4 cup) of fresh juice per quart/liter of kvass.
  • Tighten cap and ferment at room temperature 1-3 days.
  • "Burp" the bottle daily to ensure that pressure will not build up to dangerous levels.
  • Transfer to refrigerator when you like the taste and carbonation levels.

Second Run with Beets (Optional)

  • You can use the same veggies for a second "run" of kvass. Mix more brine and pour it over the veggies, and ferment again for the same time, or even longer (2-3 weeks). It won't be as strong as the first run, but will still be delicious.
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2 thoughts on “Beet Kvass

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