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Beetroot kvass

A ruby, almost earthy drink, sipped in small mouthfuls. Eastern Europe made it its table-side potion.

Beetroot kvass is a traditional lacto-fermented drink of Eastern Europe and Russia. More accessible than its black-bread cousin, it is simply made with raw beetroot, water and salt. At the end of the fermentation, you get a deep red juice, slightly sour and fizzy, rich in antioxidant pigments (betanin).

Ingredients

  • Raw red beetroot

    organic if possible, skin scrubbed with a brush, not peeled

    2 medium beetroots (approx. 500 g)
  • Spring or filtered water

    unchlorinated, imperatively

    1.5 L
  • Unrefined sea salt
    30 g (3 level tbsp)
  • Garlic (optional)

    adds a warm note and slightly speeds the fermentation

    1 crushed clove
  • Caraway or cumin seeds (optional)

    Polish tradition

    1 tsp

Equipment

  • •1 glass jar of 2 L with a mechanical seal or a wide jar with a lid
  • •1 fermentation weight or a clean plate to keep the pieces submerged

Steps

  1. 1

    Prepare the beetroots

    Scrub the beetroots carefully under cold water. Do not peel them, the lactic bacteria live on the skin and the fermentation needs them. Cut them into large 2-3 cm cubes (do not grate: the fermentation would be too fast and give an alcoholic taste).

    10 min

  2. 2

    Prepare the brine

    Dissolve the salt in cold water, stirring. The brine should taste clearly salty, it is this concentration that selects the good bacteria.

    3 min

  3. 3

    Assemble the jar

    Place the beetroot cubes in the jar. Add the crushed garlic and the seeds if using. Pour in the brine to 2 cm below the rim. Place a weight to keep the beetroots submerged under the liquid. Close.

    5 min

  4. 4

    Ferment at room temperature

    Leave at room temperature (18-22 °C), away from direct light, on a plate (intense red juice may overflow, beware of white tablecloths). You will see the brine take on a deep red colour from the 2nd day, then bubbles appear. After 5 to 7 days, the liquid is slightly sour, fizzy: it's ready.

    5 to 7 days

  5. 5

    Strain and store

    Strain into a clean bottle. Place cool, the fermentation continues very slowly. You can put the beetroot pieces back into a second batch of brine (the 2nd kvass will be less powerful but still excellent), or eat them in a salad.

Storage

3 to 4 weeks in the fridge, in a closed bottle.

How to use it

A small glass (50-100 ml) in the morning on an empty stomach or before meals, in a 3-week course. An earthy, sour taste, to introduce gradually if you're not used to it.

Health properties

  • Living lactic ferments
  • Betanin and betalains (red pigments of the beetroot)
  • Natural nitrates of the beetroot (dietary form), studied for their effects on blood pressure and physical performance
  • Folic acid, iron, potassium, magnesium

These preparations belong to cooking and herbal tradition: they nourish and support, do not “cure” anything and replace no treatment. Ask a doctor or pharmacist before prolonged use, if under treatment, pregnant or breastfeeding, or for a child. Follow the stated storage precautions strictly.

Precautions

People with high blood pressure on treatment: beetroot may potentiate the hypotensive effect, monitor. Oxalate stones: beetroot is rich in oxalates, to avoid in a prolonged course. A white film (kahm yeast) on the surface = harmless but to remove; coloured mould = discard. Urine and stools may take on a pink tinge during the course, that's normal (beeturia), harmless.

Sources & tradition

  • · Ukrainian tradition (буряковий квас, buryakovyj kvas) and Polish (kwas buraczany / ćwikła)
  • · Sandor Katz, The Art of Fermentation (2012)
  • · Sally Fallon Morell, Nourishing Traditions (1999)

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