In a big pot heat the olive oil, add cut onions, parsnips, carrots and celery, fry on a medium heat for 2-3 minutes.
Add the potato and beetroot cubes, fry for 1 minute longer.
Add the spices, seasoning, water and cook for 10 minutes.
Add the fermented beetroot and cook for 15 minutes (if you prefer your vegetables softer, add the fermented beetroot with the spices and cook everything for approx. 25 minutes).
Add the beans and kvass and cook for 10 minutes.
Pour the milk in, check the seasoning and serve.