1 Shielding to protect workers by using trench boxes or other types of supports to prevent soil cave-ins. 2  Always provide a way to exit a trench--such as a ladder, stairway or ramp--no more than 25 feet of lateral travel for employees in the trench. 3  Keep spoils at least two feet back from the edge of a trench.
Instructions. 1  Whisk starter culture and sea salt into 1Â½ quarts filtered water until well-dissolved. 2  Place beets into a 1-gallon vegetable fermenter or fermentation crock. 3  Allow the kvass to ferment at room temperature for at least one week before straining and serving.
Place in a saucepan covered with salted water to taste (with at least 1 tsp of vinegar). Boil until tender [usually, 30-45 minutes, depending on the size of the beets]. Boiling can take up to 60 minutes for larger beets. Drain and run cold water over beets. The skins will slip right off with the root ends, but make sure you wear kitchen gloves so your hands don't turn red.