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.
Wash and sort according to size. Trim tops, leaving 1/2 inch of stems and tap root, to prevent bleeding of color during cooking. Cook in boiling water until tender-for small beets 25 to 30 minutes; for medium beets 45 to 50 minutes. Cool promptly in cold water. Peel, remove stem and tap root, and cut into slices or cubes. Package, leaving Â½-inch headspace. Seal and freeze.