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.
1 Wrap the foil around the beets, sealing it as if it were a package. Place the foil package on top of a rimmed sheet pan to protect your oven in the even the foil package leaks.  Roast in the oven for 30 to 60 minutes, depending upon the size and age of the beets. Test with a knife for doneness.