So simple, so delicious, so healthy!
(I have only made this for home use as it doesn’t have a long shelf life)
Fill a jar 1/3 full with 1cm cubes of beetroot (peeled or unpeeled depending on your inclination), add a bit of ginger, cover with water, and sprinkle in a pinch of salt. Seal with a lid and let it sit at room temperature for about 5 days until the water turns deep red. Strain out the beets, chill the juice, and enjoy. A little bit of this every day will surely keep the doctor away. It will keep for a couple of weeks in the fridge.
Here is another recipe for beetroot.