
Deep ruby and alive with earthy tang, this fermented beet tonic is one of those ancient remedies that earns its place in a modern kitchen. Raw beets, sea salt, apple cider vinegar, and fresh ginger come together in a simple jar ferment that practically makes itself over two to three days on your countertop. Because the whole process relies on natural lacto-fermentation rather than any packaged starter or thickener, there is nothing here to worry about on the additive front — just whole ingredients doing their thing. The ginger adds a gentle warmth that plays beautifully against the beets' natural sweetness, and the optional thyme sprigs give the finished liquid a faintly herbal note that feels almost sophisticated. Watching the water deepen into that jewel-toned crimson over a couple of days is genuinely satisfying, and the payoff — a cold, pleasantly tart sip served in small glasses — is worth every hour of patience. It keeps in the fridge for up to a week, so you can come back to it as a morning tonic or a digestive sipper after dinner.
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Place the cubed beets into a clean 1-quart wide-mouth glass jar. Add the sea salt, apple cider vinegar, and grated ginger. Tuck in the thyme sprigs, if using.
Pour the filtered water over the beets, leaving at least 1 inch of headspace at the top of the jar. The beets should be fully submerged; press them down gently if any float above the waterline.
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