
Deep ruby and alive with earthy tang, this fermented beet tonic is one of those drinks that looks dramatic but comes together with almost no effort. Raw beets, sea salt, a splash of apple cider vinegar, and fresh ginger are all it takes to kick off a gentle, room-temperature ferment that transforms plain filtered water into something genuinely complex. For anyone navigating a citric acid sensitivity, store-bought fermented drinks and tonics can be a minefield — many are preserved or flavored with citric acid that doesn't always make it onto the front label. This recipe sidesteps all of that by relying entirely on natural lacto-fermentation and the mild acidity of apple cider vinegar, with zero hidden additives. The ginger adds a subtle warmth, and the optional thyme brings a faintly herbal note that makes the finished tonic feel almost medicinal in the best possible way. After two to three days on the counter, you strain it, chill it, and sip it in small glasses — it's tart, a little funky, and surprisingly satisfying. It keeps in the fridge for up to a week, so you can make a batch and come back to it whenever you need a gut-friendly, clean-ingredient pick-me-up.
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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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