Most definitely and care should be taken when ingesting vinegar. Vinegar is highly acidic, with a pH usually between 2 and 3. Prolonged, direct contact with your teeth can soften and “etch” your tooth enamel over time, leading to sensitivity and yellowing. Never drink vinegar straight and dilute vinegar with at least 8 oz. of water per tablespoon of vinegar. You could also use a straw to bypass the teeth, but regardless of how you enjoy it, always rinse your mouth with plain water to neutralize the acid. It’s actually wise to rinse after enjoying any vinegar concoction. Shrubs and oxymels also contain sugar with feeds bacteria in the mouth and high-quality traditional Balsamic vinegar, which some enjoy sipping as an aperitif, actually clings to the teeth more than other vinegars.