No! Vinegar has a pH level of 2.4-3.2, while many kombuchas are much higher, ranging from 3.5 to 4.0 pH levels on average. Apple cider vinegar is diluted acetic acid, making its pH low enough to be safe for your teeth.  Conversely, most kombucha teas have a very high pH level because it's the result of brewing the tea itself with yeast and sugar over extended periods...