wine

Wine vinegar

Q: I would like to ask you about the Brandywine vinegar as I am studying in Germany and almost every other has this Branntweinessig and they use it as a cheap preservative for yogurt, ketchup, mayonnaise, even some milk drinks also have this. So is it permissible to use this or not as due to language barriers I could only rely on translation which literally means wine vinegar.