Red Wine Vinegar, often known as just vinegar, is a condiment available at SUBWAY restaurants. It adds a distinctive sour taste to a sandwich.
Red Wine Vinegar is often ordered in conjuction with olive oil. Both are kept in sauce bottles filled from jugs; they must be kept in two individual bottles. They may not be mixed. Red wine vinegar is also available in single serve packets.
Vinegar does not require refrigeration.