Birch beer
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Birch Beer is a carbonated soft drink made from herbal extracts, usually from birch bark. It has a taste similar to yet distinct from root beer, sweeter with a slightly minty and sharper flavor. Various types of birch beer are available, disinguished by color. The color depends on the species of birch tree from which the sap is extracted (though enhancements via artifical coloring are not uncommon). Popular colors include brown, red, and white, though others are possible. After the sap is collected, it is distilled to make birch oil. The oil is added to the carbonated drink to give it the distinctive flavor. "Black birch" is the most common source of extract. You can break off a small twig and suck the end of it and taste the unusual flavor.
This drink is most commonly found in the northeast United States, and Newfoundland in Canada.