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Birch beer in its most common form is a carbonated soft drink made from herbal extracts, usually from birch bark, although in the colonial era birch beer was made with herbal extracts of oak bark. It has a taste similar to root beer. There are dozens of brands of birch beer available.〔(Anthony's Root Beer Barrel - Birch Beer reviews )〕 Various types of birch beer made from birch sap are available as well, distinguished by color. The color depends on the species of birch tree from which the sap is extracted (though enhancements via artificial coloring are common presently). Popular colors include brown, red, blue and clear (often called white birch beer), though others are possible. This drink is most commonly found in the Northeastern United States, and Newfoundland in Canada. 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, reminiscent of teaberry. Black birch is the most common source of extract. In the dairy country of southeastern and central Pennsylvania, an ice cream soda made with vanilla ice cream and birch beer is called a Birch Beer Float, while chocolate ice cream and birch beer makes a Black Cow. Alcoholic birch beer, in which the birch sap is fermented rather than reduced to an oil, has been known from at least the seventeenth century. The following recipe is from 1676: == Commercial brands == * A-Treat * Adirondack * Boylan Bottling Company * Crush * Fanta * Foxon Park * Frostop * Hank's Birch Beer * Hosmer Mountain Soda * Izze * Mercury Brewing Company〔http://www.ipswichalebrewery.com/products/soda_pop〕 * Pennsylvania Dutch Birch Beer * Polar Beverages * Shurfine (white and dark varieties; store brand) * Sioux City * Stewart's Fountain Classics * White Rock Beverages 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Birch beer」の詳細全文を読む スポンサード リンク
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