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Birch beer is a sweetened, effervescent beverage flavored with oil of birch or wintergreen. It can be prepared by carbonating or fermenting. The term "beer" itself refers to a carbonated, fermented alcoholic beverage typically made from malted cereal grains and flavored with hops, usually containing less than 5% alcohol. However, "beer" can also describe a nonalcoholic or slightly alcoholic beverage flavored with plant parts, such as birch beer. Sweet birch trees (Betula lenta) are a source of birch oil and their sap is used to make birch beer.123

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  1. birch beer
  2. beer
  3. sweet birch

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