Production
Most birch syrup is produced in Russia, Alaska and Yukon from Paper Birch or Alaska Birch sap (Betula papyrifera var. humilis and neoalaskana). These trees are found primarily in interior and south central Alaska. The Kenai birch (Betula papyrifera var. kenaica), which is also used, grows most abundantly on the Kenai peninsula, but is also found in the south central part of the state and hybridizes with humilis. The southeast Alaska variety is the Western paper birch, (Betula papyrifera var. commutata) and has a lower sugar content. One litre of syrup from these trees requires evaporation of approximately 130–150 litres of sap.
Total production of birch syrup in Alaska is approximately 3,800 liters (1,000 U.S. gallons) per year, with smaller quantities made in other U.S. states and Canada (also from Paper Birch), Russia, Belarus, Ukraine, and Scandinavia (from other species of birch). Because of the higher sap-to-syrup ratio and difficulties in production, birch syrup is more expensive than maple syrup, up to five times the price.
Read more about this topic: Birch Syrup
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