Birch syrup explored as add-on to maple industry

In this Wednesday, March 28, 2013 photo, David Moore of the Crooked Chimney sugarhouse poses in front of one of his tapped white birch trees, in Lee, N.H. Moore, New Hampshire's only known commercial birch syrup producer, got his start in 2008, when he was a student at the University of New Hampshire.

http://www.sfgate.com/news/article/Birch-syrup-explored-as-add-on-to-maple-industry-4398199.php