Add Yahoo as a preferred source to see more of our stories on Google. Birch sap collecting is going high-tech in Latvia An app called E-birch alerts users when internet-connected containers are full ...

“When Latvians drink birch sap, it’s a sign of spring coming,” says Ervins Labanovskis. It’s been consumed here for centuries; folk songs reference the birch tree’s alleged magical and medicinal ...

Tree sap is the sticky substance you sometimes see oozing out of tree trunks. Pure maple syrup is the most widely known edible sap product, derived from the sap of the maple tree, but there are many ...