For me, as for many Russians, birch sap is a memory from my childhood. My family and I gathered on the spring weekend, did a barbecue and our parents or grandparents collected birch sap.
But now, when I saw holes and cuts in the trees, I was upset.
It's strange, in the 21st century, poking a knife into a tree to drink juice.
I studied several articles on the Internet. It really hurts a tree, especially if it is young.
In addition, as it turned out, the juice can be collected from the stumps of felled trees. But people in my country continue to cut trees.