In the many years of developing the production technology of birch sap, Susanna and Arto Maaranen have gathered a great deal of information on birch and birch sap and how to collect it, and they have received a lot of feedback on the believed health benefits of birch sap.
Based on these experiences they have written a book called "Birch sap - a toast to nature and health" ("Koivun-mahla - malja luonnolle ja terveydelle"), published in April 2003. The book is a basic information package about birch, birch sap and collecting it for use at home. Ask for more information about the book in bookstores. The stores can order the book from the publisher.
The publisher's contact information:
ART HOUSE OY
Bulevardi 19 C, 00120 Helsinki
puh. 0800-12500, Fax (09) 693 3762