Beresta is a material from the upper layer of the birch bark. Since ancient times they valued the useful properties of birch bark in Russia. Charged with sunlight, this material retains heat even in the cold, has positive energy. In the people it is believed that products made of birch bark bring calm, relieve pain and increase immunity. Due to the tar contained in the birch bark, it is an excellent antiseptic. Therefore, products in birch bark products for a long time do not spoil, retaining all their useful properties. In the house where there are objects from the birch bark, the air is cleaned. Briefly about the history of birch bark products, the technology of their manufacture and other useful properties you can read in the article devoted to Beresta.
Wood, bark, cardboard