Oregon fir balsam, is a natural oleoresin of the turpentine type. It occurs as a physiological product inside the trunk of Pseudotsuga Taxifolia, the Douglas fir or Western fir from the mountains of the western United States along the Pacific coast, from California to British Columbia in Canada.
The balsam is collected from felled trees by placing a drum under the end pieces of the trunks. Or, the balsam which flows from natural wounds is collected by inserting a tube in the wound. The balsam is subsequently strained.
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