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Although maple products and their characteristic flavor are today well known, similar products obtainable from birch, walnut, hickory, ash, basswood and butternut trees (Nearing 1950), once produced in quantity, are all but forgotten syrup, butter and taffy can be manufactured from the saps of these trees as well as from maple sap. The winning of maple sap and its processing have been adequately described in the literature (Nearing 1950 Perrin 1972 Anonymous 1973). The Canadian per capita annual consumption of maple sugar fell from 1.1 to 0.09 kg person between 1947 and 1971 (Hassan 1973). Canada
production and properties of birch syrup (betula populifolia)
Kok, R., Norris., E.R. and T. Beveridge 1978. PRODUCTION AND PROPERTIES OF BIRCH SYRUP (Betula populifolia). Canadian Agricultural Engineering 20(1):5-9.
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