Regional, varietal, and type influences on the degree Brix and alcohol relationship of grape musts and wines
AuthorsC. S. Ough
M. A. Amerine
Authors AffiliationsC. S. Ough was Associate Specialist in the Experiment Station, Davis; M. A. Amerine was Professor of Enology and Enologist in the Experiment Station, Davis.
Hilgardia 34(14):585-600. DOI:10.3733/hilg.v34n14p585. September 1963.
The varietal, regional, yearly and type (red and white) effects on the degree Brix-alcohol relationship are discussed. It was determined that the degree Brix measurement by hydrometer is a relatively poor indicator of the expected alcohol due to type, regional, yearly and varietal effects. These effects are shown by regression analyses of a large number of varieties over a 3-year period, and by analyses of data of 18 varieties over a 9-year period. Type-region effects are very significant with the red varieties between the two regions discussed and between the red and white types.
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