Viticulture and Enology Dr. Grant R. Cramer Department of Biochemistry University of Nevada, Reno What are Viticulture and Enology? Viticulture is the Science of Grape-Growing The Cycle of Vine Growth Budbreak Prune Rapid Shoot Growth Dormancy Bloom Berry Set Leaf Fall Full Canopy Berry Softening Harvest Cane Hardening Enology is the science of wine (making) The Process of Making Wine • 1. Crush and press grapes. • 2. Add yeast to must in fermentation vessel, cover for 3 days to several weeks. • 3.Siphon wine off the sediments (lees) into clean secondary fermentation vessel. • 4. Bottle when wine is clear and all fermentation has stopped. White Wine-Making Red Wine-Making Harvest Desteming and Crushing of Grapes Traditional Small Scale Press Pneumatic Press Add yeast to must in fermentation vessel, cover for 3 days to several weeks Siphon wine off the sediments (lees) into clean secondary fermentation vessel Bottle when wine is clear and all fermentation has stopped Wine Analysis