Wine Chemistry Workshop - Dobson, NC

Wine Chemistry Workshop - Dobson, NC

Presenter - Dr. Barry Gump is the first holder of the Harvey R. Chaplin Eminent Scholar’s Chair in Beverage Management at Florida International University’s Chaplin School of Hospitality and Tourism Management. In this position he is developing new graduate and undergraduate beverage classes to expand the offerings of the Beverage Management curriculum. Dr. Gump is Emeritus Professor of Chemistry and Emeritus Adjunct Professor of Enology at California State University, Fresno. He has had a long association (over thirty years) with the wine industry, conducting research in analytical methodology applied to grapes, juices, and wines.

VESTA is working with Surry Community College and the Southeastern United Grape and Wine Symposium to provide this workshop.


8:00 – 8:15: Welcome and Overview of Chemistry Lab
8:15 – 11:15: Chemistry Session 1

  • Malolactic Fermentation: Monitoring by Paper Chromotography
  • Soluble Solids: Determination by Refractometry
  • Soluble Solids: Sugar per Berry by Refractometry

11:15 – 12:15: Lunch (provided)
12:15 – 2:00: Chemistry Session 2

  • Hydrogen Ion Concentration: pH Meter Measurement
  • Titratable Acidity: Titrametric Procedure & Nitrogen: Estimate of YAN by Formal Titration
  • Sugars: Reducing Sugars by Visual Rapid Estimation

2:00 – 2:15: Break
2:15 – 4:00: Continue with pH, TA, Brix, N2 discussions and titrations
4:00 – 5:00: Break
5:00 – 6:00: Dinner

Day 2

Day Two

7:45 – 8:00: Coffee
8:00 – 10:00: Chemistry Session 3

  • Ethanol: Ebulliometric Analysis
  • Sulfur Dioxide: Aeration/Oxidation
  • Distillation and Titration Procedure

10:00 – 10:15: Break
10:15 – 11:30: Chemistry Session 4

  • Sulfur Dioxide: Ripper
  • Titration Procedure
  • Acetic Acid: Steam Distillation of Volatile Acid Using Cash Still


Shelton-Badgett NC Center for Viticulture & Enology
Surry Community College
630 South Main Street
Dobson, NC 27017


Hampton Inn and Suites

150 Charlestowne Drive
Dobson, North Carolina, 27017
USA TEL: +1-336-353-9400 FAX: +1-336-353-9401


Click here to register and pay for the workshop.

Contact name: Michelle Norgren
Phone: 417-837-2514
E-mail: michellenorgren@missouristate.edu
Admission price: $225 per person (no charge for VESTA students currently enrolled in VIN 268)
Lodging info: Hampton Inn and Suites,150 Charlestowne Drive Dobson, North Carolina, 27017 USA TEL: +1-336-353-9400 FAX: +1-336-353-9401

Location: Shelton-Badgett NC Center for Viticulture & Enology,, Dobson, NC 27017