EV 204: Science of Winemaking II
Instructors: Michael Moyer, M.S. and Stan Clarke, M.A.T.
Office hours: M, W, and F 10:30-12:00, and by appointment
Pre-requisites: AGPR 120 or CHEM 101, MATH 65, and EV 203
Lecture times: T and Th 10:00 to 11:20am
or M, W, and F 9:30 to 10:20am (3 hours/week)
Lab times: M, T, W, or Th, 1:30 to 5:20pm (4 hours/week)
Course Objectives:
 Learn basic calculations to determine concentrations of important
analytes.
 Understand the chemistry behind and methods of basic wine
analyses, including: pH, titratable acidity, ethanol, free and total
sulfur dioxide, and volatile acidity.
 Understand and perform methods of total tannin, and polymeric
pigment analyses.
 Understand potential wine instabilities and how they are tested for.
 Understand analyses performed by commercial laboratories.
 Understand reasons for and methods of wine filtration.
 Performance of multiple filtrations and bottlings, including system
setup, maintenance and cleanup.
 Understand and perform membrane integrity testing (bubble
point).
 Understand and perform oak barrel and upright maintenance.
Grading: will be based on 4 homework assignments, a midterm and a
final exam. Participation will also be a big part of the grade for the
course. The point distribution is as follows:
3 homework assignments x 50 points = 150
1 midterm x 100 points
= 100
1 final exam x 100 points
= 100
1 lab practical exam
= 50
Participation
= 100
Total
= 500
Notes:
 Exams must be taken on the dates specified below.
 Failure to show-up and participate in lab activites will be reflected
in the final grade.
 Points will be deducted from homework assignments turned in
after the due date. Assignments will not be accepted after the
graded homework has been returned.
Lecture Schedule:
Week
1-Jan
8-Jan
15-Jan
22-Jan
29-Jan
5-Feb
14-Feb
21-Feb
28-Feb
7-Mar
14-Mar
Lecture 1
General Chem Review
Accuracy and Calibration
Sulfite Equalibria
Wine Filtration
Review
Review Exam, Acetic Acid
VA Measurements, Ethanol
Anthocyanins and Tannins
Copigmemtation
TBA
Current Topics, Review
Lecture 2
Units,Concentration Calculations
pH and TA revisited
Free and Total SO2
Wine Filtration cont’d
Midterm Exam
WAWGG Conference
Ethanol cont'd
Tannins and Polymeric Pigment
Micro-oxygenation
TBA
Final Exam, Fri. 3/16, 9:30am
Reading
Iland p. 2-6, 13-17
Iland p. 7-43
Iland p. 54-61
Iland p. 72-75
Iland p. 80-81
Iland p. 88-91
Iland p. 96-97, Fall text: 80-91
Iland p. 98-107
Lab Activity Schedule:
Week
1-Jan
8-Jan
15-Jan
22-Jan
29-Jan
5-Feb
12-Feb
19-Feb
26-Feb
5-Mar
12-Mar
Lab Activities
pH and TA measurements
measure and adjust free [S02]
Free and Total SO2, Ripper titration
TBA
VA by Cash still
Monday lab only, others to WAWGG
Ethanol by Ebulliometry
Spectrophotometric measurements
Tannin and Polymeric Pigment
No lab this week
Final Exam, Lab Practical Exams