Wine Microbiology

January 13, 2022 | Ames, Iowa

A workshop examining the microbes that can make or break a wine.

Course description

Participants will receive instruction and hands-on experience in microbiological lab techniques for winemaking, including microscope use. In addition, instruction will cover sanitation strategies and the sensory impact of spoilage microbes.

Attendees are invited to bring samples to observe under the microscope. (Optional)

Face masks are encouraged.


Course instructors are members of the Midwest Grape and Wine Industry Institute.


Thursday, January 13
8:30 Am Registration and check-in
9:00 am

Welcome and introductions

Winery sanitation

Microbial faults

Healthy S. cerevisiae

Spoilage yeast

Intro to using the microscope

Yeast identification and cell counting, cell viability

Healthy malolactic bacteria

Spoilage bacteria

Bacterial identification and features to look for

Chemical techniques, culture techniques, molecular techniques

Production strategies, using microbial data for decision-making

5:00 pm Course adjourns


Thursday, January 13, 2022

Registration check-in 8:30 aM. The program begins at 9:00 aM and concludes at 5:00 PM.


2384 Food Sciences Building
536 Farm House Ln
Ames, Iowa 50011

Parking is available in the East Parking Deck, a short walk from the Food Sciences building or the Memorial Union parking ramp. Parking fees are not included in the cost of registration.


Hosted by the Midwest Grape and Wine Industry Institute, Iowa State University Extension and Outreach and the Iowa State University Department of Food Science and Human Nutrition.


Pay by credit card

Pay by check


Registration, prior to midnight, January 7, 2022

Registration includes lunch, refreshments and materials.


  • Pre-registration is required to attend this course. Registrations must be completed online or postmarked prior to midnight, January 7, 2022.
  • Class size is limited and pre-registration is required to attend. Registrations accepted on a first-come, first-paid basis. Registration will be closed if the course reaches capacity.
  • Requests for refunds must be received prior to midnight, January 7, 2022.
  • Confirmation of registration is sent via email. Please provide a valid email address when registering


Maureen Moroney

Maureen Moroney
research associate
Midwest Grape and Wine Industry Institute
(515) 294-3176

For assistance with registration, receipts, cancellation or questions on the status of your registration please contact ANR Program Services at (515) 294-6429 or

Photos and/or video taken at this course may be used by ISU Extension and Outreach for promotional, commercial, educational and research purposes. If you prefer not to be photographed, please speak with the photographer.