Industry Workshops

When Good Wine Goes Bad: A One-Day Workshop on the Microbial Spoilage of Wine

Presented by The OSU Department of Food Science & Technology, OSU Extension Service, and the Oregon Wine Board

This workshop, lead by Dr James Osborne, OSU Extension Enologist, will explore the various microorganisms present during the winemaking process that can cause wine spoilage issues. The growth and occurrence of these microorganisms will be discussed as well as the specific spoilage issues that can arise from their growth in wine. A series of tastings will be used to illustrate taints that specific spoilage microorganisms can cause. In addition, the use and application of a microscope in the winery will be covered. Specific topics will include:

1. Wine spoilage by
• non-Saccharomyces yeast
• Brettanomyces
• Acetic acid bacteria
• Lactobacillus
• Pediococcus
2. Microscope use in the winery (including demonstrations)
3. Detection, identification, and prevention of microbial spoilage

The workshop will be held again in Summer 2008.  Date TBD.