Location: Walla Walla Comunity College
Center for Enology & Viticulture
3020 E. Isaacs Ave.
Walla Walla, WA. 99362
Presented by : Dr. Richard DeScenzo
Stability problems in wine
Wine instability is a frequent problem across the industry, resulting in product recalls and monetary losses. These issues can take many forms - including heat, cold, and collidal instabilities - resulting in a product that is not acceptable to consumers.
Join specialists from ETS as they focus on the causes of these instabilities, emphasizing heat and cold instability. The presentation will cover:
The chemistry underlying heat-induced haze and bentonite fining
Methods of determining heat stability and interpretation of test results
Cold stability: the science behind the formation of potassium bitartrate
Choosing the right cold stability methods, including conductivity and concentration product
Case studies on colloidal instabilities - interactions between polysaccharides, proteins, and phenolic compounds