Seminars & Trade Shows
May 7, 2015 
Walla Walla, WA

Wine Stability: Where chemistry and physics meet

Date: Thursday, May 7
Time: 1:00 PM - 2:30 PM

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

 Click here to register

June 17, 2015 
Walla Walla, WA

Prepare for Harvest 2015

Date: Wednesday, June 17
Time: 2:00 PM - 4:00 PM

Location: Walla Walla Community College
500 Tausick Way,
Walla Walla, WA 99362

Presented by : Dr. Richard DeScenzo and Dr. Steve Price

Join us as we share lessons and examples from past vintages to help you pinpoint what ou can expect this year.

July 9, 2015 
Santa Rosa, CA

Prepare for Harvest 2015

Date: Thursday, July 9
Time: 10:00 AM - 11:00 AM

Location: Sonoma County Vintners
3637 Westwind Blvd.
Santa Rosa, CA 95403

Presented by : Dr. Richard DeScenzo

Join us as we share lessons and examples from past vintages to help you pinpoint what you can expect this year.

This seminar is offered in partnership with the Sonoma County Vintners. Please contact: Michael Haney 707-522-5844,


November 12, 2015


Date: Thursday 12 November
Time: 8am - 3pm                   
Location: Napa Exposition Fairgrounds
575 Third Street
Napa, CA. 94558

More info

December 3, 2015

Date: Thursday 3 December
Time: 10am - 5pm                   
Location: Sonoma County Fairgrounds - Hall of Flowers & Grace Pavilion
1350 Bennett Valley Road
Santa Rosa, CA. 95404

More info