Garage Enologists of Sonoma County

Sonoma County, California

GENCO was formed to provide a forum for the exchange of ideas and  information, and to promote viticulture and production of quality wine within the membership. We share information on experiences, successes, failures, and pitfalls in making wine and conduct tastings of member wines for evaluation and enjoyment.

At each meeting we explore a subject of particular interest to our members regarding home winemaking or grape growing. We have an open discussion at some meetings and at others we have a knowledgeable guest speaker. We share in the purchase of winemaking supplies (bottles, corks, carboys, supplies, etc.) to obtain larger lots for better pricing.

GENCO meets once a month in or near Healdsburg. The group shares ideas, problems, and wine, and is not only informative, but fun. We have beginner and experienced winemakers. If you are interested in joining or would like more information about GENCO, please contact us at

" If you don't like the food, have more wine! "
- Elias McDonald
Next Meeting

Next meeting is Wednesday, January 22nd, 7:00 pm
at the Good Shepherd Lutheran Church, Healdsburg
Bring 1 wine glasses

Speaker: Bruce Hagen

Topic: Discussing Reduced Wines, Then Judgement of GENCO-Part II

During the winemaking process, wines can accumulate volatile sulfur compounds. These are the compounds largely responsible for the olfactory defect known as ‘reduction.' A condition characterized of oxygen that can also have a detrimental effect on wine development and quality. The nose of a wine that is reduced is unpleasant - smelling of anything from burning rubber to off-cabbage. Tonight's discussion will add to your the winemaking knowledge base by understanding what is happening to your wine, recognizing the aromas and knowing what to do if you believe your wine is reduced.

View January 2020 PDF announcement

View meeting archives
and maps

Competition & Awards

2020 Bottle Shock Open
Entry Form Deadline: February 14th
Wine Entry Deadline: February 14th

2020 Sonoma-Marin Fair & WineMaker Magazine
Entry Form Deadline: March
Wine Entry Deadline: March

All Competitions & Awards


New GENCO Gem Coming Soon

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