(Wines&Vines) - In a session lasting a little longer than an hour, four experienced winemakers discussed fermenting grapes in ancient clay qvevri as well as using sophisticated flash détente technology. 

Along the way, they also touched on fermenting red wines in barrels and using concrete tanks during a well-attended session at the Unified Wine & Grape Symposium in Sacramento. 

Moderated by Plata Wine Partners director of winemaking Alison Crowe, the session began with a presentation by Dr. Brent Trela, who is an assistant professor of enology at Texas Tech University, consulting winemaker and director of research of The Qvevri Project, which supports the use of clay qvevri for winemaking.