Sine Qua Non is a California cult winery known for its sought-after Rhône style wine blends, produced in very limited quantites. The winery is located in Ventura County within the Central Coast AVA. Manfred Krankl and his wife Elaine established the winery in 1994. Sine Qua Non's winery has been described by Robert Parker as "a Mad Max- junkyard dog sort of winery in one of the ugliest sections of Ventura.", while according to Antonio Galloni (Wine Advocate Aug 2011) "the wines that emerge from this site are often profound. The sheer drive for perfection and attention to detail at Sine Qua Non is something I have rarely witnessed anywhere else in the world." Sourcing fruit from a wide variety of growers from year to year as Krankl follows his preferences, results in the winery to make different wines in each vintage. In collaboration with Austrian winemaker Alois Kracher Manfred and Elaine Krankl have also produced sweet wines under the label "Mr. K" The red wines are based on the grape varieties of Syrah, Grenache, Mourvedre, and a whites made from Roussanne, Viognier and Chardonnay. Sine Qua Non used to produced a Pinot Noir until the 2005 vintage. In certain vintages, the winery has released a sweet white wine or a rosé wine.