Ruby Cabernet

[citation needed] The grape for this type of red wine was developed for California's hot climate, specially for regions such as the San Joaquin and the Napa Valleys.

The intention was to combine Carignan's heat tolerance with Cabernet Sauvignon's quality, like the Cinsaut x Pinot noir cross that led to Pinotage a few years previously.

Vale do São Francisco winery in Pernambuco, Brazilian Northeast region, successfully grows the variety and produces the wine Botticelli Coleção Ruby Cabernet.

[3] Vinícola Campos de Cima in Itaqui, Campanha Gaúcha, grows the grape and produces a 100% varietal of the wine Ruby Cabernet.

[5] For a while Ruby Cabernet was thought to hold a lot of promise for the hotter regions of South Africa, but in practice problems with fruit set have limited its success.

In California's San Joaquin Valley, vineyards should limit irrigation, thin crop, and expose fruit to the sun to maximize wine quality.

Dr. Harold Olmo, creator of Ruby Cabernet.
Carignan
Cabernet Sauvignon