The Beringer Private Reserve Cabernet Sauvignon 1990 is a red wine from Napa Valley produced by Beringer. It is a Cabernet-dominant blend with a very small amount of Cabernet Franc (approximately 99% Cabernet Sauvignon and 1% Cabernet Franc). The wine is drawn from Beringer’s reserve vineyards in Napa and represents the estate’s Private Reserve bottling.