Tempranillo with temperatures dropping by as much as 16 °C (30 °F) from the daytime high. The Tempranillo grape is one of the few grapes that can adapt and thrive in continental Mediterranean climates like this. Pests and diseases are a serious problem for this grape variety, since it has little resistance to either. The grape forms compact, cylindrical bunches of spherical, deep blue-black fruit with a colourless pulp. The leaves are large with five overlapping lobes. The Tempranillo root absorbs potassium easily, which facilitates pH levels of 3.6 in the pulp and 4.3 in the skin when it reaches maturity.
Baja California wine industry Petite Sirah than its cousins in Italy. These vines arrived after World War II but identification tags were lost in transit, so no one knows exactly what varieties they are. Many growing and production methods are newer as most wineries have been in existence for only a short time. Many vineyards are new or recently replanted using modern cultivation techniques, improved rootstocks and cultivars. Most wines are fermented in stainless steel. Length of maceration and fermentation depends on the producer. Red wines are usually aged in French or American oak for a period of between a couple to as many