Pedro or PX
Pedro Ximénez (also known as PX) is the name of a white Spanish wine grape variety grown in several Spanish wine regions but most notably in the Denominación de Origen (DO) of Montilla-Moriles. Here it is used to produce a varietal wine, an intensely sweet, dark, dessert sherry. It is made by drying the grapes under the hot sun, concentrating the sweetness (similar to straw wine production), which are then used to create a thick, black liquid with a strong taste of raisins and molasses that is fortified and aged in solar.
Pedro Ximénez is most widely grown in Spain where there were 9,583 hectares (23,680 acres) of the grape in cultivation as of 2008. The vast majority of these plantings are found in the Spanish wine region of Montilla-Moriles where the grapes are used to make fortified Sherry-style wines labelled as PX. After harvest the Pedro Ximénez grapes are traditionally laid out on mats to further desiccate and dry in the sun (in a style similar to straw wine production). The high sugar and low acid wine made from these pressings may be fortified or not, depending on winemaker style, but will usually be very sweet and have a strong aroma and flavor of raisins. The wine may also be aged in a solera, similar to Sherry, with the age of the solera often stated on the wine label. Additionally, some Pedro Ximénez grapes are used as sweetening agents for other wines made in the Montilla-Moriles region.
The grape can also be found in the Denominación de Origen (DO) of Jerez de la Frontera, Málaga and Sierras de Málaga and Valencia. However, as the Pedro Ximénez grape tends to be very disease prone and often doesn't thrive in the albariza soils of Jerez like Palomino, Sherry producers in Jerez de la Frontera will often (legally) purchase Pedro Ximénez wine from the Montilla-Moriles region to blend into their sweet Sherry wine.
In 2008, additionally Spanish plantings of Pedro Ximénez were found in the Canary Islands (less than 1 hectare (2.5 acres)), Castile-La Mancha (117 hectares (290 acres)), Catalunya (12 hectares (30 acres)) and Extremadura (639 hectares (1,580 acres)).