Whereas most grapes on the Canaries were imported from Spain and Portugal, even if they have since disappeared in those countries, Listan Negro is a truly indigenous grape. El Esquilon Vineyard has 80+ year old Listan Negro and Tintilla vines grown in the traditional Cordon Trenzado trellising system on volcanic soils at 450 to 550 meters altitude with a Northeast and North aspect. The grapes were fermented in concrete tanks with natural yeasts and wines were bottled unfiltered after 11 months ageing in 500 liter neutral French oak barrels.
The Listán Negro grapes come from the El Esquilón vineyard and are 80 years old, while the Tintilla is about fifteen. The 1.2 hectare vineyard faces northwards and is 550 metres above sea level. Although the soil has low yields due to its high levels of volcanic rock, the wines are rather intense and complex.
The grapes are destemmed without being crushed. They later ferment on their autochthonous lees for 14 days with manual batonages, reaching a temperature of 28ºC. Following a 10-day-long post-fermentation maceration, the wine is devatted in French oak (Allier and Nevers) barrels, where it undergoes malolactic fermentation on its lees. It later ages for ten months, and is finally bottled without being filtered. Yearly production of this wine is limited by the low yields of the vineyard.