The winery is located in Bordeaux, one of the largest on the southwestern slopes of Pomerol. The chateau's consultant is one of the world's most prominent oenologists, Michel Rolland. The vineyards cover an area of ​​26.5 ha and are planted with 78% Merlot, 21% Cabernet Franc and 1% Cabernet Sauvignon. Over the years, Cabernet Sauvignon has been reduced at the expense of Merlot, which gives the wine softness and depth. The soil is mainly gravelly and clayey-sandy, with little iron content. The average age of the vines is 30 years, some of the oldest are 50 years old. The wines produced in the chateau are characterized by a firm structure and freshness. Some describe them as "rather masculine wines." Like all great Pomerol wines, Château Nénin blooms over time, and depending on the harvest, it can take between 10 and 25 years.