The rarity of Grange des Pères wines is primarily due to the estate's confidentially small size and its deliberately very low yields. The estate produces approximately 30,000 bottles of red and only 5,000 bottles of white each year. Added to this is an uncompromising philosophy of production with yields drastically limited to 20-25 hl/ha through rigorous manual work. The estate's international recognition, notably by the Parker guide, has generated demand far exceeding the available supply.