St. George Spirits Eau-de-Vie Poire William is an eau-de-vie, which is the generally accepted name for brandy made from fruits other than grapes. Like other brandy, St. George Spirits Eau-de-Vie Poire William is made from fermented fruit juices which have been distilled and aged in oak casks. You can tell the age of the spirit by its color; the longer a spirit is aged, the darker its color. Older spirits also have a deeper color, higher tannin level, and more complex flavors such as spice, vanilla, and caramel due to extended exposure to oak.