G4 is crafted using enhanced traditional methods, and Felipe knows that the fermentation process is where the magic happens, de Madera is fully fermented in new Pine Wood tanks vs. steel. This imparts a great deal of unique flavors into the tequila. Add to the wood-fermentation the use of well water in this expression and seven months of aging in G4's nearly ancient George Dickel American whiskey barrels. The layers of complexity in this G4 are entirely unique and highly complex.