Leopold Bros., based in Denver, Colorado, is centered on sustainable distilling and the revival of pre-Prohibition whiskey traditions. Founded in 1999 by brothers Todd and Scott Leopold, the distillery combines Todd's expertise in brewing from Germany and Scott's background in environmental engineering from Stanford. Their mission to produce world-class spirits while reducing environmental impact sets them apart in the spirits industry. At the heart of their operations is a commitment to quality and innovation. Leopold Bros. takes a traditional approach to fermentation, using a 5% ABV beer to avoid harsh esters, and employs open-air fermenters to capture the essence of Colorado’s wildflower-rich environment. Their distillery features a diverse range of copper stills, including a rare three-chamber still, a design from the pre-Prohibition era used to create their robust rye whiskey. Sustainability is embedded in every step of their process. The distillery minimizes waste with efficient water usage, relies on reclaimed materials in their facilities, and even cleans their equipment with ethanol byproducts. Their spirits include bourbons, rye whiskeys, gins, amaro, fernet, and fruit liqueurs, with each product made using ethically sourced ingredients.