Shanna Farrell loves a good drink. As a bartender, she not only poured spirits, but learned their stories-who made them and how. Living in San Francisco, surrounded by farm-to-table restaurants and high-end bars, she wondered why the eco-consciousness devoted to food didn't extend to drinks.

The short answer is that we don't think of spirits as food. But whether it's rum, brandy, whiskey, or tequila, drinks are distilled from the same crops that end up on our tables. Most are grown with chemicals that cause pesticide resistance and pollute waterways, and distilling itself requires huge volumes of water. Even bars are notorious for generating mountains of trash. The good news is that while the good drink movement is far behind the good food movement, it is emerging.

In A Good Drink, Farrell goes in search of the bars, distillers, and farmers who are driving a transformation to sustainable spirits. She meets mezcaleros in Guadalajara who are working to preserve traditional ways of producing mezcal, for the health of the local land, the wallets of the local farmers, and the culture of the community.

She visits distillers in South Carolina who are bringing a rare variety of corn back from near extinction to make one of the most sought-after bourbons in the world. She meets a London bar owner who has eliminated individual bottles and ice, acculturating drinkers to a new definition of luxury. These individuals are part of a growing trend to recognize spirits for what they are-part of our food system.

For readers who have ever wondered who grew the pears that went into their brandy or why their cocktail is an unnatural shade of red, A Good Drink will be an eye-opening tour of the spirits industry. For anyone who cares about the future of the planet, it offers a hopeful vision of change, one pour at a time.