Wine at its core is really just one ingredient: grapes. The ancient ways of making wine consisted of not much more than crushed grapes left to ferment in their juices and turn into alcohol. Over time, ...

Banner image: Rows of grape vines in a Napa Valley vineyard. (Credit: Eve-Lyn Hinckley) Each week during growing season, California winemakers coat their precious grapes with sulfur fungicides to ...