Originally brewed at Christmas, saisons were left to mature during the colder months and served to the workers in the fields come summer. These workers were called "Saisonniers", from which the style gets its name. They were meant to be refreshing and light to keep the workers cool, but what really defines them is the spicy character that comes from the yeast. They can be peppery, or slightly apple-like, or even have spices such as cinnamon on the nose. This classic Belgian beer style is often reinvented with the addition of US hops or fruit.