Great Handles!
“Long ago, at a pre-Columbian ritual center across the Mississippi River from present-day St. Louis, the home of Budweiser, people were heartily imbibing a caffeinated tealike beverage commonly known as “black drink.” The chemical residues found in their porous, unglazed ceramic mugs tell the tale.”
http://www.nytimes.com/2012/08/07/science/ancient-caffeinated-8216black-drink8217-was-made-with-holly-analysis-finds.html...