The following was found near an empty bag of Espresso 51 espresso roast coffee.
"After analyzing the data we've gathered from intercepting Earth's transmissions, it seems that one of their favorite drinks is a dark and robust brew known as 'espresso roast coffee.' This potent concoction is made by subjecting coffee beans to high temperatures and pressure, resulting in a strong and intense flavor that can power even the most sleep-deprived human through their day. We can only assume that this beverage is part of some kind of Earthling survival strategy. We may need to conduct further investigations to determine if it's safe for our kind to consume."