This is because I'm with my university degree project, and BTW drinking tons of coffee... So this is a little compilation of Lego coffee creations:
Lego Coffee Capsule Dispenser
"Coffee Capsule Dispenser built with Lego NXT. Includes a coin recognition mechanism, a coffee capsule storage with pneumatic dispenser unit, the Lego NXT with screens and programming together with an air tank pump and pressure routing unit."
Crazy LEGO Mixer Robot
I always wanted a device like this, really crazy robot ^_^
The Lego Coffee Assistant
The most known coffee related Lego MOC, it uses NXT brick and a modified spoon to ad sugar and mix your coffee, it has smart internal mechanisms and it is activated by clapping your hands!!
http://www.mocpages.com/moc.php/168993
And now two Tea machines, both using the NXT brick too and with different systems but the same function, helping with the preparation of perfect tea.