Fuel for IT pros

Inspired by the discussion of jobs. I want to find out for myself who works on what.

I'm drinking tea, black, brewed. Without anything, with sugar or twix type chocolates. But my German colleagues drink coffee in their office. They impose themselves in tiny bags and then in the coffee machine the whole thing is prepared in a mug. I think the sound of a coffee machine is familiar to many when it rattles and slowly, under pressure, pisses coffee in a mug. So this sound in the office quite often comes from the kitchen.

There is also a colleague who drinks alternately, then tea, coffee, chamomile tea, as well as from all other strange herbs and flowers. I do not really understand how you can drink this nuclear mixture and call it tea. Although there is even worse, I tried, you drink from an iron pipe, and the pipe, in turn, in the glass and at the end of it has a filter, and in the mug brewed tin, a mixture of herbs or just one sort, usually concentrated so that you squint when you try.