"I don't know. Was there a Ianto Jones at your Torchwood?" He shakes his head. "Nope, not dangerous at all. Well, except for the steam, but that comes standard on coffee makers. It's mostly this," He points out one component, "that increases the pressure, so you can extract more flavour without having to let it brew longer, which can make it bitter, and this part," he points to something else, "de-ionizes the water so the essential oils in the coffee mix in more more easily."