The hourglass does not require any electricity; simply combine 2 1/4 cups of coarsely ground coffee beans with 3 1/2 cups of water in the brewing chamber and allow the coffee to infuse with the water for 12 to 24 hours. When the infusion process is complete, turn the hourglass over and 16 oz. of extract instantly drains through a reusable stainless steel filter and into the extract chamber. Combine some of the extract with hot water for traditional coffee or cold water for iced coffee. The extract can be kept in the included carafe and stored in a refrigerator for up to two weeks.So, I don't know about that two week business. All those aromatics are, by definition, volatile. Calling food chemists -- that can't be right, can it?
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.