
Seems to me this espresso cup is a bit large. Normal serving size is 1 Fl. oz. This cup looks like a 10oz. shot, which would give you a whopping 750mg jolt of caffeine. Ye-ha! Angelo Moriondo, by the way, was the first person to patent an espresso machine in 1884. Patent no. 33/256. A simple reference number any librarian keeps in their head and is often used for excitement purposes when two librarians mate.