I really wanted this thing to work. I could make my morning triple shot in the microwave, a standard feature of every office.
Water goes in the bottom, ground coffee in a screened basket in the middle.
Apply heat, water boils, steam is forced through coffee, and espresso ends up in the top. Quick and easy. It's a great idea. But I tried three different coffee grinds, from medium fine to coarse, and two different microwaves, and the Expresso Mio just didn't work. It splattered espresso it all over the inside of the microwave.