Moka pots. https://en.wikipedia.org/wiki/Moka_pot It is simple and just works.
This aluminum espresso maker has a couple design flaws. 1) Soft aluminum cup on the inside can often become bent due to people banging the cup against the waste bin to remove the coffee grounds. When it becomes bent, steam will leak around the cup, it is almost impossible to get it to reseal properly. 2) The gasket material burns at a very low temperature. The Ikea RÅDIG [0] is one of the most indestructible best eng…
My concern is that every time I unscrew a Moka pot, I'm pressing against the (plastic) handle and worry one day I'll snap it off (or mess up the lid hinge). I wish someone would come up with a better shape for a user to grip and unscrew the Moka-style coffeemaker or a different type of attachment.
I know Alessi's 9090 clamps to the base, but it's also 5x more expensive than the original (and lacks the simple beautiful of it).