There is no "stovetop espresso", there is only good, strong Moka pot coffee.
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Any coffee aficionado will tell you that espresso is its very own thing. True espresso (N.B. not 'expresso") is made by a machine that uses pressures of around 8 atmospheres to force very hot water through a dense cake of finely-ground coffee. It needs a particular build of machine to make it, and nothing else comes close to it. When people use the phrase "stovetop espresso", they mean a generic moka pot and possibly specifically, the Bialetti Moka Express. I admit (opinion incoming) that this is one of the things that grinds my gears when people use the phrase, and I'd happily see it expunged from language along with "pre-ground coffee".
The moka pot will make a good, strong, hearty cup of coffee, anything from 1 cup (and by that, read 'demi-tasse espresso-size cup) to a family-sized 18 cups. It is not close to espresso, lacking both the body and crema beloved by many espresso lovers. Not to say it's not without its charm, and in fact can be used, like the Aeropress, to make reasonable milk drinks like the flat white or cappuccino styles.
I've been brewing this way for what, twenty-odd years, since my last trip to Hungary, when my interpreter's family gave me a 3-cup brewer to take home. I'm quite in love with it for its iconic design, ease of use and versatility. It's portable, can be used with any heat source (though induction hobs need a steel plate for it to be effective (the classic pot being of cast aluminium construction). It's gone camping, accompanied me on trips around the country and, had I a portable gas stove, would have been used to brew on my last train journey. It's less fussy than espresso or a pour-over, stronger than an Aeropress but a little fussier than a French press in terms of grind size.
I've recommended this brewer so often because it's cheap, readily available (many thrift shops will have one for almost pocket change!), and easy to learn to use. With a few simple tweaks, and a good grinder, it will make coffee to suit pretty much all tastes and when not in use, is a timelessly beautiful piece of kitchen technology. </opinion>
But it still does not bloody well make an espresso. Fact, not opinion.
Thanks to JD and chatgpt for helping fix typos.
$ xclip -o | wc -w
397