Good news / bad news...
No plans for espresso machines onboard.
But apparently in first you can ask for cold bottled espresso for free, or pay for it in economy.
Q: Will you offer Illy espresso or just basket brewed coffee?
A: We will not add espresso machines onboard. We do, however, offer illy’s cold bottled espresso drink complimentary in premium cabins and for purchase in economy on domestic flights.
https://unitedairtime.com/your-quest...brewed-coffee/
Anyone try that?