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ubermonkey t1_j6lf467 wrote

“N.b.” is Latin. It stands for “nota bene”, which means “note well” — basically “pay attention to this part!”

PID is an electronic controller that stabilizes the brewing temp of an espresso machine. The abbreviation stands for “proportional integral derivative” but it’s mostly just referred to with the initials.

This is a quickly Googled link that explains it. Nicer machines have them, but often older ones can have them added.

https://sipcoffeehouse.com/pid-espresso/

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