Coffeescenti

Those who are "in the know" regarding coffee. Also used as a derogatory term by those who cast aspersions on coffee snobs.

Derived from Cognoscenti:
co⋅gno⋅scen⋅ti
–plural noun, singular -te  /-ti/ Persons who have superior knowledge and understanding of a particular field, esp. in the fine arts, literature, and world of fashion.

Origin: 1770–80; < It, Latinized var. of conoscente (prp. of conoscere to know) < L. See cognition, -ent

Wow, she really knows a lot about coffee.
Yep, she's a true coffeescenti. She can spot a non-arabica blend a mile away.

Alternate usage:
Wow, she's really loyal to Starbucks.
Yep, she's a coffeescenti- one of those coffee snobs who think that overpaying for burned beans makes her cool.