Definitions for "Acerbic"
Keywords:  acrid, sour, caustic, bitter, brew
Sour or severe.
an acrid or sour flavor. A fault in coffee sometimes due to over heating. Like when you leave the glass coffee pot on the heater and tste it a few hours later.
A taste fault in the coffee brew giving an acrid and sour sensation on the tongue. The result of excessive heat after brewing which stews the coffee.