Pauley Perrette is known for portraying the quirky Abby Sciuto on NCIS who has a penchant for Caf-Pows.

Does Tony DiNozzo Really Want His Own Team On 'NCIS'?

Throughout the twelve seasons that have aired of the hit CBS show, Abby has been seen time and time again sucking down the highly caffeinated Caf-Pows in her lab or elsewhere in the NCIS headquarters and Gibbs (Mark Harmon) is usually the one bringing them to her.

It turns out though, Perrette isn't actually sucking down a highly caffeinated beverage during all of these scenes. The actress divulged during a recent Twitter Q&A that she actually has a healthy alternative in those Caf-Pow cups.

Bishop's Relationship With Her Husband Will Get Rocky In New Season Of 'NCIS'?

She revealed she is asked quite frequently what she is actually drinking and it happens to be "cranberry juice."

It's actually "unsweetened" and Perrette further dished that it's "VERY TART!"

Another cool fact from set life that the actress shared is the wall in the NCIS conference room is filled with signatures from actual NCIS agents. How awesome is that?

Perrette even shared what she does during her downtime on set. She happens to "sit alone very quietly" in her trailer where she recites prayers and reads "bible meditations."

She also shared one thing on set that bugs her. It's her mic pack since.

"It's in a large neoprene belt that sticks out of my belly in all my cute dresses," she stated.

NCIS returns to CBS on Sept. 22 at 8 p.m. ET.

Tags: NCIS Pauley Perrette television CBS