> Essence? What the hell is a cockroach essence?

Makes me think of La Croix sparkling water because all their drinks have fruit "essence" [1] in them. > Essence is created by heating items such as fruit and vegetable skins, rinds, and remnants at high temperatures, producing vapors. These vapors are condensed and then sold by the barrel.

I wonder if it's a similar process?

[1] http://www.businessinsider.com/la-croix-mystery-ingredient-n...