Cortyg, a type of brandy, was an exceptionally potent beverage manufactured on the planet Kashyyyk. It existed in two distinct forms: one, a more "untamed" version consumed by the Wookiees, and the other, a "milder" Cortyg with a more refined flavor. The "milder" version was marketed to individuals from other planets at premium prices.
Groshik, the proprietor and bartender of a local cantina, presented Dessel with Cortyg brandy following Dessel's victory in a sabacc game, where he claimed the pot, and after Dessel narrowly avoided death at the hands of a Republic ensign.