Book 11, Slave Girl of Gor, page 134

"Sul paga is, when distilled, though the Sul itself is yellow, as clear as water. The Sul is a tuberous root of the Sul plant; it is a Gorean staple....the still with its tanks and pipes lay within the village, that of Tabuk's Ford, in which Thurnus, our host, was caste leader.
'Excellent,' said my master, sipping the sul paga. He could have been commenting only on the potency of the drink, for Sul paga is almost tasteless. One does not guzzle Sul paga. Last night one of the men had held my head back and forced me to swallow a mouthful. In moments things had gone black and I had fallen unconscious."

Book 11, Slave Girl of Gor, page 134

"Sul paga, as anyone knew, is seldom available outside of a peasant village, where it is brewed. Sul paga would slow a thalarion. To stay on your feet after a mouthful of Sul paga it is said one must be of the peasants, and then for several generations. And even then, it is said, it is difficult to manage. There is a joke about the baby of a peasant father being born drunk nine months later."

Book 11, Slave Girl of Gor, page 414