There is some open-end verbage in the rules for alcohol consumption-
"Drunkenness
Just like drugs, alcohol can be abused and have significant negative effects. In general, a character can consume a number of alcoholic beverages equal to 1 plus double his Constitution modifier. Drinks consumed in excess of this total cause the character to become sickened for 1 hour per drink above this maximum. Particularly exotic or strong forms of alcohol might be treated as normal drugs. Those who regularly abuse alcohol might eventually develop a moderate addiction."
Question 1- is the 1+ (Con Mod *2) per hour or per day?
Question 2- is sake considered a "strong or exotic" form of alcohol?
Question 3- at what point does a Drunken Master start to cross the line into addiction rules (alcoholism)?