The Bavarian outfit are 20 points clear at the top of the table and a win against Eintracht Frankfurt on Saturday will see them crowned champions.
The 67-year-old has admitted that he will allow the players to toast their success should they claim the title.
"It would be a great achievement for all of us," Goal.com quotes Heynckes as saying. "We would be insanely happy.
"If someone wants to drink a beer, he should do it. There is no ban on it because I know that my team is very disciplined."
Bayern beat Juventus 2-0 in the first leg of their Champions League quarter-final on Tuesday.