If a colonist gets addicted to beer, how much beer will he need to consume every day to avoid the withdrawal effects?
Is it possible to avoid withdrawal effects while not drinking enough to risk liver damage?
I think you could get by with one beer every couple days. One beer per day shouldn't cause long-lasting damage, I think.
But does "one beer every couple days" prevent withdrawal? Does one beer per day prevent withdrawal? If not, that doesn't really answer the question.
One beer every two days will probably stop withdrawal. One beer every day will very probably prevent withdrawal, and is unlikely to cause damage to the pawn's liver.