What's been implied is that the better the experience of the alcohol, the bigger the effect. It's why the swill she has works on her worse, because it tastes like shit. She could just down some good alcohol, but she'll be more powerful if it's made into a mixed drink, first.Just checking, but was it ever established that she can't just down straight alcohol (so long as it is given willingly by a human), rather than having to stall for time to make a mixed drink?