What did they drink during renaissance?

Beer, wine, mead and for those under the age of 14 either watered down wine or milk. Water was often contaminated and therefore not drunk very often if one could avoid it. Whiskey while common was considered a drink treated much the same as it is today. Tea in the traditional sense was all but unheard of until the later 1600's and was drunk on no where near the level it is today until the early 1800's, although herbal infusions were occasionally drunk on physicians orders. Coffee didn't come into fashion until the later 1600's. Chocolate for the most part was unheard of until the mid-late 1600's.

So all in all the Renaissance was a fairly inebriated period of time.