Wiktionary
meadery
n. A place where mead is made.
Wikipedia
Meadery
A meadery is a winery that produces honey wines or meads.
Particularly in Cornwall, a meadery can also refer to a type of restaurant that serves mead and food with a medieval ambience. A meadery would typically be in the style of a banquet hall, having wooden flooring, heavy wooden tables, and lit by candlelight with white-painted granite walls.