Mead

Mead is an alcoholic beverage made by fermenting honey that has been diluted by water. Mead was known in classical Greece and imperial Rome. It became the favorite drink of many European tribes after the fall of Rome.

Mead is a also favorite drink in the Wizarding world. In Harry Potter's sixth year at Hogwarts, Professor Horace Slughorn gave Ron Weasley a glass of oak-matured mead, after giving him the antidote to a Love Potion as a pick-me-up, unaware that the mead had been poisoned by Draco Malfoy, who had intended that the mead bottle reach Albus Dumbledore. Only quick work by Harry Potter, who shoved a Bezoar down Ron's throat saved his life.