Here is another post related to Rosicrucian Egyptian Museum. Egypt's people got their drinking water from the river Nile. Nile carried a lot of waterborne diseases. To prevent them, the people drank beer instead of water!
In some shops/bars, the beers were served in a cylindrical goblet made of clay. This goblet had a pointed bottom. This was to ensure that the customer could not put the goblet down and hence had to gulp down the entire beer. And once the beer got over, he would want more! Nice business trick eh? :)