Beer brewing continued during the Babylonian and Egyptian empires, and it’s estimated the Babylonians had recipes for as many as 20 different types. The Code of Hammurabi, the ancient Babylonian set of laws, decreed a daily beer ration to citizens. The drink was distributed according to social standing: laborers received two liters a day, while priests and administrators got five. At the time, the drink was always unfiltered, and cloudy, bitter sediment would gather at the bottom of the drinking vessels. Special drinking straws were invented to avoid the muck.
Of course, ancient beers tasted much, much different than our contemporary brews. Back then, it was common to add spices and herbs to the fermenting mixture, as well as other ingredients that would seem downright strange to us, including everything from olive oil, cheese and carrots to hallucinogens like hemp and poppy. In addition to being cloudy and filled with sediment, the liquid would be too heavy to create the head of foam so prized by a good bartender today.
In spite of what was, to our tastes at least, a less-than-appetizing finished product, brewers continued to mash, ferment and consume beer—and quite a bit of it, if finds at archeological sites from the Greek and Roman eras are to be believed. Pliny the Elder reported that beer was popular around the Mediterranean years before wine production occurred. As time went on, the science of beer making moved from the street to the cloisters. Christian abbeys were the center of knowledge and learning in the Middle Ages, so monks became the repositories of beer recipes and monasteries turned into breweries. Their refined techniques resulted in the clear, frosty, frothy brews we know today.