Via CalWineries:

The Guinness Book of World Records was originally established to settle the drunken arguments that were previously settled with good old fashion brawls in British and Irish bars. In 1991, alcohol related entries were banned from the book due to fear of litigation. Luckily, the 1979 edition printed these records, which have been reproduced below. Updated records and their sources are included when available.

Strongest Beer
Bavarian brewer Harald Schneider, from southern Germany, brewed a beer that was 25.4% alcohol (2005). Source

Weakest Beer
The weakest liquid ever marketed as a beer was a sweet ersatz beer from Germany be Sunner, Colne-Kalk in 1918. It had less than 0.2 percent alcohol.

Speed Beer Drinking
Steven Petrosino of New Cumberland, Pennsylvania on June 22nd, 1977, drank 1 liter of beer in 1.3 seconds. Peter G. Dowdeswell of Earls Barton drank two liters in 6.0 seconds on February 7th, 1975.

Fastest Beer Drinking Relay
Czech patriots drank 2,662 half-litres of beer in less than 17 hours. Drinking at a rate of over 156 beers per hour, or 2.6 mugs per minute, the Czechs can now claim to be the fastest “relay” drinkers in the world (2004). Source

Highest Documented Blood Alcohol Level
An unidentified middle-aged Latvian man was unconscious but stable after a blood test showed 7.22 parts per million (0.7%) of alcohol, police spokeswoman Ieva Zvidre said. “An average person would vomit at around 1.2, lose consciousness at 3.0 and stop breathing at a level of about 4.0 parts per million” Zvidre said (2003). Source

Most Alcoholic Person (actual name of record)
It is recorded that a hard drinker named Vanhorn (1850 – 1911) averaged more than four bottles of Ruby Port per day for 23 years prior to his death at 61. He is believed to have emptied 35,688 bottles.

Beer Consumption
The nation with the highest beer consumption per person is West Germany, with 39.8 U.S. gallons per person in 1976. In the northern territory of Australia, the annual intake has been estimated to be as high as 62.4 U.S. gallons per person.

Youngest Recorded Death from Alcohol Poisoning
A 4 year old boy, Joesph Sweet, in Wolverhampton, England, in died 1827 from alcohol poisoning, reported in the Stafford Assizes case R. v. Martin.

Most Alcoholic Drink
During Independence (1918 – 1940) the Estonian Liquor Monopoly marketed 196 proof potato alcohol. In the United States, Everclear (190 proof) is marketed by the American Distilling Company.