Note: In China, You have to older than 18 to drink.
Personally speaking, I am allergic to alcohol, any type. I havent tried any type of liquor or bear in Beijing. So the following content is retrieved from the Wikipedia and Lostlaowai.
Made in Beijing, Er guo tou (二锅头,Ar-Goh-Tou) is a famous liquor over the country.
Er Guo Tou means "second distillation" (literally "head of the second pot"), which indicates its level of purity. It is a clear, potent spirit and takes six months to produce. It is often flavored with walnuts, longans, jujubes, ginseng, and/or sugar. Although over 60% alcohol it is also often blended with other spirits to produce a milder drink.
Er guo tou is often inexpensive (1-2 dollars), and thus particularly popular among blue-collar workers across northern and northeastern China. It is probably the most commonly drunk baijiu in Beijing, and is frequently associated with that city.
The taste of Er guo tou: Based on LostLaowai, it delivers a punch to your soft parts and does not call you the next day. So worth of a try?
Photo credit: Wikipedia
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A guide to Chinese Alcohol: http://goo.gl/PXTvX