South Koreans love drinking alcohol and it is something that is also deeply engrained in Korean culture.
Soju is also incredibly cheap costing only $1-3 USD per bottle.
There are 10 large producers and countless smaller makers of soju in South Korea so you will find plenty of varieties to try during your stay.
Soju is by far the most popular alcohol of choice across the country, with bottles containing anything from 16% to 45% alcohol by volume.
Foreigners who are new to the country should be aware that many points of etiquette around drinking soju have evolved over the years, such as never pour your own drink and always hold your glass with two hands when receiving a drink from another person.
SOURCE: domandhyo . com/2013/10/some-interesting-factsyou-may-or-may-not-have-known-about-soju . html