Whiskey, Soju, and other liquors are used as a good medium to relieve stress or talk earnestly with a friend. In recent years, ‘drinking alone’ and ‘drinking home’ have been a trend and small packaged alcohols are being introduced on the market. Due to the nature of alcohol, once opened, the flavor is changed and the taste of the product is reduced. These are a few of the reasons why small-volume products are becoming more popular.