The search results provide information about different types of Hooch, including alcoholic lemonade, gin, rum, and vodka, but do not specify the type of alcohol used in Hooch alcoholic lemon brew. However, according to a Reddit thread, the original Hoopers Hooch, which was launched in the UK in 1995, contained gin. It is important to note that Hooch is also a term used to refer to homemade alcoholic beverages, such as prison wine or jail alcohol, which are made using various ingredients and methods.