Rambu Solo' and Rambu Tuka' are traditional parties in Toraja, South Sulawesi, Indonesia. At these traditional parties, hosts typically provide alcoholic beverages, such as tuak. Lembang Embatau village has a plantation that produces nira, the main ingredient in tuak. Not only is drinking tuak part of Torajan life; moreover, other tribes living there have adopted this practice. This ethnographic study was aimed at exploring the acculturation process of tuak consumption in North Toraja. Interviews were conducted with 12 informants selected purposively based on their experience with tuak. The informants consisted of residents of Embatau Village who drank tuak, as well as migrants, community leaders, and health providers. Source and technique triangulation were used to ensure the validity of the data. The results show that tuak is an absolute requirement at traditional parties because it is considered to be associated with honor, is believed to enliven the atmosphere, and is used by hosts to express gratitude to guests attending parties. Consumption of Torajan alcoholic beverages has undergone an acculturation process as traditional parties also feature other alcoholic beverages (beer). As well, particular kinds of alcoholic beverages are associated with the socio-economic identity of the hosts of traditional parties. Hosts with high socio-economic status usually provide beer at parties. If tuak and beer are served at traditional parties, people tend to mix them. In conclusion, cultures from other areas have influenced and shaped this local community's culture of alcoholic beverage consumption.