This study discusses the impact of coffee culture modernity on local economic development in Jember district, East Java. Coffee culture has become an important part of the lives of the people of Jember, but modernity has changed the way people enjoy coffee and has had a significant impact on the local economy. The existence of modernity has made a shift in people in Jember who initially drank coffee at coffee shops, now they prefer to drink coffee in modern cafes that are more prestigious. This can of course threaten the existence of simple coffee shops, because the capital they have is not large, making it difficult for them to keep up with the development of modern society that continues to develop all the time. In this study, we use the concept of the juggernaut modernity theory by Anthony Giddens, where in his theory it is explained that modern life is an uncontrollable world, where there is always a process of change that occurs on a large scale and with a deeper scope. This study uses a qualitative research method with an ethnographic approach. The results of the study show that modernity has quite an impact on the economy of the local community, such as the increase in employment due to the number of modern cafes to the emergence of the threat of alienation received by simple coffee shops.

This research will discuss the community's efforts in maintaining the heritage of the ancestors given, namely the Lahbako dance. Lahbako dance is a typical Jember dance, where this dance exists to show a series of tobacco processing from planting to packaging tobacco.  This arian can be said to be a tradition that is carried out every time tobacco planting and has become one of the icons of the city of Jember. It is well known that technological development has been increasingly rapid, and young people are starting to be reluctant to learn or just find out what has become the history of their own nation. The existence of the Lahbako dance which used to be a tradition during the harvest season, is now also used as a tourist attraction, so it can be said that there is a shift in cultural functions. Therefore, efforts are needed to introduce all groups, especially young people so that they can continue to preserve or innovate the culture. In this study we use Robert K. Merton's theory of Structural Functionalism, which emphasizes the need to understand the many functions associated with society, in order to maintain the social structure in society. The functions in question are dysfunction, latent function, and manifest function. In this research using qualitative research methods, with an ethnographic approach.