This study presents a comprehensive examination of high medieval earthenware in southern Scandinavia, focusing on the ceramic assemblages of Lund, dating to the period 1150–1350. Through the creation of typologies based on rim form and the establishment of a chronological framework, it traces how hard greyware, redware, and glazed redware changed during a period marked by urban growth, expanding trade networks, and social change. Moving beyond traditional approaches, the work combines practice theory and entanglement theory with rim form morphology and chemical analysis to explore how pottery changed, and ultimately why. By viewing ceramics within the interconnected processes of production, distribution, and consumption, it reveals dynamic relationships between potters, merchants, and users. From the emergence of glazing technologies, and the decline of Baltic ware, to the spread of wine consumption and the influence of continental trade, high mediaeval pottery emerges as an index of broader cultural and economic transformation.