Bruno Latour’s actor- network analysis or empirical philosophy is the inspiration for this study of the actor status of the milk containers, with a focus on bottles from the 1930s and cartons from the 1960s. The bottles of the 1930s were an important element in the implementation through school meals of new dietary regimes. In relation to the social hygiene programme, the bottle had agency, concretising and internalising hygiene, health and modernity. By the time the bottle was a common consumer good in the 1960s, it was no longer modern and conveyed other ideas. It was heavy for the housewife to carry and took a lot of room in the new, but small, fridges. It was a resource problem for the industry and the associated fat milk content was a health problem for the health authorities. The bottle was replaced by disposable cartons. The article explores the technologies, logics and networks the two objects were part of. How their materiality made a difference is central to the analysis. While glass demonstrated the dairy industry’s technology, the carton hid it and became rather a platform for nostalgic representation signifying back to nature and life in the country.