The concepts of “alternative food network” (AFN) and of “quality turn” date back to the end of the 1990s and were initially developed primarily within the framework of the economics and sociology of conventions. This framework provides a way to analyze the shifts in quality conventions within food provision systems, moving from industrial quality to domestic, civic, or inspired conventions that characterize the world of food alternatives. AFNs and the quality turn have been confused. This chapter treats the quality turn and AFNs as separate issues. Social movements aim to preserve the identity of AFNs, but there is a consensus in the literature that AFNs are hybrids between conventional (in the sense of “mainstream”) and alternative elements. Hybridity can be seen as a threat to the transformative power of AFNs or, on the contrary, as a way to realize alternatives. The chapter presents different perspectives on hybridity. Two generations of AFNs are distinguished. The first generation was strongly positioned as alternatives. The second generation seeks to address the shortcomings of the first one, being concerned with urban consumers and territorial initiatives, and sustainable development. Combined with the concern for public policies addressing the resilience of territorial food supply systems, it renews the debate on the transformative power of AFNs.