Since the early 2000’s, archaeological excavations in the Nenjiang river basin have led to the discovery of some of the oldest pottery assemblages in Northeast China, notably at the sites of Houtaomuga and Shuangta (13.000 – 7.500 cal BP). These ceramics are important as they present the emergence of ceramic technology in the region. It has been hypothesized that this is the result of a dietary shift which relies more on fishing. One way to approach this hypothesis and the issue of the relationship between pottery use and changes in subsistence and food preparation methods is through the analysis of organic residues trapped in these sherds. The research presented here examines absorbed lipid residues from 200 total pottery sherds from the Houtaomuga and Shuangta sites to shed light on pottery use among hunter-gatherers in this region. These samples come from Houtaomuga phase 1 through 4 and Shuangta Phase 1 and 2, in an attempt to understand pottery use over an extended period of site occupation. Residues have been extracted from the sherds using a method that does not require the sherds to be damaged and allows for more organics to be recovered. Extracts obtained have been subsequently characterized and quantified using gas chromatography-mass spectrometry (GC-MS). This paper will discuss the results of these analyses, focusing in particular on what they can tell us about changes in subsistence and food preparation practices over time.