Food and agriculture systems offer rich case studies for interrogating how the politics of expertise and knowledge continue to evolve in unsettled, uncertain times. Traditionally, STS scholarship has focused on the epistemic politics of expertise: for example, dominant institutions and actors have long granted scientific and technical expertise greater legitimacy and authority, compared to other forms of knowledge production.  Now, the advent of emerging agrifood technologies – such as CRISPR-Cas, farm automation, lab-grown meat, and big data – has reinforced technologically-centered knowledge making that promises greater control over nature while gesturing to more equitable, inclusive, and diverse outcomes. Similarly, the COVID-19 pandemic has exposed many struggles over expertise in food and agriculture. Public health experts, health departments, food companies, and government agencies struggled within and against partisan politics to establish credibility, often sidelining the embodied knowledge and agency of workers on farms, in supermarkets, and at meat processing plants. Who is most knowledgeable about workplace conditions, worker life, risk and exposure, and health and safety? What becomes of the ‘undone science’ and unpracticed expertise in realms of agroecological, field-based, and observational modes of producing knowledge about nourishment? How do the racial justice protests that have erupted on the world stage in 2020 draw our attention not only to policing and surveillance as S&T-mediated forms of racial oppression, but to how seemingly neutral and depoliticized food and agriculture S&T research, artifacts, and applications can propagate racial oppression and settler-colonial worldviews? This panel welcomes papers on a wide range of expert politics on such topics in food systems. We are particularly interested in papers that critically evaluate the nature and meanings of food-related expertise and knowledge in these broad three areas: new technologies, the pandemic, and racial justice. We also encourage papers that draw on diverse methods as well as traditional STS methods, including participatory action research, media analysis, scholar-activism, community organizing, multi-species perspectives, the arts, and humanities.