While food security in Vietnam has significantly improved in recent decades, many urbanites still rely on private food charities. Meanwhile, growing food safety concerns have been studied with a strong focus on emerging middle classes, whereas socio-economic precarity connected to food safety has attracted less attention. Drawing on ethnographic research conducted in food charities in Ho Chi Minh City, this article examines how symbolic and spatial boundaries perpetuate power imbalances within charities and affect patrons’ food safety practices. It challenges the narrative that caring about food safety is limited to affluent consumers, instead highlighting the structural constraints that prevent people in urban poverty from acting upon food safety concerns, including (1) power imbalances within food charities and (2) lack of overall food security. The research shows the limitations of food charities in establishing long-term food security for socio-economically marginalised citizens and of a governmental food safety approach emphasising consumer ‘choice’.