Disrupting Maize undertakes a critical interrogation of the symbol and the staple food of the Mexican nation. As the centre of origin and genetic diversification of maize, the Mexican territory is regarded today as being under threat of irreversible ‘contamination’ by genetically engineered maize, an imported biotechnological product. When the first evidences of such ‘contamination’ were found in 2001, an anti-GM movement was born that quickly became articulated as a defence of cultural identity and national sovereignty. Disrupting Maize mobilizes contemporary theoretical resources in a critical examination of the cultural politics at work in the Mexican defence of maize. From such an examination ‘biotechnological disruption’ emerges provocatively as constitutive of Mexican nationalism rather than externally imposed to it by corporate players. Furthermore, it is conceptualized as a gift, a promise of a more democratic Mexico.