Researching interculturality can be a complex task because of the multiple angles to consider in the context of English teacher education programs. This article aims to analyse the experiences of five Colombian EFL student teachers who participated as assistants in a cross-cultural and cross-national research project. Information was gathered from research group conversations and reflections written by the EFL student teachers around their work within the research. The data analysis showed that the EFL student teachers' participation in the research project contributed to giving a new significance to their understanding of the concept of interculturality and being intercultural. In the same way, they had the chance to demystify some ideologies learned during their major. And lastly, EFL student teachers renewed their attitude toward the intercultural research process. Finally, it is concluded that the active participation of EFL student teachers in research aimed at promoting interculturality contributed to their understanding of interculturality within their professional practice.