This study investigates how the strength of students’ attitudes affects their processing and evaluation of information online, focusing on the contentious topic of organic foods. The findings reveal that students with strong attitudes toward organic foods tended to spend less time on and deemed less credible the websites presenting opposing views, while they included more consistent information in their essays. Conversely, students with weaker attitudes devoted more attention to the opposing information but still exhibited biases when evaluating and presenting the information in their written tasks.