Nery Furlan Mendes A, Chagas da Silveira V, Pereira Barcellos C, Mendonça Ambrozim F, de Jesus Júnior MM. Reuse of cooking oil for soap making: Alternative method to promote environmental awarenessand increase the income of poor communities in the municipality of São Mateus/ES. Guará. 2025;2(2):5-13. doi:10.30712/guara.v2i2.9823