In order to reduce the incorrect disposal of cooking oil in nature, and reduce the environmental impact to avoid ecological degradation. Workshops were held at the IFSC - Caçador, and at another educational institution in the city, applying chemical concepts in obtaining soybean oil, and its reaction when in contact with some saponifying substance (NaOH). In this way the content of organic chemistry was applied in a practical way, in order to try to unclog the gap in the theoretical content, and thus facilitate the students understanding. ; Considerando o desgaste ambiental gerado ao longo dos anos, buscam-se formas de reduzir este impacto e evitar a degradação ecológica. Visando a proteção ambiental e o desenvolvimento sustentável, utilizou-se o óleo de cozinha o qual já sofreu oxidação (tenha sido realizado fritura), para a produção de sabão caseiro. Evitando assim o descarte de forma incorreta na natureza de maneira a evitar consequências em larga escala.DOI: http://dx.doi.org/10.35700/ca.2018.ano5n8.p99-103.2233