The initiative of making soap is not a new idea one. However, the success of the students in making soap with used cooking oil, which can help protect the environment, persuaded the jury board to give the third prize to the innovative work.

 

Especially, the environment friendly product can be made at low costs and can be used right in school, which can help improve students’ awareness of the green lifestyle.

 

The idea of making soap with used cooking oil was raised when three students found a big volume of cooking oil left at the school’s canteen after the cooks fried potatoes and prepared meals.

 

The students then thought it would be harmful to the people’s health and the environment, if the oil is thrown away or re-used.

 

The three students then decided that their idea needed to be turned into reality. They persuaded the cooks not to use vegetable oil many times and to give them the oil after cooking.

 

In order to make soap, the students spent most of their time reading relating documents. They confined themselves in the laboratory, asked for the teachers’ help, believing that they would succeed one day, and their invention would make a big change in the habit of dealing with used cooking oil.

 

The students had to undergo three stages in making soap. At first, they had to filter the used oil to exclude solid waste. After that, they make up soap. And the final stage is to refine soap, create scents and color to help the soap more attractive.