**8.6 Solvent extraction (hexane or petroleum ether)**

The machine used to extract the oil was a Soxhlet extractor, which has a capacity of 3 kg. For this process, the already ground quinoa is placed in a basket in which it is in contact with the solvent. Finally, the duration of the process is observed until no more oil remains can be seen inside the machine (**Figure 9**).

### **8.7 Solvent evaporation**

In this stage, the solvent is mixed with the quinoa oil; for this, it is evaporated in a rotary evaporator, where the solvent is divided with the oil (**Figure 10**).
