Refining machine operators tend machines to refine crude oils, such as soybean oil, cottonseed oil, and peanut oil.
Refining machine operators tend machines to refine crude oils, such as soybean oil, cottonseed oil, and peanut oil. They tend wash tanks to remove by-products and remove impurities with heat.
Data Source: Unified Global Standards (ISCED, ISCO, O*NET, ESCO)