If a food bears a USDA Organic label, it means it's produced and processed according to the USDA standards. The seal is voluntary, but many organic producers use it. Products certified 95 percent or more organic may display this USDA seal.
A machinist is a person who uses machine tools to make or modify parts, primarily metal parts. This process of machining is accomplished by using machine tools to cut away excess material much as a woodcarver cuts away excess wood to produce his work.
Machine operators, also knows as machinists or tool and die makers, work with heavy machinery from setup to operation. Machine operators might work with computer-controlled equipment or more mechanically based machines to make sure they are set up properly, working well, and producing quality product.