The sesame oil extraction process (sesame oil project) typically includes the following main steps:
Cleaning: Sesame seeds are cleaned to remove dirt, stones, and other impurities.
Roasting: The cleaned sesame seeds are roasted to enhance flavor and aroma, as well as to facilitate oil extraction. Roasting also helps in loosening the seed coats.
Cooling: Roasted sesame seeds are cooled down to room temperature before further processing.
Grinding: The cooled sesame seeds are ground into a paste or meal using traditional stone mills or modern grinding machines.
Pressing: The ground sesame paste or meal is then pressed using mechanical presses to extract sesame oil. Cold-pressing or hot-pressing methods may be employed, depending on the desired quality and flavor of the oil.
Filtration: The crude sesame oil obtained from pressing undergoes filtration to remove solids and impurities.
Settling and Sedimentation: After filtration, the oil may be allowed to settle or undergo sedimentation to further clarify it.
Bleaching (Optional): If needed, the oil may undergo bleaching using activated carbon or clay to remove pigments and improve color.
Deodorization (Optional): The oil may undergo deodorization to remove odors and flavors, especially if the sesame seeds were roasted at high temperatures.
Packaging and Storage: The refined sesame oil is packaged in containers suitable for storage and distribution.
These steps provide a general outline of the typical process used to extract and refine sesame oil from sesame seeds. Variations in the process may occur based on factors such as regional practices, scale of production, and desired end product specifications.
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