Buying a Small Scale Sesame Oil Mill
Who Might Need a Small Scale Sesame Oil Mill?
If you're processing more sesame seeds than you would find on the shelves of a typical supermarket, it may be time to purchase a small scale sesame oil mill. Small-scale mills, which can often be customized to suit your processing needs, allow you to efficiently move from extraction to packaging in a series of streamlined steps.
Composition of a Small Scale Sesame Oil Mill
A standard setup for a small scale sesame oil mill includes a roaster, press, sedimentation tank, and cooling tank. Each of these components plays a crucial part in converting raw seeds into refined oil.
The roaster heats raw sesame seeds to approximately 170 degrees Celsius in a low-moisture environment. In this step, the goal is to activate enzymes within the seeds to increase oil yield, without spoiling the seeds by burning them. A roaster in a small scale sesame oil mill includes temperature monitors as well as heating equipment.
Sesame Oil Press
Heated seeds enter the press via a conveyor belt. Depending on its design, the press may churn seeds in a conical tank via an internal screw or press them directly with hydraulics. During pressing, oil seeps out of the seeds and passes through small holes to collect in a tank. The dry seed material forms a cake, which machinery operators can test for remaining oil to assess the efficiency of the press.
At this stage of processing, the sesame oil is considered unrefined. In the sedimentation tank of a small scale sesame oil mill, the unrefined oil is allowed to stand so that seed residues can drift to the tank bottom. Additional filtration stages refine the oil further. The seed residues that sediment at the bottom of the tank can be returned to the pressing stage, allowing additional oil to be extracted from them.
Cooling is the final stage of sesame oil processing before packaging. The low temperatures of the cooling tank cause the sesame oil to condense and crystallize, removing any remaining impurities. At this stage, the oil can be packaged into barrels, bottles, or other containers according to the manufacturer's requirements.