World Development, Vol. 21, No. 3, pp. 429-443, 1993. Printed in Great Britain. 0305-750X/93 $6.00 + 0.00 1993 Pergamon Press Ltd Production of Edible Oils For the Masses and By the Masses: The Impact of the Ram Press in Tanzania ERIC L. HYMAN
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3.1.7 Oil storage In large-scale mills the purified and dried oil is transferred to a tank for storage prior to dispatch from the mill.7 600 8 800 10 000 400----1 200 1 700 2 200 2 400 2 900 3 280 3 440 4 400 5 200 400----1 200 1 700 2 200
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Next, the cooked canola seed flakes are pressed in a series of screw presses or expellers. This action removes 50–60% of the oil from the flakes, leaving the rest to be extracted by other means
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