Abstract: A method of pressing sesame seeds to provide sesame flour having an oil content not greater than 45% by weight and sesame oil having a substantially 100% purity, and the sesame flour made by the method, and the sesame oil made by the method. The method comprises feeding dehulled sesame seeds into an expeller press having a choke opening for expelling sesame flour having an oil content not greater than 45% by weight in a single pressing, and maintaining a temperature not greater than 180.degree. F. in the sesame food material being pressed, and extracting sesame oil at a rate of at least two-thirds by weight of the flour from the dehulled sesame seeds during the single pressing.

Abstract: An aerator comprising a support member in the form of a flat plate which is adapted, when the aerator is in use, to lie in a horizontal plane and to be rotated about its central vertical axis, a plurality of angularly spaced blades secured to the underside of said plate and each extending radially from a central region thereof towards its periphery, each said blade having a maximum depth beneath a horizontal datum at a position intermediate its ends, and being provided with a plate secured to its lower edge and extending on both sides of the blade along at least a portion of that part of the length of the blade between its outer end and the position of maximum depth.