• What is an expeller press?
  • An expeller press is a screw-type machine that mainly presses oil seeds through a caged barrel-like cavity. Some other materials used with an expeller press include meat by-products, synthetic rubber and animal feeds. Raw materials enter one side of the press and waste products exit the other side.
  • Who makes expeller presses?
  • Anderson International, inventor of the Expeller?, manufactures expeller presses for the vegetable oil industry.
  • How does an oilseed press work?
  • When pressing seeds or other ingredients to create cold-pressed oils using an oilseed press, less heat is used. The seeds or ingredients are placed in the press and then are crushed by the machine to obtain the oil. Typically, when these ingredients are pressed, they are at a much lower temperature (122? F) compared to an expeller press.
  • How does expeller pressing work?
  • The oil seeps through small openings that do not allow seed fiber solids to pass. Afterward, the seeds are formed into a hardened press cake, which is removed from the machine. Pressure involved in expeller pressing creates heat in the range of 140¨C210 ¡ãF (60¨C99 ¡ãC).
  • How hot does an expeller press get?
  • As the raw material is pressed, friction causes it to heat. In the case of harder nuts (which require higher pressures) the material can exceed temperatures of 120 ¡ãF (49 ¡ãC). An expeller press is a screw-type machine that mainly presses oil seeds through a caged barrel-like cavity.
  • Where did the expeller? come from?
  • Its first use was on Linseed oil extraction at the Sherwin Williams Company. In 1907, the first Expeller? was exported to a Linseed plant in what is now Kranj, Slovenia. Since then, the Anderson Expeller? has processed over 60 different oil and fat bearing seeds, beans, and nuts.