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InSinkErator is an American company and brand name known for producing instant hot water dispensers and food waste disposal systems, generally called "garbage disposals" or "garbage disposers". It is owned by Emerson Electric.


The company was founded in Racine, Wisconsin by John W. Hammes, who was working as an architect; the firm still has its headquarters there. Hammes is credited with inventing the "in-sink" food waste disposal in 1927, for his wife. It works by grinding and shredding solid food waste, using centrifugal force.[1] He spent ten years improving the design and went into business selling the appliance. His company was called the In-Sink-Erator Manufacturing Company.[2] The name is a play on the word "incinerator" and refers to the fact that the mouth of the disposal unit is located "in" the "sink".

The company was acquired in 1968 and is now a division of Emerson Appliance Solutions, part of Emerson (NYSE: EMR), a global technology and engineering company which serves industrial, commercial, and consumer markets.

In 2006, In-Sink-Erator removed the hyphens from their name, becoming InSinkErator, and their company logo was also redesigned. They also released a re-engineered line of high technology disposers branded as the Evolution Series.


  1. ^ Denise DiFulco (August 23, 2007). "Grist for the Daily Grind". The Washington Post. Retrieved 2009-10-22.
  2. ^ Kitchen appliance inventions

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