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.
Architect John W. Hammes founded the company in Racine, Wisconsin, where it remains headquartered. 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. He spent ten years improving the design and went into business selling the appliance. His company was called the In-Sink-Erator Manufacturing Company. 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".
Emerson (NYSE: EMR), a global technology and engineering company which serves industrial, commercial, and consumer markets acquired the company in 1968 and made it a division of its Emerson Appliance Solutions.
In 2006, In-Sink-Erator removed the hyphens from its name, becoming InSinkErator. It also redesigned the company logo was also redesigned and released a re-engineered line of high technology disposers branded as the Evolution Series.