Method for toasting a food product with infrared radiant heat
US7853128B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2007 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Mar 2, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J37/0807
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A toaster uses radiant heat at infrared wavelengths optimized for producing rapid and uniform toasting of a food product. The infrared wavelengths of the radiated heat are selected for optimum speed and quality (browning and moisture content) of the food product. The selected infrared wavelengths of the radiated heat may also effectively defrost a food product. Defrosting of the food product by the infrared radiated heat adds very little time in obtaining a desired toast color to the food product. A plurality of infrared wavelengths of radiated heat may also be used, wherein the plurality of infrared wavelengths are selected for optimal heat penetration and surface browning of the food product. Shorter wavelengths for browning and slightly longer wavelengths to penetrate the food product for evaporating the moisture therein to allow surface browning by the shorter wavelengths. In addition, the heating energy within the toaster may be further elongated (longer wavelengths) once the infrared radiation is re-radiated off of reflectors within the toaster. The wavelengths of infrared radiated heat may be from about 1 to about 3 microns, and preferably from about 1.96 to about 2.5 micron…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.