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Patent · US9510610B2 · B2 · US

Process for producing precooked bacon slices

(11) Publication number
US9510610B2
(21) Application number
13/401,167
(22) Filing date
2012-02-21
(30) Priority date
2008-01-11
(43) Publication date
2016-12-06
(45) Date of grant
2016-12-06
(51) IPC
A21B 1/00; A23L 13/00; A23L 5/10; A47J 27/16; B65G 27/02; F27D 11/00
(52) CPC
  • A62C Fire-fighting: 3/006
  • A21B Bakers' ovens; machines or equipment for baking: 1/00
  • A23L Foods, foodstuffs or non-alcoholic beverages, not otherwise provided for; preparation or treatment thereof: 1/0121, 13/00, 5/13, 5/15
  • A23V Indexing scheme relating to foods, foodstuffs or non-alcoholic beverages and lactic or propionic acid bacteria used in foodstuffs or food preparation: 2002/00
  • A47J Kitchen equipment; coffee mills; spice mills; apparatus for making beverages: 27/16
  • B65G Transport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors: 27/02
  • F27D Details or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace: 11/00
(73) Assignee
Unitherm Food Systems LLC
(72) Inventors
David Howard
(54) Title
Process for producing precooked bacon slices
(57) Abstract

A process for producing precooked bacon slices comprising the steps of (a) conveying bacon slices through a spiral oven, (b) indirectly cooking the bacon slices in the spiral oven using a cooking medium which is circulated within the oven at a low rate sufficient to prevent the bacon slices from being displaced on the conveyor, and (c) adding steam to the cooking medium as necessary to at least reduce the percentage or substantially eliminate the presence of air in the cooking medium.

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Claims (3)

  1. A process for continuously cooking and browning bacon slices in a spiral oven to produce a pre-cooked slices bacon product resembling a pan-fried bacon product, the spiral oven having a cooking chamber which houses a conveyor that travels in a spiral pattern between a lower inlet opening and an upper outlet opening of the cooking chamber, the process comprising the steps of: (a) creating a substantially air-free environment in the cooking chamber of the spiral oven by adding an amount of superheated steam to the cooking chamber such that the air normally present in the cooking chamber without adding the superheated steam is reduced by about 100%; (b) cooking and browning bacon slices in the substantially air-free environment of the cooking chamber as the bacon slices are being carried upwardly in the spiral pattern by the conveyor by contacting the bacon slices with a superheated vapor cooking medium circulating in the spiral oven so as to not displace each bacon slice from its respective position in the conveyor; (c) maintaining the substantially air-free environment of the cooking chamber by adding superheated steam to the superheated cooking vapor medium circulating in the cooking chamber in step (b); (d) maintaining a cooking and browning temperature of the superheated vapor cooking medium during the step (b) by passing the superheated vapor cooking medium circulating in the spiral oven over one or more heating elements which heat the superheated vapor cooking medium to a temperature of at least 325° F.; and (e) during the step (b) permitting fat to drip down from bacon slices located at higher levels within the cooking chamber to baste bacon slices residing at lower levels.
  2. A process according to claim 1 further comprising the step of preheating the bacon slices prior to entering the cooking chamber for the step (b).
  3. A process for continuously cooking and browning bacon slices in a spiral oven to produce a pre-cooked sliced bacon product resembling a pan-fried bacon product, the spiral oven having a cooking chamber which houses a conveyor that travels in a spiral pattern between a lower inlet opening and an upper outlet opening of the cooking chamber, the process comprising the steps of: (a) eliminating the air normally present in the cooking chamber by adding an amount of superheated steam to the cooking chamber in a manner effective to substantially eliminate all of oxygen normally present to create a substantially oxygen-free environment in the cooking chamber; (b) cooking and browning the bacon slices in the substantially oxygen-free environment of the cooking chamber as the bacon slices are being carried in the spiral pattern by the conveyor by contacting the bacon slices with a superheated vapor cooking medium so as to not displace each bacon slice from its respective position on the conveyor; (c) maintaining the substantially oxygen-free environment of the cooking chamber during the step (b); (d) maintaining a temperature of the cooking chamber during the step (b) by passing the superheated vapor cooking medium circulating in the spiral oven over one or more heating elements which heat the superheated vapor cooking medium to a temperature of at least 325° F., no makeup air flow being added to the cooking chamber; and (e) during the step (b) permitting fat to drip down from bacon slices located at higher levels within the cooking chamber to baste bacon slices residing at lower levels.

Description

This application is a continuation application which claims priority to U.S. patent Application Ser. No. 12/013,337 filed Jan. 11, 2008, and entitled “Process For Producing Precooked Bacon Slices”.

The present invention relates to processes for continuously cooking bacon slices to produce precooked bacon strips and other precooked sliced bacon products.

Because of their thinness, the short cooking time required, and the high fat and water content of the raw product, bacon slices are among the most difficult products to cook consistently. The continuous bacon cooking processes heretofore used in the industry have not been able to provide precooked sliced bacon products having the same texture, bite, mouth feel, color, and appearance as pan-fried products cooked in the home. Thus, a need presently exists for a significantly improved continuous process and system capable of producing such precooked sliced bacon products. A need particularly exists for a process of this type which (a) will provide a production rate similar to the microwave processing systems currently used in the art, (b) will take up less floor space in the processing facility, and (c) will eliminate or at least greatly reduce the fire risk posed by other systems.

Heretofore, in the United States, precooked sliced bacon products have been predominantly produced using continuous microwave oven systems.

Citations (24)

  • US3212426A
  • GB1092769A
  • US3873755A
  • US4354815A
  • US4582484A
  • US4737373A
  • US4957756A
  • US4829158A
  • US5520944A
  • US5078120A
  • US5694835A
  • US6146678A
  • US5997925A
  • US6045841A
  • JP2000296167A
  • US6713106B1
  • US20050092730A1
  • US7107899B2
  • US20060032382A1
  • US20060207436A1
  • EP1386544A1
  • US20040022909A1
  • US20040096555A1
  • US20070023413A1
Record as JSON
{
  "publication_number": "US9510610B2",
  "country": "US",
  "kind": "B2",
  "title": "Process for producing precooked bacon slices",
  "abstract": "A process for producing precooked bacon slices comprising the steps of (a) conveying bacon slices through a spiral oven, (b) indirectly cooking the bacon slices in the spiral oven using a cooking medium which is circulated within the oven at a low rate sufficient to prevent the bacon slices from being displaced on the conveyor, and (c) adding steam to the cooking medium as necessary to at least reduce the percentage or substantially eliminate the presence of air in the cooking medium.",
  "claims": [
    "1. A process for continuously cooking and browning bacon slices in a spiral oven to produce a pre-cooked slices bacon product resembling a pan-fried bacon product, the spiral oven having a cooking chamber which houses a conveyor that travels in a spiral pattern between a lower inlet opening and an upper outlet opening of the cooking chamber, the process comprising the steps of: (a) creating a substantially air-free environment in the cooking chamber of the spiral oven by adding an amount of superheated steam to the cooking chamber such that the air normally present in the cooking chamber without adding the superheated steam is reduced by about 100%; (b) cooking and browning bacon slices in the substantially air-free environment of the cooking chamber as the bacon slices are being carried upwardly in the spiral pattern by the conveyor by contacting the bacon slices with a superheated vapor cooking medium circulating in the spiral oven so as to not displace each bacon slice from its respective position in the conveyor; (c) maintaining the substantially air-free environment of the cooking chamber by adding superheated steam to the superheated cooking vapor medium circulating in the cooking chamber in step (b); (d) maintaining a cooking and browning temperature of the superheated vapor cooking medium during the step (b) by passing the superheated vapor cooking medium circulating in the spiral oven over one or more heating elements which heat the superheated vapor cooking medium to a temperature of at least 325° F.; and (e) during the step (b) permitting fat to drip down from bacon slices located at higher levels within the cooking chamber to baste bacon slices residing at lower levels.",
    "2. A process according to claim 1 further comprising the step of preheating the bacon slices prior to entering the cooking chamber for the step (b).",
    "3. A process for continuously cooking and browning bacon slices in a spiral oven to produce a pre-cooked sliced bacon product resembling a pan-fried bacon product, the spiral oven having a cooking chamber which houses a conveyor that travels in a spiral pattern between a lower inlet opening and an upper outlet opening of the cooking chamber, the process comprising the steps of: (a) eliminating the air normally present in the cooking chamber by adding an amount of superheated steam to the cooking chamber in a manner effective to substantially eliminate all of oxygen normally present to create a substantially oxygen-free environment in the cooking chamber; (b) cooking and browning the bacon slices in the substantially oxygen-free environment of the cooking chamber as the bacon slices are being carried in the spiral pattern by the conveyor by contacting the bacon slices with a superheated vapor cooking medium so as to not displace each bacon slice from its respective position on the conveyor; (c) maintaining the substantially oxygen-free environment of the cooking chamber during the step (b); (d) maintaining a temperature of the cooking chamber during the step (b) by passing the superheated vapor cooking medium circulating in the spiral oven over one or more heating elements which heat the superheated vapor cooking medium to a temperature of at least 325° F., no makeup air flow being added to the cooking chamber; and (e) during the step (b) permitting fat to drip down from bacon slices located at higher levels within the cooking chamber to baste bacon slices residing at lower levels."
  ],
  "description_excerpt": "This application is a continuation application which claims priority to U.S. patent Application Ser. No. 12/013,337 filed Jan. 11, 2008, and entitled “Process For Producing Precooked Bacon Slices”.\n\nThe present invention relates to processes for continuously cooking bacon slices to produce precooked bacon strips and other precooked sliced bacon products.\n\nBecause of their thinness, the short cooking time required, and the high fat and water content of the raw product, bacon slices are among the most difficult products to cook consistently. The continuous bacon cooking processes heretofore used in the industry have not been able to provide precooked sliced bacon products having the same texture, bite, mouth feel, color, and appearance as pan-fried products cooked in the home. Thus, a need presently exists for a significantly improved continuous process and system capable of producing such precooked sliced bacon products. A need particularly exists for a process of this type which (a) will provide a production rate similar to the microwave processing systems currently used in the art, (b) will take up less floor space in the processing facility, and (c) will eliminate or at least greatly reduce the fire risk posed by other systems.\n\nHeretofore, in the United States, precooked sliced bacon products have been predominantly produced using continuous microwave oven systems.",
  "cpc": [
    "A62C 3/006",
    "A21B 1/00",
    "A23L 1/0121",
    "A23L 13/00",
    "A23L 5/13",
    "A23L 5/15",
    "A23V 2002/00",
    "A47J 27/16",
    "B65G 27/02",
    "F27D 11/00"
  ],
  "ipc": [
    "A21B 1/00",
    "A23L 13/00",
    "A23L 5/10",
    "A47J 27/16",
    "B65G 27/02",
    "F27D 11/00"
  ],
  "assignees": [
    "Unitherm Food Systems LLC"
  ],
  "inventors": [
    "David Howard"
  ],
  "filing_date": "2012-02-21",
  "publication_date": "2016-12-06",
  "grant_date": "2016-12-06",
  "priority_date": "2008-01-11",
  "application_number": "US-201213401167-A",
  "family_id": "40850854",
  "cited_by_count": 3,
  "citations": [
    "US3212426A",
    "GB1092769A",
    "US3873755A",
    "US4354815A",
    "US4582484A",
    "US4737373A",
    "US4957756A",
    "US4829158A",
    "US5520944A",
    "US5078120A",
    "US5694835A",
    "US6146678A",
    "US5997925A",
    "US6045841A",
    "JP2000296167A",
    "US6713106B1",
    "US20050092730A1",
    "US7107899B2",
    "US20060032382A1",
    "US20060207436A1",
    "EP1386544A1",
    "US20040022909A1",
    "US20040096555A1",
    "US20070023413A1"
  ]
}

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