WO2000078156A1 - Aerated confectionery coatings - Google Patents

Aerated confectionery coatings Download PDF

Info

Publication number
WO2000078156A1
WO2000078156A1 PCT/GB2000/002184 GB0002184W WO0078156A1 WO 2000078156 A1 WO2000078156 A1 WO 2000078156A1 GB 0002184 W GB0002184 W GB 0002184W WO 0078156 A1 WO0078156 A1 WO 0078156A1
Authority
WO
WIPO (PCT)
Prior art keywords
inlet
aerator
temperer
outlet
assembly
Prior art date
Application number
PCT/GB2000/002184
Other languages
French (fr)
Inventor
Peter Arthur Brown
Original Assignee
Apv Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Apv Limited filed Critical Apv Limited
Priority to AU55425/00A priority Critical patent/AU5542500A/en
Publication of WO2000078156A1 publication Critical patent/WO2000078156A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G1/00—Cocoa; Cocoa products, e.g. chocolate; Substitutes therefor
    • A23G1/30—Cocoa products, e.g. chocolate; Substitutes therefor
    • A23G1/305—Products for covering, coating, finishing, decorating
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G1/00—Cocoa; Cocoa products, e.g. chocolate; Substitutes therefor
    • A23G1/04—Apparatus specially adapted for manufacture or treatment of cocoa or cocoa products
    • A23G1/10—Mixing apparatus; Roller mills for preparing chocolate
    • A23G1/105—Mixing apparatus; Roller mills for preparing chocolate with introduction or production of gas, or under vacuum; Whipping; Manufacture of cellular mass
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G3/00—Sweetmeats; Confectionery; Marzipan; Coated or filled products
    • A23G3/02—Apparatus specially adapted for manufacture or treatment of sweetmeats or confectionery; Accessories therefor
    • A23G3/0205—Manufacture or treatment of liquids, pastes, creams, granules, shred or powder
    • A23G3/0215—Mixing, kneading apparatus
    • A23G3/0221—Mixing, kneading apparatus with introduction or production of gas or under vacuum; Whipping; Manufacture of cellular mass
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G3/00—Sweetmeats; Confectionery; Marzipan; Coated or filled products
    • A23G3/34—Sweetmeats, confectionery or marzipan; Processes for the preparation thereof
    • A23G3/343—Products for covering, coating, finishing, decorating
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G2220/00—Products with special structure
    • A23G2220/02—Foamed, gas-expanded or cellular products

Definitions

  • This invention relates to the production of chocolate andtraction coating material particularly to the production of coatings containing gaseous bubbles, such as chocolate coatings containing bubbles of air.
  • Such coating materials generally have to be 'tempered' and then undergo a process of gas addition to provide the bubbles, tempering consisting of subjecting the material to controlled cooling and stirring to produce special crystal growths in the fat, which are desirable to achieve the correct preparation of the chocolate or couverture.
  • tempering consisting of subjecting the material to controlled cooling and stirring to produce special crystal growths in the fat, which are desirable to achieve the correct preparation of the chocolate or ».
  • the two processes are conveniently carried out in two separate machines, each with its own pumping and control system since control is of the essence in these processes.
  • the terms 'aerating' , 'aerator' , etc will be used herein to include bubbles containing gases other than air.
  • bubbles of nitrogen may be used.
  • a tempering and aerating assembly comprising a tempering unit having an inlet for untempered material and an outlet for tempered material, the outlet being connected to the inlet of a shear-type aerator, the aerator being positioned closely adjacent to the tempering unit whereby said temperer outlet and said aerator inlet are close-coupled to each other, a compressed gas injection connection leading into the passage connecting said temperer outlet and said aerator inlet.
  • the aerator is preferably of the kind which comprises a shear head adapted to break up into small bubbles gas which has been injected into the tempered material by way of the injection connection.
  • a pump is provided in the connection to the inlet of the temperer and provides a pressure substantially in the range 6 to 12 atmospheres at the temperer inlet.
  • the pump is preferably a positive displacement pump designed to provide a substantially constant volumetric flow rate.
  • a method of producing an aerated chocolate or couverture coating material comprises passing the material through a tempering and aerating assembly in accordance with the first aspect of the invention.
  • the illustrated tempering and aerating assembly 1 comprises a temperer 2 close-coupled to an aeration unit 3 by a short connecting pipe 4, the pipe 4 connecting the temperer outlet 5 with the aerator inlet 6.
  • the temperer 2 is of the well-known kind which comprises a cylindrical housing 7 containing various heat exchanger and stirring components driven by a motor and gearbox unit 14, the heat exchangers being supplied, as indicated by arrows 15 , with pumped water at controlled temperatures which vary according to the vertical position of the heat exchangers in the temperer.
  • Untempered chocolate (in this case) is supplied to a temperer inlet 8 at the lower end of the housing 7 by a positive displacement pump which is arranged to provide a regulated flow rate at an inlet pressure of approximately 10 bar.
  • temperer seals have to be arranged to withstand the inlet pressure which is generally higher than the usual temperer internal pressures.
  • the aerator unit 3 comprises an aerator housing 9 in which is rotatably mounted a shear head driven by an aerator motor/gearbox unit 10 through horizontal drive shaft 11.
  • An injection point 12 is provided on the pipe 4 to enable nitrogen gas to be injected into the tempered chocolate proceeding through pipe 4. It will be appreciated that in the drawing, support structures for the temperer 2 and aerator unit 3 have been omitted for clarity.
  • the aerator 9 is of the kind comprising a shearing head which causes bubbles of nitrogen injected into the chocolate stream in pipe 4 to be split up into a series of bubbles in the chocolate leaving the aerator unit by way of aerator outlet 13.
  • the bubbles may be microscopic in size.
  • the tempered and aerated chocolate leaving outlet 13 can be for production of coatings in enrobers, moulding machines etc, as conventionally applied.
  • Aerating head 9 can be of the type as sold by Tanis Food Technology B. N. , Chroomstraat, 8,3211 AS, Lelystad, The Netherlands under designation No TFT Aerator.
  • the aerator and temperer share a common housing, the outlet 5 of the temperer, and inlet 6 of the aerator being constituted by a single port in the housing.

Abstract

A tempering and aerating assembly (1) comprises a tempering unit (2) having an inlet (8) for untempered material and an outlet (5) for tempered material, the outlet (5) being connected to the inlet (6) of a shear-type aerator (3). The aerator (3) is positioned closely adjacent to the tempering unit (2) whereby the temperer outlet (5) and the aerator inlet (6) are close-coupled to each other, a compressed gas injection connection (12) leading into the passage connecting the temperer outlet and the aerator inlet. A pump provides a pressure substantially in the range 6 to 12 atmospheres at the temperer inlet.

Description

AERATED CONFECTIONERY COATINGS
This invention relates to the production of chocolate and couverture coating material particularly to the production of coatings containing gaseous bubbles, such as chocolate coatings containing bubbles of air.
Such coating materials generally have to be 'tempered' and then undergo a process of gas addition to provide the bubbles, tempering consisting of subjecting the material to controlled cooling and stirring to produce special crystal growths in the fat, which are desirable to achieve the correct preparation of the chocolate or couverture. The two processes are conveniently carried out in two separate machines, each with its own pumping and control system since control is of the essence in these processes.
This gives several problems, the main one of which is the difficulty of precisely matching the delivery rates of the two pumps. This results in complex arrangements of pressure relief valves, buffer tanks, etc, having to be provided.
Where the context admits, the terms 'aerating' , 'aerator' , etc will be used herein to include bubbles containing gases other than air. For example, bubbles of nitrogen may be used.
According to one aspect of the invention we provide a tempering and aerating assembly comprising a tempering unit having an inlet for untempered material and an outlet for tempered material, the outlet being connected to the inlet of a shear-type aerator, the aerator being positioned closely adjacent to the tempering unit whereby said temperer outlet and said aerator inlet are close-coupled to each other, a compressed gas injection connection leading into the passage connecting said temperer outlet and said aerator inlet.
The aerator is preferably of the kind which comprises a shear head adapted to break up into small bubbles gas which has been injected into the tempered material by way of the injection connection.
There is preferably no pump means associated with said passage. Conventionally an aerator would be mounted remotely from the temperer, and a pump would be provided in the connection between the temperer outlet and the aerator inlet.
According to a preferred feature of the present invention a pump is provided in the connection to the inlet of the temperer and provides a pressure substantially in the range 6 to 12 atmospheres at the temperer inlet.
The pump is preferably a positive displacement pump designed to provide a substantially constant volumetric flow rate.
According to a second aspect of the invention a method of producing an aerated chocolate or couverture coating material comprises passing the material through a tempering and aerating assembly in accordance with the first aspect of the invention.
A tempering and aerating assembly in accordance with the invention will now be described, by way of example only, with reference to the accompanying drawing which is a schematic side view. The illustrated tempering and aerating assembly 1 comprises a temperer 2 close-coupled to an aeration unit 3 by a short connecting pipe 4, the pipe 4 connecting the temperer outlet 5 with the aerator inlet 6.
The temperer 2 is of the well-known kind which comprises a cylindrical housing 7 containing various heat exchanger and stirring components driven by a motor and gearbox unit 14, the heat exchangers being supplied, as indicated by arrows 15 , with pumped water at controlled temperatures which vary according to the vertical position of the heat exchangers in the temperer.
Untempered chocolate (in this case) is supplied to a temperer inlet 8 at the lower end of the housing 7 by a positive displacement pump which is arranged to provide a regulated flow rate at an inlet pressure of approximately 10 bar.
The temperer seals have to be arranged to withstand the inlet pressure which is generally higher than the usual temperer internal pressures.
The aerator unit 3 comprises an aerator housing 9 in which is rotatably mounted a shear head driven by an aerator motor/gearbox unit 10 through horizontal drive shaft 11.
It will be appreciated that suitable drive shaft seals are required for shaft 11 to withstand the internal pressures exerted in the inlet 6 to the aerator 9.
An injection point 12 is provided on the pipe 4 to enable nitrogen gas to be injected into the tempered chocolate proceeding through pipe 4. It will be appreciated that in the drawing, support structures for the temperer 2 and aerator unit 3 have been omitted for clarity.
The aerator 9 is of the kind comprising a shearing head which causes bubbles of nitrogen injected into the chocolate stream in pipe 4 to be split up into a series of bubbles in the chocolate leaving the aerator unit by way of aerator outlet 13. The bubbles may be microscopic in size.
The tempered and aerated chocolate leaving outlet 13 can be for production of coatings in enrobers, moulding machines etc, as conventionally applied.
Aerating head 9 can be of the type as sold by Tanis Food Technology B. N. , Chroomstraat, 8,3211 AS, Lelystad, The Netherlands under designation No TFT Aerator.
The advantages of the illustrated system as compared with conventional equipment are as follows:
1. Elimination of one pump
2. Elimination of complex flow balancing arrangements.
3. Reduction in complexity of control panel.
4. Reduction in required floor area by approximately 50% .
5. Reduction in overall costs of mounting frames.
6. Minimal pipework between temperer and aerator, facilitating better process control. Existing equipment for aeration within a tempering unit is available, but as no high shear unit is fitted the level of aeration is limited (usually to below 5%) and the ability to produce microscopically-sized bubbles is also limited (this being considered a very desirable attribute in some applications of the invention) .
In a modification to the illustrated assembly the aerator and temperer share a common housing, the outlet 5 of the temperer, and inlet 6 of the aerator being constituted by a single port in the housing.

Claims

1. A tempering and aerating assembly (1) comprising a tempering unit (2) having an inlet (8) for untempered material and an outlet (5) for tempered material, the outlet (5) being connected to the inlet (6) of a shear-type aerator (3) , characterised in that the aerator (3) is positioned closely adjacent to the tempering unit (2) whereby said temperer outlet (5) and said aerator inlet (6) are close-coupled to each other, a compressed gas injection connection (12) leading into the passage connecting said temperer outlet and said aerator inlet.
2. An assembly as claimed in claim 1 in which the aerator is of the kind which comprises a shear head adapted to break up into small bubbles gas which has been injected into the tempered material by way of the injection connection (12) .
3. An assembly as claimed in claim 1 or claim 2 in which there is no pump means associated with said passage.
4. An assembly as claimed in claim 3 in which a pump is provided in the connection to the inlet (8) of the temperer.
5. An assembly as claimed in claim 4 in which the pump provides a pressure substantially in the range 6 to 12 atmospheres at the temperer inlet.
6. An assembly as claimed in claim 4 or claim 5 in which the pump is a positive displacement pump designed to provide a substantially constant volumetric flow rate.
7. A method of producing an aerated chocolate or couverture coating material comprising passing the material through a tempering and aerating assembly as claimed in any one of claims 1 to 5.
PCT/GB2000/002184 1999-06-19 2000-06-16 Aerated confectionery coatings WO2000078156A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU55425/00A AU5542500A (en) 1999-06-19 2000-06-16 Aerated confectionery coatings

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9914297.8A GB9914297D0 (en) 1999-06-19 1999-06-19 Confectionery coating
GB9914297.8 1999-06-19

Publications (1)

Publication Number Publication Date
WO2000078156A1 true WO2000078156A1 (en) 2000-12-28

Family

ID=10855640

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/002184 WO2000078156A1 (en) 1999-06-19 2000-06-16 Aerated confectionery coatings

Country Status (3)

Country Link
AU (1) AU5542500A (en)
GB (1) GB9914297D0 (en)
WO (1) WO2000078156A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1354519A1 (en) * 2002-04-18 2003-10-22 Sollich KG Procedure and device for aerating of a fat based mass, in particular of a chocolate mass
US6951660B2 (en) * 1999-04-22 2005-10-04 Apv Systems Limited Confectionery coatings
US8293313B2 (en) 2005-10-26 2012-10-23 Compagnie Gervais Danone Microfoamed fruit or vegetable puree and method for preparing same
EP2818051B1 (en) 2013-06-27 2017-06-28 Aasted ApS Process for controlling chocolate during non-production
WO2018041870A1 (en) 2016-08-30 2018-03-08 Nestec Sa Process for making micro-aerated choco-material
WO2018041884A2 (en) 2016-08-30 2018-03-08 Nestec Sa Composition, process and use
WO2018041875A1 (en) 2016-08-30 2018-03-08 Nestec Sa Aerated choco-material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1438199A (en) * 1964-05-14 1966-05-13 Procter & Gamble Aerated icing products, which do not solidify, are shelf stable and obtained with an improved product called
GB1182539A (en) * 1967-08-01 1970-02-25 Pillsbury Co Icing Composition
DE2653018A1 (en) * 1976-11-22 1978-05-24 Sollich Spezialmasch Cocoa butter processing device - with slotted and twisted discs on cylinder for fine uniform distribution of enclosed air
US4418089A (en) * 1982-02-09 1983-11-29 Simon-Vicars Limited Method and apparatus for producing a cellular food product
DE19500921A1 (en) * 1995-01-13 1996-07-18 Bindler Maschf Gebr Gmbh Co Kg Device and method for processing chocolate mass with gas volumes enclosed in the mass

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1438199A (en) * 1964-05-14 1966-05-13 Procter & Gamble Aerated icing products, which do not solidify, are shelf stable and obtained with an improved product called
GB1182539A (en) * 1967-08-01 1970-02-25 Pillsbury Co Icing Composition
DE2653018A1 (en) * 1976-11-22 1978-05-24 Sollich Spezialmasch Cocoa butter processing device - with slotted and twisted discs on cylinder for fine uniform distribution of enclosed air
US4418089A (en) * 1982-02-09 1983-11-29 Simon-Vicars Limited Method and apparatus for producing a cellular food product
DE19500921A1 (en) * 1995-01-13 1996-07-18 Bindler Maschf Gebr Gmbh Co Kg Device and method for processing chocolate mass with gas volumes enclosed in the mass

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6951660B2 (en) * 1999-04-22 2005-10-04 Apv Systems Limited Confectionery coatings
EP1354519A1 (en) * 2002-04-18 2003-10-22 Sollich KG Procedure and device for aerating of a fat based mass, in particular of a chocolate mass
US8293313B2 (en) 2005-10-26 2012-10-23 Compagnie Gervais Danone Microfoamed fruit or vegetable puree and method for preparing same
EP2818051B1 (en) 2013-06-27 2017-06-28 Aasted ApS Process for controlling chocolate during non-production
WO2018041870A1 (en) 2016-08-30 2018-03-08 Nestec Sa Process for making micro-aerated choco-material
WO2018041884A2 (en) 2016-08-30 2018-03-08 Nestec Sa Composition, process and use
WO2018041875A1 (en) 2016-08-30 2018-03-08 Nestec Sa Aerated choco-material

Also Published As

Publication number Publication date
GB9914297D0 (en) 1999-08-18
AU5542500A (en) 2001-01-09

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