IES83872Y1 - A process for manufacturing food products for final preparation at the point of use or sale - Google Patents
A process for manufacturing food products for final preparation at the point of use or sale Download PDFInfo
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- IES83872Y1 IES83872Y1 IE2003/0959A IE20030959A IES83872Y1 IE S83872 Y1 IES83872 Y1 IE S83872Y1 IE 2003/0959 A IE2003/0959 A IE 2003/0959A IE 20030959 A IE20030959 A IE 20030959A IE S83872 Y1 IES83872 Y1 IE S83872Y1
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- vessel
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- pieces
- oil
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- 235000013305 food Nutrition 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000002360 preparation method Methods 0.000 title description 5
- 239000004615 ingredient Substances 0.000 claims abstract description 40
- 239000000203 mixture Substances 0.000 claims abstract description 40
- 238000010411 cooking Methods 0.000 claims abstract description 30
- 235000013311 vegetables Nutrition 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003921 oil Substances 0.000 claims abstract description 21
- 235000019198 oils Nutrition 0.000 claims abstract description 21
- 235000002732 Allium cepa var. cepa Nutrition 0.000 claims abstract description 8
- 235000014121 butter Nutrition 0.000 claims abstract description 7
- 239000008162 cooking oil Substances 0.000 claims abstract description 6
- 235000013372 meat Nutrition 0.000 claims abstract description 6
- 235000013312 flour Nutrition 0.000 claims abstract description 5
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 5
- 239000008158 vegetable oil Substances 0.000 claims abstract description 5
- 239000011874 heated mixture Substances 0.000 claims abstract description 4
- 241000251468 Actinopterygii Species 0.000 claims description 7
- 241000234282 Allium Species 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 235000011194 food seasoning agent Nutrition 0.000 claims description 5
- 230000035900 sweating Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000004278 EU approved seasoning Substances 0.000 claims description 3
- 235000008216 herbs Nutrition 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 abstract description 3
- 235000002566 Capsicum Nutrition 0.000 abstract description 3
- 244000000626 Daucus carota Species 0.000 abstract description 3
- 235000002767 Daucus carota Nutrition 0.000 abstract description 3
- 241000758706 Piperaceae Species 0.000 abstract description 2
- 235000021307 Triticum Nutrition 0.000 abstract description 2
- 238000003303 reheating Methods 0.000 abstract description 2
- 244000291564 Allium cepa Species 0.000 abstract 1
- 241000209140 Triticum Species 0.000 abstract 1
- 241000287828 Gallus gallus Species 0.000 description 8
- 235000012054 meals Nutrition 0.000 description 5
- 239000006071 cream Substances 0.000 description 4
- 235000020989 red meat Nutrition 0.000 description 3
- 240000002234 Allium sativum Species 0.000 description 2
- 235000008534 Capsicum annuum var annuum Nutrition 0.000 description 2
- 206010034203 Pectus Carinatum Diseases 0.000 description 2
- 235000021438 curry Nutrition 0.000 description 2
- 235000004611 garlic Nutrition 0.000 description 2
- 235000014101 wine Nutrition 0.000 description 2
- 240000004160 Capsicum annuum Species 0.000 description 1
- 240000008384 Capsicum annuum var. annuum Species 0.000 description 1
- 235000007862 Capsicum baccatum Nutrition 0.000 description 1
- 244000223760 Cinnamomum zeylanicum Species 0.000 description 1
- 244000018436 Coriandrum sativum Species 0.000 description 1
- 235000002787 Coriandrum sativum Nutrition 0.000 description 1
- 235000007688 Lycopersicon esculentum Nutrition 0.000 description 1
- 239000006002 Pepper Substances 0.000 description 1
- 235000016761 Piper aduncum Nutrition 0.000 description 1
- 235000017804 Piper guineense Nutrition 0.000 description 1
- 244000203593 Piper nigrum Species 0.000 description 1
- 235000008184 Piper nigrum Nutrition 0.000 description 1
- 240000003768 Solanum lycopersicum Species 0.000 description 1
- 244000098338 Triticum aestivum Species 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 235000017803 cinnamon Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 235000014132 frozen ready meals Nutrition 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000015504 ready meals Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000015067 sauces Nutrition 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 235000020990 white meat Nutrition 0.000 description 1
- 235000020097 white wine Nutrition 0.000 description 1
Abstract
ABSTRACT Oil or butter in an amount of about (200) to (300) ml is introduced into a jacketed cooking vessel with a capacity of at least (300) litres. The oil is heated to a temperature of from (90 C) to (95 C ) by circulating steam through the vessel jacket. Dry ingredients are added to the heated oil. The dry ingredients are sweated in the oil for a period of about (5) minutes, until the temperature of the oil is from (50 C) to (60 C). Prepared fresh onion pieces are then added to the sweated dry ingredients and the mixture thus formed is sweated for about (10) minutes. Cold water is added to the vessel in the amount of from (30) to (50) times the Volume of cooking oil introduced into the vessel. The water is heated to a temperature of at least (90 C). A roux comprising about (50%) by weight vegetable oil and (50%) plain wheat flour is prepared. The roux is added to the heated mixture in an amount of from (10%) to (20%) by weight of the batch size. Vegetable pieces are added to the thickened mixture in the vessel and the vegetables are cooked over a vegetable cooking time of typically (30) minutes. There may be a number of different vegetables added which may be introduced at different stages. For example, carrot pieces may be introduced first followed (10) minutes later by mushrooms and followed a further (10) minutes later by peppers. Water is intermittently added to the mixture in a total amount of from (1%) to (10%) of the batch size during only the first (60%) of the Vegetable cooking time. The cooled mixture is packaged in pouches of a suitable size for cooking/reheating by the customer. Further food pieces such as meat pieces may be added to the pouch.
Description
"A process for manufacturing food products for final preparation at the point of or sale." The invention relates to the manufacture of food products and in particular to the large scale manufacture of food portions for final preparation at the point of use or sale.
Frozen ready—meals are widely available. In general, the organoleptic properties of taste and mouth feel of such frozen meals is inferior to a meal cooked from the raw ingredients.
This invention is directed towards providing a process for preparing food products which will facilitate preparation of a range of high quality ready meals on a large scale without the considerable inconvenience of home preparation.
Statements of Invention According the to the invention there is provided a process for preparing a food product comprising the steps of:- providing an agitated cooking vessel having a capacity to produce a batch size of at least 300 litres; introducing cooking oil or butter into the vessel; heating the oil to a temperature of from 90°C to 95°C; adding dry ingredients such as seasonings and herbs to the heated oil: sweating the dry ingredients in the oil for a period of at least 3 minutes until the temperature of the oil is from 50 to 60°C; adding cold water to the vessel in an amount of from 30 to 50 times the volume of cooking oil introduced into the vessel; heating the water in the vessel to a temperature of at least 90°C; preparing a roux comprising about 50% by weight vegetable oil and 50% flour; adding the roux to the heated mixture in an amount of from 10% to 20% of the batch size; adding additional fresh Vegetables pieces to the thickened mixture in the vessel; cooking the Vegetables in the vessel over a vegetable cooking time; intermittently adding water in a total amount of from 1% to 10% of the batch size during only the first 60% of the vegetable cooking time; transferring the cooked mixture to a vacuum cooler; cooling the mixture to a temperature of less than 5°C; and packing the cooled mixture.
In one embodiment the process comprises the steps of: adding fresh onion pieces to the sweated dry ingredients; and sweating the mixture thus formed in the heated oil for at least a further 5 minutes.
The process may comprise adding additional roux during the intermittent water addition phase.
Additional natural ingredients such as cream or wine may be added at the same time as the roux.
In one embodiment the process includes the step of emulsifying the mixture in the Vessel after addition of the dry ingredients. The mixture in the vessel after addition of the fresh onion pieces may also be emulsified. The mixture in the vessel after addition of the roux may also be emulsified. The mixture in the vessel after addition of the additional vegetables may also be emulsified.
Preferably the process comprises continuously agitating the mixture up to and including transfer to the cooler.
Preferably the mixture is also agitated during cooling.
In one embodiment there is a plurality of different additional vegetables which are added at different stages during cooking of the additional vegetables.
In one embodiment the process comprises cooling the mixture in the vessel prior to transfer to the cooler. The vessel may be a jacketed vessel, the vessel being treated by circulation of steam through the jacket and being cooled by circulation of cold water through the jacket.
In one embodiment the cooled mixture is packed in a pouch. Additional ingredients are added to the mixture in the package. The additional ingredients may be meat or fish such as fish or meat pieces.
In one embodiment the additional ingredient pieces are prepared by: adding seasoning to the additional ingredient pieces; sealing the exposed surfaces of the ingredient pieces in a heated pan; removing the sealed ingredient pieces from the heated pan; placing the sealed ingredient pieces on a cooling rack; and commencing blast chilling of the sealed ingredient pieces less than about 30 seconds after removal from the heated pan.
The ingredient pieces may be chicken pieces which are sealed at a pan temperature of about 320°C for a period of about 40 seconds.
The ingredient pieces may be red meat pieces which are sealed at a pan temperature of about 350°C for a period of about 30 seconds.
The ingredient pieces may be fish pieces which are sealed at a pan temperature of about 300°C for a period of from 25 to 40 seconds.
Detailed Description In the invention a cooking vessel having a capacity to produce a batch size of at least 300 litres, usually up to 450 litres is used. The vessel is a jacketed and agitated stainless steel cooking vessel which also has an emulsifier fitted. The system used also comprises a vacuum cooler with a transfer pipe from the cooking vessel.
Oil or butter in an amount of about 2 kgs to 3 kgs is introduced into the cooking vessel. The oil is heated to a temperature of from 90°C to 95°C by circulating steam through the vessel jacket. Dry ingredients such as seasonings, herbs, and/or garlic are added to the heated oil. White wine may also be added. This addition causes the oil to cool and the dry ingredients are sweated in the oil for a period of at least 3 minutes, generally about 5 minutes, until the temperature of the oil is from 50°C to °C.
Prepared fresh onion pieces are then added to the sweated dry ingredients and the mixture thus formed is sweated for at least a further 5 minutes, generally about l0 minutes.
Cold water is added to the vessel in an amount of from 30 to 50 times the volume of cooking oil introduced into the vessel. The water is heated to a temperature of at least 90°C.
A roux comprising about 50% by weight vegetable oil and 50% plain wheat flour is prepared. The roux is added to the heated mixture in an amount of from 10% to 20% by weight of the batch size. An average of 30kg of roux is added. The range is between 25 and 40 kgs of roux, depending on the moisture content of the vegetables.
Additional natural ingredients such as cream or sometimes wine may be added with the roux.
Fresh vegetables are prepared, for example, by cleaning, skin removal and cutting to size. The vegetable pieces are added to the thickened mixture in the vessel and the vegetables are cooked over a vegetable cooking time of typically 30 minutes. There may be a number of different vegetables added which may be introduced at different stages. For example, carrot pieces may be introduced first followed 10 minutes later by mushrooms and followed a further 10 minutes later by peppers.
Water is intermittently added to the mixture in a total amount of from 1% to 10% of the batch size during only the first 60% of the vegetable cooking time. This counteracts evaporation losses but without sacrificing quality and flavour. The amount of additional water added in this period is determined based on seasonality factors and vegetable moisture content. Additional roux may be added during this intermittent water addition phase.
During the sweating and cooking the contents of the vessel are continuously agitated.
The mixture may also be emulsified for particle attrition at the dry ingredients addition stage, the onion addition stage, the roux addition stage and/or when additional vegetables are added.
After cooking, the contents of the vessel are transferred to a vacuum cooler in which the mixture is cooled to a temperature of less than 5°C. To optimise capacity usage cold water may be circulated through the jacket of the cooking vessel prior to transfer of the mixture to the vacuum cooler.
The cooled mixture is packaged in pouches of a suitable size for cooking/reheating by the customer. Further food pieces may be added to the pouch. Such food pieces may be white meat such as chicken pieces, red meat pieces or fish pieces. The additional food pieces are first seasoned and the exposed surfaces of the pieces are sealed in a heated pan. In the case of chicken pieces the pan is heated to about °C and the chicken pieces are sealed for about 40 seconds. In the case of red meat pieces the pan is heated to about 350°C and sealed for about 30 seconds. In the case of fish pieces, the pan is heated to about 300°C and the fish pieces are sealed for about 25 to 40 seconds.
The sealed ingredient pieces are placed on a cooking rack and blast chilling of the sealed ingredient pieces is commenced about 30 seconds after removal from the heated pan.
The blast chilled meat pieces are added to the pouch.
Example A batch of 350kg of chicken curry is prepared as follows. .5kgs of butter is added to the cooking vessel as described above. The butter is heated to a temperature of from 90 to 95°C. Dry ingredients comprising 4.343kg of mild curry paste, 10kg of chopped tomatoes, O.280kg of cinnamon, 0.200kg of coriander, 0.140kg of Masala, 5.2kg of sugar, 0.608kg garlic puree and 5.2kg of chicken bullion are added to heated butter. The ingredients are sweated to a temperature of about 40°C for about 2 to 3 minutes. — 160 litres of cold water are added to the cooking vessel and the mixture is heated — 40kg of a roux comprising 50% vegetable oil and 50% cream flour is added to the water mixture. l.107kgs of tumeric is added after the roux. The mixture is emulsified for about 20 minutes. 17kg of cream are added and the mixture is further emulsified for another 2—3minutes, maintaining the temperature at 90 to °C. 0.1919kg of salt and 0.069kg of pepper are than added.
Additional vegetable pieces are then added to the thickened mixture. 40kg of chopped carrots are added and cooking continues for 5-10 minutes. 30kg of mushrooms are then added and cooking is continued for 2-3minutes. At that stage kg of onions, 10kg of red peppers and 10kg of green peppers are added.
During the first 60% of the vegetable cooking time between 5 and 12kgs of water are added intermittently depending on the moisture content of the vegetables and the texture of the sauce. Cooking is continued for a further period of about 20 minutes.
The mixture thus prepared is transferred to the vacuum cooler where it is cooled to about 4°C prior to packing into appropriately sized pouches. kg whole chicken breast meat is sealed on a pan which is preheated to about 320°C.
All sides of the chicken breast are sealed over a period of about 40 seconds. The sealed whole breast is then cut into cubes of about 20x20x20mm. The chicken pieces are laid on a pack and blast chilling commences not less than 30 seconds after removal from the pan.
The cooked chicken pieces are loaded into the pouches. The pouches are then sealed and the contents are frozen in a spiral freezer.
A range of high quality meals may be prepared in this way. The meals may be supplied frozen in vacuum-packed pouches. When defrosted, at the point of use/sale the meals may be proportioned into individual microwaveable trays. When required, the food may be heated in a microwave ready for immediate consumption.
Alternatively, the food may be heated directly whilst still in the pouch, either in an oven or by immersing in hot water and boiling. A steam oven at 100°C or a convection oven at 150°C may be used. In the case of a convection oven a bowl of water may be added to create steam.
The invention is not limited to the embodiments hereinbefore described which may be varied in detail.
Claims (1)
1. A process for preparing a food product comprising the steps of:— providing an agitated cooking vessel having a capacity to produce a batch size of at least 300 litres; introducing cooking oil or butter into the vessel; heating the oil to a temperature of from 90°C to 95°C; adding dry ingredients such as seasonings and herbs to the heated oil; sweating the dry ingredients in the oil for a period of at least 3 minutes until the temperature of the oil is from 50 to 60°C; adding cold water to the vessel in an amount of from 30 to 50 times the volume of cooking oil introduced into the vessel; heating the water in the vessel to a temperature of at least 90°C; preparing a roux comprising about 50% by weight vegetable oil and 50% flour; adding the roux to the heated mixture in an amount of from 10% to 20% of the batch size; adding additional fresh vegetables pieces to the thickened mixture in the vessel; cooking the vegetables in the vessel over a vegetable cooking time; intermittently adding water in a total amount of from 1% to 10% of the batch size during only the first 60% of the vegetable cooking time; transferring the cooked mixture to a vacuum cooler; cooling the mixture to a temperature of less than 5°C; and packing the cooled mixture. A method as claimed in claim 1 comprising the steps of: adding fresh onion pieces to the sweated dry ingredients; and sweating the mixture thus formed in the heated oil for at least a further 5 minutes. A process as claimed in claim 1 or 2 comprising adding additional roux during the intermittent water addition phase, the mixture in the vessel may be emulsified after addition of the dry ingredients, and/or after addition of the fresh onion pieces, and/or after addition of the roux, and/or after addition of the additional vegetables. A process as claimed in any preceding claim comprising cooling the mixture in the vessel prior to transfer to the cooler, the vessel may be a jacketed vessel, the vessel being heated by circulation of steam through the jacket and being cooled by circulation of cold water through the jacket. 12 A process as claimed in any preceding claim wherein the cooled mixture is packed in a pouch, the process may comprise adding additional ingredients such as meat or fish pieces to the mixture in the pouch, the additional ingredient pieces may be prepared by: adding seasoning to the additional ingredient pieces; sealing the exposed surfaces of the ingredient pieces in a heated pan; removing the sealed ingredient pieces from the heated pan; placing the sealed ingredient pieces on a cooling rack; and commencing blast chilling of the sealed ingredient pieces less than about 30 seconds after removal from the heated pan.
Publications (2)
Publication Number | Publication Date |
---|---|
IE20030959U1 IE20030959U1 (en) | 2005-04-20 |
IES83872Y1 true IES83872Y1 (en) | 2005-04-20 |
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