This invention relates generally to methods and apparatus for applying dry ingredients to a food product. More particularly, the invention relates to the application of dry ingredients to meat, meat analogs, or meat products.
Meat and meat products are popular foods that are relatively high in protein. Such meat products include sliced or shaved meats, sausages, and hot dogs, to note but a few. These products are typically mixed or combined with ingredients such as flavorings, curing agents, spices, color and texture enhancers, denaturing ingredients, and food additives for safety and freshness, among other concerns. Dry ingredients are often added to meat mixtures during the blending stage of the process or, alternatively, can be added after the cooked products are removed from the casing. As used herein, meat mixtures may include a whole muscle meat mixture, a meat batter, and a meat substitute or meat analog mixture.
Adding the dry ingredients during blending or mixing may limit the variety of product offerings to consumers. Meat products are typically produced in large batches and it may be difficult to customize a larger batch into smaller batches that have a variety of different flavors if the batch must be divided and separately mixed with the different ingredients. In addition, consumers often desire a product where the dry ingredients (such as seasonings) have been added to the surface of the meat, which can provide the product with a less-processed appearance. More particularly, consumers sometimes prefer that the outer surface of the meat product be coated with seasoning. Having the dry ingredients on the surface of the meat also may require less of the dry ingredients to provide a similar flavor experience than would be required if the ingredients were mixed into the meat mixture.
To allow the ingredients to be applied to the outer surface of the meat, it is known to mix the dry ingredients with a gel or liquid to provide a carrier for these ingredients, e.g., spices. This pre-blended gel/liquid mixture is typically applied to and adheres to the outside surface of the meat. This application of the gel/liquid mixture occurs as the meat is being stuffed into the casing, prior to cooking. When the meat product is then cooked, the gel/liquid mixture is dried and the ingredients that were applied in gel/liquid carrier are set to the outside surface of the meat. In addition to setting the ingredients on the outside surface of the meat, cooking typically removes the gel/liquid carrier to avoid having a sticky or gooey film left behind on the surface of the meat. Not only is a sticky, gooey film generally unappetizing, it can make the ingredients stick to the casing, and not to the surface of the meat, such that when the casing is removed prior to consumption of the meat, the ingredients are also removed from the meat. Since the gel/liquid drying occurs, in part, during the cooking process, cook times associated with the gel/liquid application are typically longer and hotter to ensure adequate drying time and heat. Furthermore, the casings typically used in gel/liquid applications have very large stuck holes through which moisture is allowed to escape, however, such large openings in the casing permit yield loss, in addition to moisture loss. Yield loss also is increased in the gel/liquid application due to the longer cook times.
Structurally, the stuffing apparatus employed for the known gel/liquid application includes a coextruder with a central, inner passage and a coaxial outer, annular passage such as shown in CA 2,260,390. The exit from the coextruding stuffing apparatus is inclined so that there is a delay between the exit of the meat log and the carrier from the apparatus. This delay allows the meat log to expand prior to exit of the carrier from the apparatus to avoid intermixing and blending of these ingredients in the meat.
Both coextruded streams are under pressure and the gel/liquid carrier in the outer passage typically has a viscosity that ranges from about 6.0 to 7.0. There are a number of additional concerns regarding the gel/liquid application of dry ingredients, including the elevated pressures needed to apply the gel/liquid mixtures. More specifically, the pressure of the gel/liquid mixture as it is pumped through the stuffing horn is typically around 80-90 psi. Overall, the gel/liquid application process tends to be slower due to the relatively higher viscosity of the carrier gel/liquid. Further, pressurized tanks or vessels are typically employed to move the gel/liquid carrier through the system. Further, extruding two liquids (the meat and the gel/liquid mixture) results in a slower process because of the increased complexity within the system and because the system is tailored to the slowest moving liquid that is extruded. More particularly, since the gel/liquid carrier is pumped at a lower rate due to its viscosity, the meat stream also is pumped at a lower speed to accommodate application of the spices which are pumped at a lower speed with the gel/liquid carrier.
In sum, the known gel/liquid application of the ingredients is time consuming because the drying time needed for the gel/liquid carrier and because of limitations on how fast the gel/liquid carrier can be extruded along with the meat. The amount of ingredients that can be applied is also limited with a gel/liquid application. For example, if the gel/liquid mixture is too thick, the carrier generally does not properly cook off and a film may remain on the outside surface of the meat. The gel/liquid application also requires time consuming additional steps. These include preparing the gel/liquid mixture ahead of time which further requires that precise measurements of the carrier and the various dry ingredients be undertaken. The gel/liquid mixture, however, can not be prepared too far ahead of time due to concerns with the consistency of texture and flavor varying before the mixture is coextruded with the meat product.
In another approach, the dry ingredients are applied once the meat product is cooked and the casing is removed. This alternative approach avoids the elevated cook temperatures and longer cook times associated with the gel/liquid application; however, applying dry ingredients subsequent to cooking employs an additional process that requires removal of the casing and subsequent application of the dry ingredients to the outside surface of the cooked meat product.
In one aspect, an apparatus for applying dry ingredients to meat is provided with the apparatus having an air flow device including a dry ingredient entrainment mechanism, which cooperates with a meat extruder so that the air entrained dry ingredients are generally uniformly applied on at least predetermined circumferential section, if not completely around, an outer surface of meat product as it extrudes out from the extruder. By entraining the dry ingredients in an airstream, the dry ingredients are applied to the outer surface of meat in their natural state reducing complexities associated with the use of prior gel liquid dry ingredient carrier systems. The term natural state is used to describe the dry ingredients not being exposed to a liquid or gel carrier, which could affect, for example, the consistency of the dry ingredients. In this regard, the apparatus herein allows cook times and/or temperatures to be reduced since the natural state application of the dry ingredients requires no additional cook or heat to dry the meat product from a gel liquid carrier for the dry ingredients.
More particularly, the air flow device preferably has an exit end upstream of the exit end of the meat extruder. In one form, the exit ends have gap spacings from each other in both the longitudinal meat and air travel directions and in the radial direction. A low pressure dry ingredient application zone is provided between the exit end of the air flow device and the exit of the meat extruder. The dry ingredients leave the upstream exit end of the air flow device to travel through the low pressure dry ingredient application zone, and are directed onto the meat outer surface as the meat exits the extruder exit end. In this manner, any mixing or blending of the dry ingredients into the body of the meat product is avoided or kept to a minimum.
In another form, the meat extruder has an exit extension that projects further downstream from the remainder of the exit end upstream from the extension to restrict the expansion of the meat product along the exit extension as the meat product is extruded out from the exit end. The air flow device includes a plurality of air conduits that are arranged to be aligned with the exit extension. With the exit extension, the meat product is allowed to expand due to the pressure differential between the pressure inside and outside the meat extruder as the meat product is extruded from the upstream portion of the exit end lacking the extension.
As the meat product exits from the extension, the meat product in this region will expand more gradually thus presenting a greater surface area on the outer surface along which the air entrained dry ingredients from the extension aligned air conducts will be directed for a more uniform application of dry ingredients on this section of the outer surface.
In yet another form, the meat extrusion direction and the air flow direction are generally parallel, and the exit end of the meat extruder has an outwardly tapered annular wall portion that extends obliquely to the meat extrusion and air flow directions. In this manner, the meat product is extruded along the tapered wall portion, it will begin to gradually expand radially with the gradual radial expansion continuous as the meat product exits from the extruder exit end. The gradual radial expansion creates an inclination of the meat product outer surface that extends obliquely to the air flow direction so that dry ingredients are applied over a larger area of the outer surface versus an apparatus that allows the meat product to expand previously in the radial direction orthogonal to the meat extrusion direction.
In another aspect, an apparatus for applying dry ingredients to meat is provided and includes a stuffing horn with separate, elongated flow channels. Exit ends of the elongated flow channels are configured to provide space for the dry ingredients to be applied to an exposed surface area of the meat exiting from its flow channel. Such a void space provides an open area adjacent the exit of the stuffing horn that is not filled by the meat stream and where the dry ingredients may diffuse or blow over the surface area of the meat. A number of configurations can be employed to provide a void space where the dry ingredients can be applied. In one configuration, the meat stream is depressurized after the dry ingredients are discharged from the exit end of their flow channel or channels and before application of the dry ingredients so that there is a low pressure application of the dry ingredients to the meat.
In a preferred form, the apparatus has a stuffing horn that includes a generally cylindrical outer wall and a generally cylindrical inner wall extending coaxially in the outer wall so that there is an elongate annular space between outer and inner cylindrical walls. A meat supply device provides a pressurized flow of meat product to an upstream end of the inner wall so that the meat product flows under pressure therethrough downstream to an exit end thereof. A plurality of elongate tubular members are arranged in the annular space. An air flow device provides a flow of air to upstream ends of the tubular members, and a dry ingredient entrainment mechanism provides the dry ingredients to the air flow device so that the dry ingredients are entrained in the air flow through the tubular members downstream to exit ends thereof. The tubular members are arranged in the annular spaced to be radially spaced from the inner wall and so that their exit ends are longitudinally spaced upstream from the exit end of the inner wall. In this manner, there is distinct void space or zone between the discharge ends of the tubular members and the discharge end of the inner wall that is traversed by the dry ingredients prior to engaging the meat product exiting the downstream and radially inner discharge end of the inner wall. Since the dry ingredients are under relatively low pressure as they travel through the tubular members, e.g., 1-2 psi, and must traverse the void space that is substantially open to atmospheric pressure, the dry ingredients are gently applied to the meat product outer surface greatly reducing the possibility of having the ingredients penetrate the meat product outer surface to intermix with the body thereof. Further, by gently blowing the air entrained dry ingredients through the void space or low pressure zone, the dry ingredients will be spread out across the meat product outer surface for a more uniform application of dry ingredients thereon.
In another aspect, the method for applying dry ingredients to a meat log may include introducing a meat stream into the inner elongated flow channel and introducing the dry ingredients into the outer elongated flow channel. The method may also include depressurizing the meat stream after the dry ingredients have been discharged to the application area where they are to be applied to the meat. The dry ingredients are entrained in an air stream to advance the ingredients down the conduit. The meat stream may be pumped through the inner elongated flow channel. At the exit of the stuffing horn, the dry ingredients are deposited on the outside surface of the meat stream. Applying the ingredients in a dry form reduces the required cook time and/or heat thereof, since the gel/liquid carrier is not needed. Furthermore, the dry ingredient application method permits the yield loss to be minimized by reducing the required cook time.
In another aspect, a plurality of hoses, channels, or tubes may be arranged within the conduit between the inner and outer elongated flow channels. These tubes may be distributed within the conduit to provide distinct passageways within which the dry ingredients travel through the conduit. The tubes help prevent pooling of the dry ingredients in one portion of the conduit and help direct the dry ingredients to the space where the dry ingredients are to be applied to the outside surface of the meat stream.
In yet another aspect, the dry ingredients are entrained in an air stream to advance the dry ingredients from an inlet of the stuffing horn to the end where the dry ingredients are applied to a surface area of the meat stream. To entrain the dry ingredients in an air stream a pump, such as a venturi pump, may be employed. Furthermore, if a plurality of tubes is used to move the dry ingredients through the conduit, the space between the tubes may be used to vent the air out of the casing. By one approach, each of the plurality of tubes may deliver approximately 0.1 to 0.2 ounces-per-second of the dry ingredient to the void space. In addition, a volume of approximately 0.5 to 12.0 ft3/hour dry ingredients may be advanced within the conduit.
So configured and arranged those skilled in the art will recognize that these teachings will provide for efficiently and economically applying dry ingredients to the surface of the meat by reducing the required cook time such that less yield loss is experienced. This is accomplished by removing the drying process previously used in gel/liquid applications. Furthermore, the process described herein permits a larger amount of ingredients to be applied to the meat and also allows larger ingredient particles to be applied. By applying the dry ingredients without the carrier required for the gel/liquid application, the process discussed herein gains additional flexibility. For example, unlike the gel/liquid application process, a number of different casings can be employed with these teachings, thereby making this a more flexible process than the gel/liquid process and also easier to incorporate into other applications. More particularly, while large stuck holes are needed in the casings employed with a gel/liquid application to thereby allow moisture to escape, the casings used with the teachings herein may have large or small stuck holes or may not have any stuck holes. Indeed, casings employed with the present teachings may include fibrous permeable casings such as pre-stuck casings having a variety of hole sizes from large to small, non-stuck casings, impermeable casings such as a cook-in-bag, or a co-extruded casing such as those applied to the outside surface of the meat at the bagging step, to note but a few options. Further, the teachings herein permit the meat product to be extruded along with the dry ingredients that are entrained in air such that the dry ingredients are applied as the meat product is filled into casings. As a result, the system discussed herein acquires some flexibility such that the ingredients may be applied to the meat efficiently and economically.
Furthermore, without a gel/liquid carrier, the system may be run at a much lower pressure. For example, while the gel/liquid mixture is typically pressurized at around 80-90 psi, the dry ingredients may be advanced through the stuffing horn and applied to the meat at less than 10 psi. In one illustrative application, the pressure of the dry ingredients may be around 1-2 psi. Since the elevated pressures of a system with a gel/liquid carrier requires additional safety measures, by lowering the operating pressure, the system with a dry application can be run faster and without requiring the same safety measures. Efficiencies in the dry application discussed herein also resulted from the elimination of certain steps previously required. For example, while the dry ingredients may be placed into the hopper that feeds into the stuffing horn, the gel/liquid mixture must be prepared ahead of time in a separate process prior to being introduced into the stuffing horn.
Referring now to the drawings, and in particular to
The inner elongated flow channel 14 is at least partially disposed within the outer elongated flow channel 12 and the flow channels 12, 14 may have a variety of diameters and cross-sections. It is anticipated that the inner elongated flow channel 14 may have a diameter between approximately 1.0 to 5.0-inches and the outer elongated flow channel 12 may have a diameter between approximately 2.0 to 8.0-inches, though other diameters are contemplated. In one illustrative example, the inner and outer elongated flow channels are pipes or tubes with a circular cross section, the outer elongated flow channel 12 having approximately a 4.0-inch diameter. Furthermore, the inner elongated flow channel 14 may have approximately a 3.0-inch diameter and an inner diameter of approximately 2.85-inches. As discussed below, the flow channels may be comprised of a variety of materials including stainless steal and other food grade materials.
A first inlet 22 is connected to an upstream end of the outer elongated channel 12 and a second inlet 24 is connected to an upstream end of the inner elongated flow channel 14. Further, the first inlet 22 may direct or introduce dry ingredients into the conduit 16 between the inner and outer elongated flow channels 12, 14. The second inlet 24 may direct or introduce meat into the inner elongated flow channel 14. As used herein, the meat may include a whole meat mixture, a meat batter, and a meat analog mixture, to note a few options. The second inlet 24 may be connected to a meat pump system that is configured to advance the meat through the inner opening 18 of the inner elongated flow channel 14.
The first inlet 22 is connected to a dry ingredient delivery system 26. For the dry ingredient delivery system 26, a variety of configurations are contemplated. In one illustrative embodiment, the dry ingredient delivery system 26 includes a plurality of tubes or hoses 28 to deliver the dry ingredients to the first inlet 22. In another configuration, the system 26 may include a single conduit to deliver the dry ingredients to the first inlet 22, which may or may not branch out or separate into a plurality of separate smaller conduits. The delivery system 26 may further include a bin 30 that houses a screw feed system. The screw feed system may include a single screw feeder or a series of screw feeders. The screw feed controls, at least partially, the speed with which the spice enters the stuffing horn. Furthermore, the screw feed system may include a single hopper and drive or multiple hoppers and drives. The dry ingredient delivery system 26 may also include a dry ingredient pump 31, e.g., a diaphragm pump, configured to advance the dry ingredients through the conduit located between the inner and outer elongated flow channels. By one approach, the dry ingredient pump may include a venturi-style pump 35 configured to receive the dry ingredients from a screw feeder 33 and advance the ingredients through the inlet and through the conduit. Such a venturi-style pump may move the dry ingredients downstream by entraining the at least one dry ingredient in a moving air stream. In some configurations, a plurality of dry ingredient pumps may be employed to move the dry ingredients downstream. The dry ingredients may include a wide variety of spices, flavorings, and additives for safety and freshness, to note but a few of the dry ingredients added to meat products. In one illustrative example, the dry ingredients may include paprika, pepper, cellulose, starch, salt, and sugar, among many others.
An end portion 32 of the stuffing horn is configured to create an opening or void space 34 around a portion of the meat. The end portion 32 includes first and second exits 38, 40. The outer elongated flow channel 12 has a first exit 38 and the inner elongated flow channel 14 has a second exit 40. The dry ingredients are deposited onto an outside surface of the meat at and around the void space.
The void space 34 may be created in a number of manners. As used herein, the void space is a gap that primarily provides separation between the casing and the meat where the dry ingredients can be applied to the outside surface of the meat. More specifically, the void space 34 is located adjacent the exit of the flow channel 14, which contains the meat and includes the space that is created prior to when the meat contacts the casing. The void space 34 permits application of the dry ingredients to the meat before the meat adheres to the casing. Once the casing is in contact with the outside surface of the meat, there is no room for the dry ingredients to be applied.
The void space 34 works in conjunction with the exits 38, 40 of the inner and outer flow channels 12, 14. The exit 40 of the inner elongated flow channel 14 allows the meat stream to depressurize prior to exposure to the void space 34 or exposure to the dry ingredients. For example, the exit 40 may permit the meat to expand prior to exposure to the void space 34 or may allows the meat stream to move in a direction away from the void space 34. Therefore, the void space 34 remains at least partially open and free of the meat stream such that the meat stream does not entirely fill the void space 34. Such a depressurization of the meat stream occurs prior to the application of the dry ingredients. By depressurizing the meat and/or allowing it to expand, the meat stream achieves a more laminar flow that is less turbulent. If the back pressure of the meat stream is too high, in some cases, the meat stream can back up and flow up into the dry ingredient tubes or channels 52 that are disposed in conduit 16. Further, even if the meat stream does not create excessive back pressure, it can fill the casing too quickly such that there is no room for the dry ingredients to be applied to the surface of the meat. By allowing the meat stream to depressurizing prior to exposure to the dry ingredients, the risk of having the meat stream fill the casing too quickly or back up into the dry ingredient tubes 52 is greatly decreased. Thus, the dry ingredients have an opportunity to be applied to the surface of the meat stream.
Also, the void space 34 allows the dry ingredients to spread out such that they can blow, expand, or diffuse over a larger portion of the surface area of the meat stream. By having a separation between the casing and the meat, the dry ingredients are free to flow and become applied to the outside surface of the meat. The void space 34 is, in part, created by having the meat stream expand or depressurize prior to exposure to the dry ingredients and, thus, the dry ingredients are able to expand or diffuse to cover a greater portion of the surface area of the meat stream. Also, the void space eliminates or greatly decreases the back pressure on the dry ingredient stream and allows the dry ingredients sufficient time to contact the surface of the meat prior to the meat contacting the casing. Further, by allowing the dry ingredients to be applied to the surface of the meat at the exit of the inner elongated flow channel, the dry ingredients are not merely mixed into the meat stream.
Several examples of void spaces 34 are provided herein. To produce the void space 34, the meat stream may expand in a uniform manner or the meat may expand in an asymmetrical manner. By one approach, the end portion 32 of the stuffing horn at second exit 40 includes an inner elongated flow channel 14 that terminates asymmetrically (such that the meat stream expands asymmetrically). In another illustrative approach, the second exit 40 of the inner elongated flow channel 14 has an expanding diameter (such that the meat stream expands consistently around the circumference of the inner elongated flow channel). By another approach, the void space 34 is partially created by staggering the termination points of the inner and outer elongated flow channels. More particularly, the second exit 40 may terminate upstream or down stream of the first exit 38 of the outer elongated flow channel 12. For example, the inner elongated flow channel may extend past the end of the outer elongated flow channel such that the outer elongated flow channel appears set back. Further, such a configuration may be incorporated into one of the other configurations. For example, the asymmetrical exit of the inner elongated flow channel or the expanding diameter of the inner elongated flow channel may have an outer elongated flow channel that is set back from the inner elongated flow channel.
Turning now to
As shown in
While the illustrative embodiment of
The inner and outer elongated flow channels illustrated in
The configuration of the stuffing horn and the termination points of the flow channels may depend on the desired final meat product. As mentioned above, the void space 34 that is created is affected by the configuration of exit 40. As illustrated in
Turning now to
As shown in
The configuration of the guard piece including the shape and size may depend on the desired final meat product. More particularly, in the asymmetrical horn configuration, the guard piece permits a void space to be created adjacent to the extended portion. In one illustrative embodiment, the void space is created at the extended portion by allowing the meat to expand in the direction opposite the guard piece such that, when the extended portion terminates, the meat will not rapidly expand but will slowly expand and permit the dry ingredients to apply on the outer surface of the meat, as opposed to merely being mixed with the meat.
As mentioned, the guard piece may have a variety of configurations and it is anticipated that the extended portion may extended around the circumference of the meat in a variety of configurations.
It is anticipated that the guard piece may be manufactured in a variety of manners. For example, the guard piece may be a separate piece that is welded or otherwise attached to the inner elongated flow channel. Alternatively, the guard piece may be of one piece construction with the inner elongated flow channel.
As discussed above, the asymmetrical exit can be configured in variety of manners (guard piece and slated tip, to note but two options). Further, the asymmetrical exit may be configured to permit the dry ingredients to be deposited on the meat product exiting the inner elongated flow channel in a variety of configurations, depending on the configuration of the extended portion and how far it extends around the circumference of the inner flow channel. For example, the asymmetrical exit may permit less than 360° of the circumference of the surface of the meat product to have dry ingredients deposited thereon. In another configuration, the asymmetrical exit is configured to permit the dry ingredients to be deposited on less than about 270° or 180° of the circumference of the meat product. The extended portion of the inner elongated flow channel affects how quickly the meat stream depressurizes and in what direction the meat stream expands.
The desired coverage of the dry ingredients may depend on the desired final meat product. In addition, placement of the hoses or tubes 352 may also affect the coverage of the desired final product. Since the asymmetrical exit permits less than 360° of the circumference of the surface of the meat product to have dry ingredients deposited thereon and the expanding diameter allows 360° coverage, if desired. The stuffing horn configuration employed may depend on the desired final product.
also illustrate a plurality of hoses 352 around the inner elongated flow channel 314. By having the dry ingredients separated into several hoses 252, 352, the dry ingredients are less able to pool into one area of the conduit 216, 316. The hoses 252, 352 are configured to deliver the dry ingredient through the conduit between the inner an outer elongated flow channels from the inlet to the exit. By one approach, hoses 252, 352 may have an inside diameter of between about 0.2 to 0.5-inch. In one illustrative embodiment, the dry ingredient hoses 252, 352 have an inside diameter of approximately 0.375-inch. Further, the hoses may have an air flow of between approximately 25- to 65-standard-cubic-feet-per-hour. In one illustrative approach, the air flow in the dry ingredient hoses is approximately 45-standard-cubic-feet-per-hour.
The stuffing horn 10 may also incorporate a diffuser positioned approximate the first and second exits of the flow channels. The diffuser may help spread the dry ingredients out over the outer surface of the meat. A variety of diffuser elements are contemplated. The diffuser elements at the end of the dry ingredient channels 52 permit the dry ingredients to diffuse over a larger portion of the surface area of the meat stream.
Turning now to
The diffuser element having a somewhat flattened end 78 is also illustrated in
As mentioned, the diffuser element may include a diffuser nozzle, as illustrated in
It is anticipated that the stuffing horn, including the inner and outer elongated channel and the hoses, may be comprised of a variety of materials. In one illustrative embodiment, the stuffing horn is comprised of food grade material such as, for example, stainless steel, titanium, titanium alloy, aluminum, aluminum alloy, a plastic material such as Delrin, and certain composite materials. Furthermore, the dry ingredient hoses or tubes may be welded to the flow channels to ensure proper placement of the hoses within the conduit. In addition, the hoses or tubes may be machined out a single piece of metal or other material or attached via a clip or retainer.
An alternative configuration of a stuffing horn is illustrated in
In
As mentioned above, the void space 34 works in conjunction with the exits 38, 40 to permit expansion of the meat stream. By one approach, the void space is created, in part, by allowing the meat to expand prior to the end of the channels such that, when the inner elongated flow channel terminates, the meat does not rapidly expand but slowly expands so that the dry ingredients may apply to the outer surface of the meat, as opposed to mixing with the meat, which can occur when the meat rapidly expands. More specifically, the expansion of the meat results in a depressurizing of the meat stream such that the void space 34 is not rapidly filled with the meat stream when the meat stream reaches the exits 38, 40 and the void space 34. By having the void space 34 remain free of the meat stream, the dry ingredients may expand and diffuse to cover a larger portion of the outside surface of the meat stream prior to the meat contacting the casing. The configuration of the stuffing horn and the void space 34 may depend on the desired final meat product. The meat stream may expand in a uniform manner or the meat may expand in an asymmetrical manner and, thus, the dry ingredients may be applied uniformly around the meat stream or may be applied asymmetrically around only a portion of the meat stream.
An example of the configuration permitting uniform expansion of the meat stream is illustrated in
An example of the configuration permitting asymmetrical expansion of the meat stream is illustrated in
The various configurations are further illustrated in
Turning now to
Method 100 further includes introducing 102 dry ingredients into a dry ingredient hopper that is connected to a screw feed for delivery of the dry ingredients to an inlet connected to an outer elongated flow channel of the upstream end of a stuffing horn. Further, the inner elongated flow channel may be substantially disposed within the outer elongated flow channel such that an intermediate conduit is disposed between the two flow channels. The introduction 102 of the dry ingredients into the dry ingredient hopper may further include pumping the dry ingredient into the stuffing horn.
Introducing 102 the ingredients into a dry ingredient hopper may further include entraining the dry ingredients into an air stream to move the dry ingredients from the inlet to the exit of the stuffing horn where the dry ingredients will be applied to the outside surface of the meat product. A venturi-style pump may be employed to entrain the dry ingredients into an air stream. More particularly, a venture-style pump may be positioned at an exit of a screw feeder of the hopper. Depending on the desired final product, the air stream having the dry ingredients entrained therein may have an air flow of approximately 15- to 25-ft3/hour.
As illustrated in
The method 100 for applying dry ingredients to a meat product may also comprise pumping 104 the meat stream downstream of the inlet of the inner elongated flow channel such that the meat may advance through the opening within the inner elongated flow channel to the exit of the stuffing horn.
Method 100 also includes depositing 106 the dry ingredients onto an outside surface of the meat stream at a downstream end of the stuffing horn at a void space that is created around the meat stream. The dry ingredients are deposited 106 onto the meat stream surface prior to the meat stream contacting the casing. Prior to depositing 103 the dry ingredients, method 100 may further include diffusing 105 the dry ingredients. Diffusing 105 the dry ingredient helps spread the dry ingredients over the outside surface to avoid pooling of the dry ingredients such that the ingredients are not concentrated over a single area of the surface of the meat. The method 100 further includes stuffing 107 the meat stream with the applied dry ingredients into a casing such as those casings mentioned above.
Those skilled in the art will recognize that a wide variety of modifications, alterations, and combinations can be made with respect to the above described embodiments without departing from the scope of the invention, and that such modifications, alterations, and combinations are to be viewed as being within the ambit of the inventive concept.
This application claims the benefit of U.S. Provisional Application No. 61/487,854, filed May 19, 2011, which is hereby incorporated by reference in its entirety.
Number | Date | Country | |
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61487854 | May 2011 | US |