The present invention relates to a method for milking dairy animals and manufacturing cheese or a rennet-free dairy product from the milk obtained and to a milking machine for milking dairy animals coupled to a production line for manufacturing cheese or a rennet-free dairy product.
The expression rennet-free milk product is understood to mean a product other than cheese whose main ingredient is milk and which has been obtained by processing milk. The term rennet is also intended to include lactic ferment for acidulating and curdling milk.
Such a method and milking machine are known from for example EP 0 666 024 A1, see Claim 7 thereof.
A drawback of the known method and milking machine is, inter alia, that the end product is not readily traceable.
It is an object of the present invention to provide a method which removes said drawback at least partly. To this end, the invention provides a method according to claim 1, in particular a method for milking dairy animals and manufacturing cheese or rennet-free dairy product from the milk obtained, wherein the method comprises the following steps:
a) milking a well-defined, measured amount of base milk which satisfies certain quality standards and which is not mixed with other milk;
b) manufacturing cheese or rennet-free dairy product directly from the base milk obtained, by means of a fully automatic production line.
Due to the fact that the entire well-defined amount of milk undergoes every process step, the end product is reliably traceable. In addition, the direct production ensures a straightforward process without expensive separate transportation and flushing lines.
In an advantageous embodiment of the invention, the well-defined, measured amount of base milk is obtained from one dairy animal or from a predetermined group of dairy animals. This ensures an optimum traceability of the end product (such as cheese, ice cream or yoghurt).
In a further advantageous embodiment of the invention, the base milk is obtained using a fully automatic milking machine (milking robot). This offers many advantages. Milk production takes place throughout the day, so base milk is always available. By directly transporting the milk away, it is already at the correct temperature for a good rennet action if cheese is being manufactured. In addition, the milk may be processed directly without loss or cooling/heating.
It is advantageous if the production line comprises a number of separate processing locations where intermediate products are generated and/or treated, wherein the transportation between the processing locations and the mechanical handling of the base milk, the intermediate products and the cheese or rennet-free milk product in the processing locations is performed by means of a fully automatic robot vehicle (robotised automatic guided vehicle) which is provided for the purpose. This is not only highly efficient, but also very user-friendly. In order to produce the rennet-free milk product, any dairy-processing means which is known per se, such as a pasteurizer, homogeniser, coagulation machine or skimmer, may be situated at this processing location.
It is furthermore advantageous if, at a selection location of the production line, the milk obtained is distributed over a number of transport vessels for the base milk and a separation vessel for separating off any unsuitable milk which does not meet the quality standards which have been set. In this way, it is easy to generate the well-defined amounts of base milk.
It is particularly advantageous if the transport vessels containing the base milk are transported to a mixing location of the production line by means of the fully automatic robot vehicle. This is a highly efficient implementation.
It is advantageous if lactic ferment and/or calcium chloride and/or rennet are added to the base milk at the mixing location, wherein the latter is stirred by means of a drivable stirring means and is converted into curd with whey. As a result thereof, the automatic cheese production gets underway. There is thus no other milk which is admixed in the mixing location.
In addition, it is advantageous if, in the case of cheese production, transport vessels containing the base milk which has been converted into curd with whey are transported to a cutting location of the production line by means of the fully automatic robot vehicle. This is again a very efficient implementation.
Preferably, the curd with whey is cut into cubes by means of automatic cutting means at the cutting location, following which the whey is pumped off by means of automatic pumping means. These automated steps are very efficient and user-friendly.
In an embodiment, the entire contents of every transport vessel are transferred to a filter tray by means of the fully automatic robot vehicle in a filtration location to allow whey to drain from the curd. Again, this is a very efficient implementation.
Preferably, the whey is then expressed from the curd by means of automatic pressing means. Again, this is a very efficient implementation.
In a further embodiment, the entire contents of every filter tray are transferred to an individual brine tray in a brining location by means of the fully automatic robot vehicle in order to brine the curd in brine, so that it is converted into cheese. In this way, a traceable cheese product is produced in an efficient manner.
In yet a further embodiment, the entire contents of every filter tray are transferred to a resting tray in a resting location by means of the fully automatic robot vehicle and are then transferred in their entirety to an individual brine tray in a brining location by means of the fully automatic robot vehicle in order to brine the curd in brine, so that it is converted into cheese. The time spent in the resting tray has a positive effect on the cheese production.
Preferably, the entire contents of every brine tray are transferred to a storage location by means of the fully automatic robot vehicle to allow the cheese to mature further. Yet again, this is very efficient implementation.
In a further embodiment, the cheeses in the storage location are turned regularly by means of the fully automatic robot vehicle. Again, this is a very efficient implementation.
It is advantageous if the cheeses in the storage location are provided, by means of the fully automatic robot vehicle, with a label containing information about the composition of the cheese and/or about the dairy animal or the dairy animals from which the base milk stems. In this way, a traceable end product is produced in a user-friendly way.
Preferably, transport vessels and/or filter trays and/or brine trays are cleaned in a cleaning location by means of the fully automatic robot vehicle. Again, this is a very efficient implementation.
It is highly advantageous if the salt content of the brine is monitored in the brine trays by means of a salt sensor. In this way, the process may be monitored in an optimum manner.
Preferably, the residence time of the intermediate product in the brine tray is controlled by means of the measured salt content. This yields excellent results.
It is a further object of the present invention to provide a milking machine which at least partly removes said drawback. To this end, the invention provides a milking machine according to Claim 21, in particular a milking machine for milking dairy animals coupled to a production line for manufacturing cheese or rennet-free dairy product, wherein the cheese or rennet-free dairy product is produced from a well-defined, measured amount of base milk which has been obtained beforehand by means of the milking machine and which meets certain quality standards and is not mixed with other milk, which production line is fully automatic and comprises a number of separate processing locations where intermediate products from the base milk are generated and/or treated, wherein the transportation between the processing locations and the mechanical handling of the base milk, the intermediate products and the cheese or rennet-free dairy product in the processing locations takes place by means of a fully automatic robot vehicle (robotised automatic guided vehicle) which is provided for the purpose.
Due to the fact that the entire well-defined amount of milk undergoes every process step, the end product is reliably traceable. In addition, the direct production ensures a straightforward process without expensive separate transportation and flushing lines. The fully automatic robot vehicle ensures an efficient production process.
In an advantageous embodiment of the invention, the milking machine is a fully automatic milking machine (milking robot). This offers many advantages. Milk production takes place throughout the day, so base milk is always available. By directly transporting the milk away, it is already at the correct temperature for a good rennet action if cheese is being manufactured. In addition, the milk may be processed directly without loss or cooling/heating.
Preferably, the fully automatic robot vehicle is provided with a navigation system. This makes a quick and efficient process possible.
In a further embodiment of the invention, the fully automatic robot vehicle is provided with at least one gripper means. This facilitates a number of process steps.
It is advantageous if a selection location in the production line is provided with a number of transport vessels for the base milk and a separation vessel for the optional removal of unsuitable milk which does not meet certain quality standards. In this way, it is easy to produce the well-defined amounts of base milk.
It is also likewise advantageous if the fully automatic robot vehicle is suitable for transporting the transport vessels with the base milk to a mixing location which is provided in the production line. This is a very efficient implementation.
Preferably, means are provided at the mixing location in the case of cheese production for adding lactic ferment and/or calcium chloride and/or rennet to the base milk, wherein a drivable stirring means is provided for stirring the base milk, wherein the latter is converted into curd with whey. As a result thereof, the automatic cheese production gets underway. At the mixing location, no other milk is stirred in.
It is particularly advantageous if the fully automatic robot vehicle is suitable for transporting the transport vessels with the base milk converted into curd with whey to a cutting location which is provided in the production line. This is, again, a very efficient implementation.
Preferably, automatic cutting means are provided at the cutting location for cutting the curd with whey into cubes, as well as automatic pumping means for pumping off the whey. This makes it possible to use automated steps which are very efficient and user-friendly.
It is advantageous if the fully automatic robot vehicle is suitable for transferring the entire contents of every transport vessel to a filtration location which is provided in the production line and comprises filter trays to allow the whey to drain from the curd. Again, this is a very efficient implementation.
Preferably, automatic pressing means are provided (for example at the filtration location) for subsequently expressing whey from the curd. Again, this is a very efficient implementation.
It is advantageous if the fully automatic robot vehicle is suitable for transferring the entire contents of every filter tray to an individual brining location which is provided in the production line and comprises individual brine trays for soaking the curd in brine, so that these are converted into cheese. In this way, a traceable cheese product is produced in an efficient manner.
In a further embodiment of the invention, the fully automatic robot vehicle is suitable for transferring the entire contents of every filter tray to a resting location which is provided in the production line and comprises resting trays for the intermediate products, and the fully automatic robot vehicle is furthermore suitable for transferring the entire contents of every resting tray to an individual brining location which is provided in the production line and comprises individual brine trays for soaking the curd in brine, so that these are converted into cheese. The time spent in the resting tray has a positive effect on the cheese production.
Preferably, the fully automatic robot vehicle is suitable for transferring the entire contents of every brine tray to a storage location which is provided in the production line for maturing the cheese further. This is again a very efficient implementation.
In yet a further embodiment, the fully automatic robot vehicle is suitable for regularly turning the cheeses in the storage location. This is again a very efficient implementation.
It is advantageous if the fully automatic robot vehicle is suitable for providing the cheeses in the storage location with a label containing information about the composition of the cheese and/or about the dairy animal or the dairy animals from which the base milk stems.
In this way, a traceable end product is produced in a user-friendly way.
In yet a further embodiment, a cleaning location is provided in the production line for cleaning transport vessels and/or filter trays and/or brine trays by means of the fully automatic robot vehicle. This is again a very efficient implementation.
It is particularly advantageous if a salt sensor is provided in the individual brine trays for monitoring the salt content of the brine. In this way, the process may be monitored in an optimum manner.
Preferably, the individual brine trays are provided with means for controlling the residence time of the intermediate product in the brine tray by means of the measured salt content. This has proved to give excellent results.
It is advantageous if the salt sensor is a conductivity sensor. This is an efficient implementation.
The invention (both the method and the milking machine with the automatic production line for cheese) will be explained below by means of one or more exemplary embodiments and drawings, in which:
With the method for the milking of dairy animals and the manufacturing of cheese or rennet-free milk product from the milk obtained according to the invention, a well-defined, measured amount of base milk which meets certain quality standards and which is not mixed with other milk is obtained. Subsequently, cheese or rennet-free milk product is manufactured directly by means of a fully automatic production line from the base milk obtained.
The well-defined and measured amount of base milk, the origin of which is identified, may be obtained from one dairy animal or from a predetermined group of dairy animals. In this way, the origin of the end product, cheese or rennet-free milk product, is traceable in an optimum manner: the cheese or rennet-free milk product can directly be associated with the dairy animal or with the dairy animals from which the milk obtained originates.
In the manufacturing process according to the invention, every process step (such as will be explained: transportation from the milking robot, producing the curd, microfiltration, pressing, soaking in brine) is carried out with the same milk batch which stems from one single milking. Transportation to the various processing locations and processing takes place by means of a fully automatic robot vehicle with gripping arms. In this way, a unique cheese or rennet-free dairy product may be produced from each batch.
It is advantageous if the base milk is obtained using a fully automatic milking machine (milking robot). This is capable of supplying base milk throughout the day which can then be processed immediately in the automatic production line while still fresh to produce cheese or rennet-free milk product.
As will be explained below, the production line comprises a number of separate processing locations where intermediate products are generated and/or treated, where the transportation between the processing locations and the mechanical handling of the base milk, the intermediate products and the cheese or rennet-free milk product in the processing locations takes place by means of a fully automatic robot vehicle (robotised automatic guided vehicle) provided for the purpose.
Preferably, the batch milk in every transport vessel 3, 4 originates from one cow or from a predetermined, well-identified group of cows: the end product (a small cheese) can then be traced back to that separate cow or that well-defined group of cows.
Of course, if there is too little milk for a batch, this milk may be returned to the central milk-collecting vessel 2, as may a possible excess of milk after a batch has been filled.
When the milk has reached the correct temperature (approx. 28° C.), the milk may be converted to curdle. In this case, lactic ferment and rennet are added to the milk. Rennet is an enzyme which causes the proteins in the milk to coagulate. Lactic ferment is a concentrate from lactic ferment bacteria which turns milk sugar (lactose) into lactic acid, as a result of which the cheese is able to mature well. In addition, the type of lactic ferment partly determines the flavour and the aroma of the cheese and the formation of holes. In addition, the acidification of the milk also stimulates the curdling.
In addition, it is also possible for calcium chloride and/or colourants and/or herbs to be added according to a specific recipe. Furthermore, cooling or heating may be carried out in order to achieve an ideal temperature, for example by means of a cooling or heating spiral (not shown) which is known per se.
With the production of a rennet-free milk product, additives such as colourants and bacteria may also be added at the mixing location.
Subsequently, the last remainder of whey is expressed from the curd by means of automatic pressing means.
Alternatively, pressing the curd further may be performed directly on the curd in the microfilter trays 14. In this case, fewer operations are required.
It is also possible to skip this resting location and to process the whole cheeses 19 further directly from the cheese trays 16 (or even directly from the filter trays 14, after pressing them there).
In addition, the cheeses 26 in the storage location may be provided, by means of the fully automatic robot vehicle 22, with a label containing information about the composition of the cheese and/or the dairy animal or the dairy animals from which the base milk was obtained. This results in an individual, perfectly traceable cheese. Not only can the label be used to indicate which individual cow or group or family of cows the cheese stems, but it may also contain data about the specific composition or further particulars, such as specifically the feed for the respective cow, or whether the cow is a cow that has recently calved or is in late lactation, etc.
It is also possible to apply a layer of wax or another coating to the cheeses 26 in the storage location by means of the fully automatic robot vehicle 22.
As has been described, the production line is fully automatic and comprises a number of separate processing locations where intermediate products from the base milk are generated and/or treated, wherein the transportation between the processing locations and the mechanical handling of the base milk, the intermediate products and the cheese in the processing locations is performed by means of the fully automatic robot vehicle 22 (robotised automatic guided vehicle) which is provided for the purpose. Preferably, the fully automatic robot vehicle 22 is provided with a navigation system. By means thereof, the vehicle is able to perform all the necessary movements and displacements in an efficient manner.
Finally,
Preferably, a salt sensor is provided in the individual brine trays 21 for monitoring the salt content of the brine. In addition, means are provided near the individual brine trays 21 for controlling the residence time of the intermediate product in the brine tray 21 by means of the measured salt content. The salt sensor is, for example, a conductivity sensor (not shown) which is known per se. In this way, it is possible partly to determine the final desired flavour of the cheese exactly in accordance with the recipe.
Thus, the fully automatic production line has been described, including the selection location, the mixing location, the cutting location, the filtration location, the pressing location, the resting location, the brining location, the storage location and the cleaning location. The various vessels and trays pass through these locations in order to produce the end product cheese. Typically, the system may comprise two transport vessels 3, 4, four filter trays 14, eight cheese trays 16, eight resting trays 20, and approximately 75 brine trays 21.
As has already been described above, the resting locations may be omitted or be combined with the brining locations for the sake of clarity.
Number | Date | Country | Kind |
---|---|---|---|
2022833 | Mar 2019 | NL | national |
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/NL2020/050203 | 3/26/2020 | WO | 00 |