The invention relates to the field of methods and devices used to produce cheese.
More precisely, the invention relates to such methods and devices used to produce cheese, particularly soft and fresh cheeses.
For a long time cheese was produced by hand and was only industrialized relatively recently. The industrial methods are used to produce cheese on a large scale. The methods used for small- or medium-sized productions remain relatively crude. However, certain requirements, particularly those resulting from the regulatory provisions imposed by the European Union, impose standardization in cheese production mainly in order to have improved control over the composition and hygiene level.
Various methods and devices have already been proposed in the prior art to rationalize, standardize and optimize/the different production stages of fresh and soft cheeses that can be implemented on a small or medium scale.
In this context reference may be made to the method and device described in French patent FR-2 533 411 and filed by the present applicant. The technique described in this patent proposes a device for producing soft or fresh cheeses comprising at least one set of perforated moulds positioned in a chamber provided with means for draining whey. The device is also provided with means for distributing the mixture of milk, rennet and ferments in the perforated moulds. Once the milk has been curdled the whey is drained off by the drainage means provided for this purpose and the curds are recovered after the moulds have been removed from the chamber and the curds released from the moulds. The curds are then put into a curing room to be changed into cheese.
The main advantage offered by this type of device is to enable the production of fresh or soft cheeses to be standardized under excellent food hygiene conditions.
Moreover, this type of device can be produced as a mobile unit that is both easy to transport and use, particularly in countries where agriculture is still performed traditionally.
It should be noted that it is generally preferable to be able to produce a maximum number of cheeses in any given location. The moulds of the device described above are, however, separated from each other by relatively large gaps to enable the curds to be separated when the curds are released from the moulds onto a rack. This type of device therefore presents a relatively low ratio of space occupied to curds produced.
The main aim of the present invention is to propose an improvement to this type of device that increases the number of curds produced for a device of given volume.
Another aim is to produce such a device that is extremely easy to use and that, where appropriate, can dispense with the use of any electrical means.
A further aim of the invention is to propose such a device that can be produced at reasonable cost.
Yet another aim of the invention is to disclose such a device that may be simply produced as a mobile unit that is easily transportable.
These aims are achieved by the invention that relates to a device for producing soft or fresh cheeses comprising at least a first set of perforated moulds and at least a second set of perforated moulds positioned in a chamber provided with means for draining whey characterized in that said first and second sets of moulds are designed to be inserted into each other.
It should be noted that the term “sets of moulds” in the present application refers to an assembly of several moulds that are structurally connected to one another.
The present invention proposes a new device that takes advantage of the space between the moulds, which was hitherto unused, to accommodate the moulds. It is therefore possible to increase the capacity of the existing devices described above.
In one preferred version of the invention that is more complex but of particular interest the device is characterized in that said first and second sets of moulds are designed to be inserted head to foot in order for each to operate in conjunction with at least one removable end rack, said chamber being provided with rotating means and a surface constituting a removable base.
In a preferred version of the invention said first and second sets of perforated moulds are mounted to slide in said chamber which enables them to be removed easily from the chamber.
Several types of devices can be envisaged for rotating the chamber. However, in one particularly interesting version the means used to rotate the chamber are means for pivoting said chamber around an axis. Advantageously said means could be manually actuated to simplify production of the device and increase its field of use.
In order to occupy virtually all the volume in the chamber the moulds of the first set have, advantageously, a transverse cross-section that essentially matches that of the second set. Said cross-sections may be in one of many shapes. For instance, the moulds may have a square or rectangular transverse cross-section. In another version moulds are used that have a hexagonal transverse cross-section. In yet another embodiment a first set of moulds could be used that have a square or rectangular transverse cross-section while the second set of moulds have an octagonal transverse cross-section. In general, any type of cross-section(s) could be used provided it enables the perforated moulds to occupy the maximum volume in said chamber.
The invention also relates to a method for producing cheese using a device such as that described above, the method comprising the following stages that consist in:
It should be noted that the surface constituting the base may be disconnected before or after the chamber has rotated.
According to a preferential aspect of the invention the method comprises additional stages that consist in sliding the first and second sets of moulds before disconnecting said racks.
It should be noted that in another embodiment, which enable smaller cheeses to be produced with less milk, the height of the moulds of the first set and that of the moulds of the second set is more or less half the height of said chamber, said moulds of the second set have a perforated base whereas each end of the other mould(s) is open and the device comprises an intermediary rack provided with apertures the size of the cross-section of the moulds of the second set capable of operating in conjunction with one end of the moulds.
In this configuration the method for using such a device comprises the following steps that consist in:
Various methods may be envisaged to create the sets of moulds used in the present invention. However, the sets of moulds are preferably constituted by associating matching plastic plates that form half-moulds created by thermoforming. The plate halves may, if required, be connected to the device using the fastening means provided on the drainage racks or chamber. The plates can be easily cleaned either in situ or once they have been disconnected from the chamber. In order to clean the plates in situ the moulds created by associating said matching plates have inter-mould passages that enable the cleaning products to circulate easily.
Finally, it should be noted that the invention also relates to a system for cutting coagulum that can, if appropriate, be used with the device of the invention. This type of system for cutting coagulum consists of a horizontal support on which a set of vertical rods is fastened perpendicular to said support and provided with wires in a star configuration and means to set said rods rotating. The rotating rods cut the coagulum in the cheese paste inserted in the various moulds.
Other advantages of the present invention will be better understood from the following description. The description is of a non-limitative embodiment and refers to the attached figures where:
Referring to
The entire surfaces of moulds of first set 1 and moulds of second set 2 are perforated to enable the milk fluids used to produce the cheese to drain away.
In the position of the device shown in
It should also be noted that chamber 3 is provided with whey drainage means 4 in the shape of a simple tap and is fitted with a surface constituting base 6.
The device can also be fitted with automatic means (not shown) for distributing the mixture of milk, rennet and ferments used to produce the cheese.
The method for using this type of cheese production device is described below in reference to
In the first phase of the method, chamber 3 is filled with a mixture of milk, rennet and ferments. The mixture is shown by wide hatched lines in
The mixture is left in the chamber until curds 12 form, as shown in
The whey is then drained away by drainage means 4 provided for this purpose. The curds then lie on the base of chamber 3.
Firstly, the curds in moulds 20a, 20b, 20c of set 2 are removed. For this purpose, rotating means 5, which in this configuration consist of means for pivoting around an axis as shown by circular arrow 13 in
The curds are then removed from set 1 of moulds 11a, 11b, 11c by actuating means 5 provided for this purpose to pivot chamber 3, as shown in
This type of device therefore optimizes the volume contained within chamber 3 by increasing the number of cheeses that can be produced from the mixture of milk, rennet and ferments deposited in said chamber. It is clear that the invention enables all the space to be taken up by moulds 11a, 11b, 11c, 20a, 20b, 20c of the two sets of moulds.
It should be noted that in the present embodiment the moulds have a square transverse cross-section as shown in
Another embodiment of the invention is shown in
In this embodiment the device of the invention comprises a chamber 3 in which a first set of moulds 11a, 11b and 11c (connected together) are provided and a second set of moulds 20a, 20b and 20c (connected together) that is inserted in the first set of moulds in order to occupy virtually all the volume contained within chamber 3. Once the milk has curdled the whey is drained off by means 4 (the whey could also be drained by turning chamber 3 upside down). This type of embodiment is very simple to use and transport.
In the embodiment shown in
Both the lower and upper ends of the first set of moulds 11a, 11b, 11c are open whereas the upper section of moulds 20a, 20b, 20c of the second set are open and have a perforated lower base.
The first set of moulds 11a, 11b, 11c is inserted head to foot in the second set of moulds 20a, 20b, 20c. These two sets of moulds are designed to operate in conjunction with the two drainage racks for the first set and a rack for the second set.
It should be noted that chamber 1 is provided with means 4 for draining the whey and is fitted with a removable base 6.
The method for using this type of device is as follows:
In the first phase chamber 3 is half filled with a mixture of milk, rennet and ferments. The mixture is shown by wide hatched lines in
The whey is then drained away by drainage means 4 provided for this purpose. The curds then lie on the base of chamber 3.
The second set of moulds 20a, 20b, 20c is then raised and fastened by any suitable means (not shown) to the top of chamber 3. An intermediary drainage rack 2b is then positioned half way up chamber 3. Drainage rack 2b is provided with apertures the size of the cross-section of moulds 20a, 20b, 20c such that it only lies on moulds 11a, 11b, 11c. Finally, a second drainage rack 2a is positioned at the top of the chamber. These stages are shown in
During drainage rotating means 5 are actuated and removable base 6 is replaced with a drainage rack 1a, as shown in
The curds are then removed from the set of moulds 11a, 11b, 11c such that they are located in the lower section and drainage rack 9 is disconnected. These stages are shown in
The same procedure is performed to remove the curds from the set of moulds 20a, 20b, 20c once chamber 3 has been pivoted, as shown in
Referring to
As may be seen in
As may be seen in
Finally, as shown in
This device for cutting coagulum consists of a horizontal support 31 on which a set of vertical rods 32 is fastened perpendicular to said support and provided with wires in a star configuration 33 and means 34 to set said rods 32 rotating. Means 34 may be either manual or motorized. The rotation of wires in a star configuration 33 cause the coagulum to be cut.
The aim of the embodiments of the invention described above is not to reduce the scope of said invention. Consequently, a number of modifications may be provided and still remain within the scope of the invention. In particular, it should be noted that more than two sets of moulds may be used.
Number | Date | Country | Kind |
---|---|---|---|
99 04425 | Apr 1999 | FR | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
---|---|---|---|---|
PCT/FR00/00877 | 4/6/2000 | WO | 00 | 1/10/2002 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO00/59294 | 10/12/2000 | WO | A |
Number | Name | Date | Kind |
---|---|---|---|
4568554 | Derode | Feb 1986 | A |
4817515 | Bjerre et al. | Apr 1989 | A |
Number | Date | Country |
---|---|---|
1 123 578 | Sep 1956 | FR |
1 494 977 | Dec 1967 | FR |
2 063 234 | Sep 1971 | FR |
2358102 | Mar 1978 | FR |
2 533 411 | Mar 1984 | FR |