The invention relates to a method for producing a baked product comprising the following steps: producing a baked product preform that has a substantially closed baked surface and an open pore separating surface; applying a liquid to pasty, hardenable mass to the separating surface; optionally introducing the liquid to pasty, hardenable mass into the pores that are open to the separating surface; pressing the separating surface that is provided with the mass onto a surface that is maintained at a controlled temperature; sealing the separating surface by active thermal hardening of the mass on the surface that is maintained at a controlled temperature; removing the baked product that is formed from the baked product preform and the hardened mass from the surface that is maintained at a controlled temperature.
In particular, the invention relates to a method for producing a baked product in which an open pore surface is sealed and/or reinforced.
Many leavened baked goods have two characteristic elements:
Examples thereof are baked goods from the sector bread, pastries or fine bakery products, where by forming a baked skin and gelatinization of the starch by means of steam and hot air, a closed, frequently also smooth and glossy surface crust is formed having completely different properties to the soft porous crumb in the interior.
Further examples with significant structural differences between surface and core region are waffle baked goods baked under pressure such as flat wafers, hollow waffles and wafer containers. Here, in the direct contact with the hot baking mold, baking on to the mold occurs immediately during the filling of the baking mold and formation of a baked skin appearing substantially closed, whereas the wafer interior, owing to extensive steam leavening, has a particularly open and porous structure, which is due to the water content of wafer batters which is particularly high in comparison to other baked goods, at 55 to 66%. This not very dense, large-pore inner structure is also responsible for the very low density of flat wafers, hollow waffles and wafer containers, which is only approximately 0.15 g/cm3.
If it is necessary, in the course of further processing of leavened baked products, to divide them by means of separating cuts, in the cut region the open porous structure is completely visible. This clearly also has less favorable technological properties than the closed outer skin such as, for instance, a greatly increased crumbling or fracturing, or a rapid absorption of liquid or pasty components when such components are combined with the cut open baked good rim. A further unfavorable property is the inclusion of air, in such a manner that during the coating with warm glazings, as a result of thermal expansion, the bubble that is formed bursts, which leaves behind an unattractive hole in the coating. As a result, a substantial protective function of such coatings, minimizing the ingress of atmospheric oxygen and/or moisture, is significantly reduced.
The invention relates in particular to a method for sealing such open large-pore cut edges and methods for the industrial application thereof in the case of baked good bodies formed by separating operations.
The production of baked wafers as flat wafer sheets, hollow waffle sheets, wafer cups or wafer cones in closed metal baking molds having steam venting openings has long been prior art. All of these products have in any case 2 characteristic features in common.
The products obtained during wafer baking have a smooth closed baked skin on all sides, also on the narrow rims, at all events with small openings, which mark the steam escape openings. These products therefore all have a baked, and thus closed, rim.
In addition, for instance for the production of waffle pralines, in the course of the years methods have become established in which, after the baking of the hollow waffle sheets, the baked connection between the hollow shapes remaining as waffle half shells is removed by either horizontal cutting, grinding, chamfering, planing, or by vertical punching or sawing out. The resultant waffle half shells then have an open, large-pore rim comprising the whole waffle cross section in the separation region without the closed baked skin. Such open rims are, firstly, visually unattractive. Secondly, they of course have less favorable technological properties than the closed outer skin. For instance a greatly increased crumbling or fracturing or a rapid absorption of liquid or pasty components, when such components are combined with the cut open baked good rim. In addition, the inclusion of air, in such a manner that during the coating with warm glazings, as a result of thermal expansion, the bubble that is formed bursts, which leaves behind an unattractive hole in the coating. As a result, a substantial protective function of such coatings, minimizing the ingress of atmospheric oxygen and/or moisture before the use-by date, is significantly reduced.
For economic reasons, this second technique of open rims is widespread, since the individual baking of hollow waffle shells with closed rims, in comparison with baking in hollow waffle sheets, requires a great number of individual baking molds, which gives rise to a significantly higher capital cost and space requirement.
The waffle (sheet) thickness also establishes the size of the open rim. A homogeneous thickness is prior art, but individual sides can be made thinner. A baked connection in a standard thickness, however, is considered essential for removing the high water fractions of 55 to 65% in the waffle batters as steam. The waffle material that is situated in the waffle sheet between the hollow waffle half shells is considered to be the baked connection.
The invention relates in particular to a method for sealing open separating surfaces or rims of hollow waffle half shells subsequently to the horizontal removal of the baked connection.
It is an object of the invention to provide a method for producing a baked product that has a sealed and/or reinforced separating surface. In particular, it is an object of the invention that the method permits an efficient industrial mass production of baked products having a reinforced and/or sealed separating surface.
The object according to the invention is achieved by the features of the independent claim. In particular, a method according to the invention comprises the following steps:
producing a baked product preform that has a substantially closed baked surface and an open pore separating surface;
applying a liquid to pasty, hardenable mass to the separating surface;
optionally introducing the liquid to pasty, hardenable mass into the pores that are open to the separating surface;
pressing the separating surface that is provided with the mass onto a surface that is maintained at a controlled temperature;
sealing the separating surface by active thermal hardening of the mass on the surface that is maintained at a controlled temperature;
removing the baked product that is formed from the baked product preform and the hardened mass from the surface that is maintained at a controlled temperature.
And optionally:
thoroughly baking a waffle molded body in a baking iron, wherein the waffle molded body comprises a plurality of baked product preforms and at least one baked connection joining the baked product preforms;
separating the baked product preforms from the baked connection along the separating surfaces of the baked product preforms;
Further features can be that the surface is actively maintained at a controlled temperature and in particular is actively heated or actively cooled, that the surface has a temperature which differs from the ambient temperature, which differs from the temperature of the mass and/or which differs from the temperature of the baked product preform, wherein the temperature is meant just before pressing of the preform onto the surface.
In addition, it can be provided according to the invention that the surface is a closed pore surface, and in particular a metal surface, that the surface is a smooth surface, that the baked product preform is separated from the baked connection and the separating surface is formed by cutting, grinding, chamfering, planing, vertical punching, sawing out, breaking or slicing, that the separating surface is a planar surface, and in particular a plane, that the mass is a solids-rich mass which is applied in layer form, in particular in a single layer, or in a thin layer, to the separating surface, that the separating surface is then sealed by guided pressing onto the heated surface at a heating temperature in the range 105° C. to 225° C., that the depth of penetration of the mass into the separating surface, and in particular into the pores of the separating surface, is less than 1 mm, that the surface is oiled before the pressing, and/or that the solids-rich mass is or contains one of the following masses:
In addition, it can be provided that the mass is a fat-rich mass, in that the fat-rich mass is applied in layer form, in particular in a single-layer form or in a thin layer to the separating surface, that the separating surface is sealed by guided pressing onto the cooled surface under controlled low relative atmospheric humidity, that the depth of penetration of the mass into the separating surface and in particular into the pores of the separating surface is less than 1 mm, that the pressing onto the cooled surface under controlled low relative atmospheric humidity proceeds in a closed station, that the fat-rich mass is and/or contains chocolate, compound chocolate, fat glaze, or ice cream glaze, and/or that subsequently, preferably immediately subsequently, the baked product is coated, filled, covered with a spread and/or dipped.
The invention also relates to a baked product comprising a baked product preform having a substantially closed surface and an open pore separating surface, wherein the open pore separating surface is closed by a hardenable and hardened mass.
In particular, modifications to the physical properties of the masses as described in the exemplary embodiments are designated as hardening.
In particular, modifications to the physical properties at the separating surface as described in the exemplary embodiments are designated as sealing.
As a result of the method and/or sealing according to the invention, the following purposes are achieved:
In the method according to the invention, the open pore separating surface of a baked product preform is sealed. For this purpose a pasty, in particular liquid to viscous, hardenable mass is applied to the separating surface. This application takes place in a layered manner, and in particular as a single layer as a thin layer.
The process in which an open pore surface is closed by a substantially closed pore layer is designated as sealing. This closed pore layer, however, is not necessarily air- or liquid-tight. However, it has a structure which has smaller pores than the open pore separating surface.
Subsequently thereto, the baked product preform is pressed onto a surface that is maintained at a controlled temperature together with the mass that is applied to the separating surface. The surface that is maintained at a controlled temperature is constructed, for example, as a smooth or structured metal surface. In particular, preferably, those materials and top surfaces of the surface are used in which no adhesion of the pasty hardenable mass occurs. Optionally, by coating the surface with oil, the tendency to adhesion can be decreased. The surface is preferably made of metal, for example of cast iron, tempered or not tempered, or made of stainless steel. In addition, the surface is actively maintained at a controlled temperature. That is to say that the surface is either heated or cooled. In particular, the surface has a temperature which differs from the ambient temperature. For hardening the mass, the surface, furthermore, preferably has a temperature which differs from the temperature of the mass on application to the separating surface. According to a particularly preferred embodiment, the temperature of the surface also differs from the temperature of the baked product preform during or shortly before the pressing operation.
The mass is hardened by the surface that is maintained at a controlled temperature. As a result, the separating surface is sealed. This hardening takes place, for example, along a smooth surface. By pressing on the baked product preform and the mass, the mass penetrates into the open pores of the separating surface of the baked product preform.
In this case, the pressing may be performed in such a manner that the peaks of the open pore separating surface are closed flush with the mass in the hardened state.
According to a further embodiment, the mass can cover the open pore separating surface completely in such a manner that a layer of the mass lies over the entire separating surface. Open pore parts of the separating surface are completely covered thereby.
The method according to the invention forms a baked product that possesses an outer casing that is completely substantially closed or sealed. Those surfaces of the baked product which are in contact with one of the waffle baking plates during the thorough baking have in any case a substantially closed small-pore outer skin. The separating surfaces that are formed by a separating operation open the porous crumb of the baked product preform to the outside. In particular, these separating surfaces are sealed, reinforced and closed by the method according to the invention. A baked product is formed thereby that comprises a baked product preform that has a substantially closed top surface and an open pore separating surface, wherein the open pore separating surface is closed by a hardenable mass. Examples of such products are hollow waffles, in particular half shells, which are formed by separating them off from a baked aggregate. In particular, these separated baked product preforms have a separating surface which substantially corresponds to a planar surface. For sealing, as a result, the surface onto which the preform is pressed can also be made planar.
Hereinafter, the method according to the invention will be discussed in more detail with reference to two specific exemplary embodiments.
First exemplary method: sealing (closing the open rim) via a baking step after application of solids-rich masses
In principle, the sealing method is also applicable to conventionally baked hollow bodies or baked goods having a porous crumb if, as a consequence of separating off a part of the closed baked skin, an open pore structure occurs.
Second exemplary method: Sealing (closing the open rim) via a cooling step after application of fat-containing masses.
The cold sealing method is also applicable to conventionally baked hollow bodies or baked goods having a porous crumb if, as a consequence of separating off a part of the closed baked skin, an open pore structure occurs.
Recipe Examples of Fat-Containing Masses
Number | Date | Country | Kind |
---|---|---|---|
A 467/2013 | Jun 2013 | AT | national |
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/EP2014/061312 | 6/2/2014 | WO | 00 |