Abstract: A method is disclosed which reduces the oil content of a potato chip. The method teaches that a steeper, faster temperature drop upon initial introduction of the potato slice to the fryer, followed by a longer period of exposure to lower temperatures before increasing to standard frying temperatures, reduces oil content of a potato chip. The invention further discloses a pre-treatment method which involves submerging the potatoes in a hot water bath which results in decreased oil content. Additionally, the invention discloses a post-treatment method involving subjecting the potato chip to superheated steam that further reduces oil content. The two pre and post-treatment methods, combined with the primary temperature scheme method for reducing oil content, yield a potato chip with significantly reduced oil content.

Abstract: A method and apparatus to impart a random curvature to frying pre-formed snack pieces in a multi-layer fryer through the use of a contoured submerger. The shape of the contours of a contoured submerger imparts a random final curvature to each snack piece as snack pieces pass through a glass transition during frying. The contours are chosen so as to achieve a desired bulk density for the packaged fried snack products. Such method and apparatus are also useful in controlling the amount of change in bulk density or amount of settling of a packaged product during shipping or handling.

Abstract: A mold form fryer utilizing a top conveyor that transports snack pieces through a constant velocity oil stream without the need of a bottom mating mold or conveyor. Herein, the form fryer having a fryer housing for controlling the frying atmosphere is provided with a top conveyor disposed above a fryer oil pan positioned longitudinally through the fryer. Uncooked snack pieces are provided to the fryer oil pan by a bottom entrance conveyor. A steam shield separates a front-end vestibule from the downstream portion of the fryer housing, and inert gas manifolds introduce inert gas into the front-end vestibule, thereby providing a sufficiently low oxygen and sufficiently low condensable gas or steam environment near the product submerging point.

Abstract: A process and apparatus for a method for reducing the amount of acrylamide in thermally processed foods. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on the manipulation of various unit operations used in the production of food products, particularly the washing and cooking unit operations. For example, the washing unit operation can be modified to provide a contacting step at an increased time and temperature, and adding components such as calcium chloride and L-cysteine to an aqueous solution used for the contacting. The cooking unit operation can be modified by dividing it into at least a higher-temperature first heating step and a lower-temperature second heating step in order to avoid the high-temperature/low-moisture conditions most favorable for acrylamide formation.

Abstract: A process and apparatus for a method for reducing the amount of acrylamide in thermally processed foods. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on the manipulation of various unit operations used in the production of food products, particularly the washing and cooking unit operations. For example, the washing unit operation can be modified to provide a contacting step at an increased time and temperature, and adding components such as calcium chloride and L-cysteine to an aqueous solution used for the contacting. The cooking unit operation can be modified by dividing it into at least a higher-temperature first heating step and a lower-temperature second heating step in order to avoid the high-temperature/low-moisture conditions most favorable for acrylamide formation.

Abstract: A method for reducing the amount of acrylamide in thermally processed foods. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on the manipulation of various unit operations used in the production of food products, particularly the peeling, cooking, and rejecting unit operations. For example, the peeling unit operation can be modified to provide a more fully peeled potato slice. The cooking unit operation can be modified by cooking to higher moisture and/or at lower hot oil temperatures to minimize the high-temperature/low-moisture conditions most favorable for acrylamide formation. The rejection unit operation can be modified to reject defects that result in high levels of acrylamide.

Abstract: A method is disclosed which reduces the oil content of a potato chip. The method teaches that a steeper, faster temperature drop upon initial introduction of the potato slice to the fryer, followed by a longer period of exposure to lower temperatures before increasing to standard frying temperatures, reduces oil content of a potato chip. The invention further discloses a pre-treatment method which involves submerging the potatoes in a hot water bath which results in decreased oil content. Additionally, the invention discloses a post-treatment method involving subjecting the potato chip to superheated steam that further reduces oil content. The two pre and post-treatment methods, combined with the primary temperature scheme method for reducing oil content, yield a potato chip with significantly reduced oil content.

Abstract: A method for reducing the amount of asparagine, a pre-cursor of acrylamide, in food products that are thermally processed. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on contacting a potato feed such as potato slices containing asparagine, an acrylamide pre-cursor, with a leaching solution to extract asparagine out of the potato feed. Thermally processing the leached potatoes will result in a potato product having a lower level of acrylamide than a non-leached, thermally processed potato product.

Abstract: Disclosed is a method for reducing the level of acrylamide in a thermally processed food. In one aspect, acrylamide is first formed in a thermally processed food or food ingredient and is subsequently removed from the food or food ingredeint. The acrylamide can be removed by polymerizing the acrylamide, dissolving the acrylamide, and/or causing vaporization of the acrylamide.

Abstract: A mold form fryer utilizing a top conveyor that transports snack pieces through a constant velocity oil stream without the need of a bottom mating mold or conveyor. Herein, the form fryer having a fryer housing for controlling the frying atmosphere is provided with a top conveyor disposed above a fryer oil pan positioned longitudinally through the fryer. Uncooked snack pieces are provided to the fryer oil pan by a bottom entrance conveyor. A steam shield separates a front-end vestibule from the downstream portion of the fryer housing, and inert gas manifolds introduce inert gas into the front-end vestibule, thereby providing a sufficiently low oxygen and sufficiently low condensable gas or steam environment near the product submerging point.

Abstract: A novel method for controlling adhesion of food product to process surfaces by manipulating fryer oil composition and treating process surfaces. Adding various chemical species to fryer oil allows control of interfacial tension between food product and process surface. Process surfaces may be abraded to reduce surface area in contact with food product thereby reducing undesirable product adhesion.

Abstract: A mold form fryer utilizing a top conveyor that transports snack pieces through a constant velocity oil stream without the need of a bottom mating mold or conveyor. Herein, the form fryer having a fryer housing for controlling the frying atmosphere is provided with a top conveyor disposed above a fryer oil pan positioned longitudinally through the fryer. Uncooked snack pieces are provided to the fryer oil pan by a bottom entrance conveyor. A steam shield separates a front-end vestibule from the downstream portion of the fryer housing, and inert gas manifolds introduce inert gas into the front-end vestibule, thereby providing a sufficiently low oxygen and sufficiently low condensable gas or steam environment near the product submerging point.

Abstract: A process and apparatus for a method for reducing the amount of acrylamide in thermally processed foods. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on the manipulation of various unit operations used in the production of food products, particularly the washing and cooking unit operations. For example, the washing unit operation can be modified to provide a contacting step at an increased time and temperature, and adding components such as calcium chloride and L-cysteine to an aqueous solution used for the contacting. The cooking unit operation can be modified by dividing it into at least a higher-temperature first heating step and a lower-temperature second heating step in order to avoid the high-temperature/low-moisture conditions most favorable for acrylamide formation.

Abstract: A process and apparatus for a method for reducing the amount of acrylamide in thermally processed foods. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on the manipulation of various unit operations used in the production of food products, particularly the washing and cooking unit operations. For example, the washing unit operation can be modified to provide a contacting step at an increased time and temperature, and adding components such as calcium chloride and L-cysteine to an aqueous solution used for the contacting. The cooking unit operation can be modified by dividing it into at least a higher-temperature first heating step and a lower-temperature second heating step in order to avoid the high-temperature/low-moisture conditions most favorable for acrylamide formation.

Abstract: A process and apparatus for a method for reducing the amount of acrylamide in thermally processed foods. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on the manipulation of various unit operations used in the production of food products, particularly the washing and cooking unit operations. For example, the washing unit operation can be modified to provide a contacting step at an increased time and temperature, and adding components such as calcium chloride and L-cysteine to an aqueous solution used for the contacting. The cooking unit operation can be modified by dividing it into at least a higher-temperature first heating step and a lower-temperature second heating step in order to avoid the high-temperature/low-moisture conditions most favorable for acrylamide formation.

Abstract: A process and apparatus for a method for reducing the amount of acrylamide in thermally processed foods. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on the manipulation of various unit operations used in the production of food products, particularly the washing and cooking unit operations. For example, the washing unit operation can be modified to provide a contacting step at an increased time and temperature, and adding components such as calcium chloride and L-cysteine to an aqueous solution used for the contacting. The cooking unit operation can be modified by dividing it into at least a higher-temperature first heating step and a lower-temperature second heating step in order to avoid the high-temperature/low-moisture conditions most favorable for acrylamide formation.

Abstract: A method for producing a dehydrated potato product and products incorporating the dehydrated potato product. The method includes macerating uncooked whole potatoes to form a slurry. The resultant slurry is then optionally decanted to remove excess liquid. Then the slurry is cooked to form a potato mash. The potato mash is then chilled which provides an opportunity to retrograde the starch as well as reduce the mash cohesiveness. The mash is then dehydrated to form a dehydrated potato product. Throughout various stages of processing, additives can be incorporated to adjust the texture, adhesiveness, taste, color, and shape retention of the final food product. The additives may be incorporated during the slurry phase wherein they are more readily absorbed. Further, additives may also be incorporated which reduce undesirable puffing.

Abstract: Disclosed is an improved system, method and apparatus for turning a bedded product to enhance the temperature uniformity of the product. In one aspect, the system is directed towards using a flow wheel to turn over a bed of hot product exiting a dehydrator. The improved system, method, and apparatus lowers the variability of temperature, moisture content, oil content and acrylamide levels in a bedded food product.

Abstract: A method is disclosed which reduces the oil content of a potato chip. The method teaches that a steeper, faster temperature drop upon initial introduction of the potato slice to the fryer, followed by a longer period of exposure to lower temperatures before increasing to standard frying temperatures, reduces oil content of a potato chip. The invention further discloses a pre-treatment method which involves submerging the potatoes in a hot water bath which results in decreased oil content. Additionally, the invention discloses a post-treatment method involving subjecting the potato chip to superheated steam that further reduces oil content. The two pre and post-treatment methods, combined with the primary temperature scheme method for reducing oil content, yield a potato chip with significantly reduced oil content.

Abstract: A method for reducing the amount of acrylamide in thermally processed foods. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on the manipulation of various unit operations used in the production of food products, particularly the peeling, cooking, and rejecting unit operations. For example, the peeling unit operation can be modified to provide a more fully peeled potato slice. The cooking unit operation can be modified by cooking to higher moisture and/or at lower hot oil temperatures to minimize the high-temperature/low-moisture conditions most favorable for acrylamide formation. The rejection unit operation can be modified to reject defects that result in high levels of acrylamide.