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Even heating microwavable container

A microwave, microwave oven technology, applied in the field of uniformly heated microwave containers

Inactive Publication Date: 2013-04-24
GRAPHIC PACKAGING INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when large food items are heated in a microwave oven, portions of the food product tend to reach the desired final heating temperature too early in the heating cycle

Method used

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  • Even heating microwavable container
  • Even heating microwavable container
  • Even heating microwavable container

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0078] The baseline heating characteristics of the lasagna were determined by heating each lasagna in a co-extruded polyethylene terephthalate (CPET) tray provided in the package. The tray does not include any microwave energy interacting elements. According to the heating instructions provided with the lasagna, each lasagna was heated for a total of approximately 31 minutes, 14 minutes at 100% power and 17 minutes at 50% power. The results are shown in Table 1.

[0079] Table 1

[0080]

[0081] Typically, some burning of the cheese and meat sauce occurs near the edges of the lasagna. A lasagna presents a very overcooked top surface. The texture of the bottom noodles is acceptable.

example 2

[0083] The heating characteristics of the lasagna were again determined by heating each lasagna in a CPET tray provided in the package as described in Example 1, except that the lasagna was heated at full power throughout the heating cycle. The results are shown in Table 2.

[0084] Table 2

[0085]

[0086] Typically, the top surface of each lasagna is overcooked in hardened areas near the edges. A small amount of dried out noodles on the bottom was observed in one of the higher wattage ovens.

example 3

[0088] use Figure 1A and Figure 1C The microwave energy interaction tray shown in Evaluates the heating characteristics of lasagna. Each lasagna was heated at full power throughout the heating cycle. The results are shown in Table 3.

[0089] table 3

[0090]

[0091] Usually, there is some slight overcooking on the top surface of the center of the lasagna. The cheese and pate are heated along the edges without any burning or burning. The bottom noodles showed some slight dryness. The meat sauce and noodles had a good structure on the inner surface of the lasagna.

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Abstract

A construct for heating a food item in a microwave oven comprises a base (102), a wall (104) extending upwardly from the base (102), a microwave energy shielding element (108) overlying at least a portion of the wall (104), and a microwave energy diffusing element (112) circumscribed by the microwave energy shielding element (108), where the microwave energy diffusing element (112) includes a plurality of microwave energy reflective elements (116) within a microwave energy transparent area (114).

Description

[0001] Cross reference to related application [0002] This application claims the benefit of US Provisional Application No. 60 / 881,781, filed January 22, 2007, which is incorporated herein by reference in its entirety. technical field [0003] The present invention relates to structures, webs, blanks, trays, components and methods for heating food, and in particular to structures, webs, blanks for heating food in microwave ovens , pallets, components and methods. Background technique [0004] Microwave ovens are often used as a convenient means of heating and / or reheating food. However, when large food products are heated in a microwave oven, portions of the food product tend to reach the desired final heating temperature too early in the heating cycle. Consequently, such portions of the food tend to become overheated, dry and / or charred, while other portions remain underheated. Therefore, there is a need for a wrapper, container or other means to control the rate of he...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24C15/16F24C15/00A47G19/02
CPCB65D2581/3479B65D2581/3477B65D2581/3497B65D2581/3498B65D2581/344B65D2581/3491B65D2581/3493B65D81/3453B65D2581/3472H05B6/6494Y10T428/1225
Inventor L·M·C·莱N·曾B·刘
Owner GRAPHIC PACKAGING INT
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