KR20070104345A - Cooking bags - Google Patents

Abstract

A packaging suitable for use in or on a heating appliance, comprising a bag in which, in use, is sealed an article for heating. The bag has an aperture formed therein over which is sealed a film of material which forms a window in the bag, wherein the seal between said film and the material of the bag is sensitive to temperature and/or pressure such that the window at least partially detaches automatically from the bag upon the temperature and/or pressure within the bag reaching a predefined level so as to vent the atmosphere within the bag.

Description

Cooking bags {Cooking bags}

The present invention relates to a sealed bag in which food can be cooked.

Recently, there has been a general movement to provide prepackaged food in a package that can be placed directly into a cooking apparatus such as an oven, where the food contained in the package is still cooking in the package. This has the advantage that the packaging can comprise a cooking environment, for example by controlling the pressure in the packaging, and if appropriate controlling the cooking environment to some extent, thereby improving the cooking action. Different food varieties can be cooked in the same oven without being exposed to each other, especially in the case of scented foods, where exposure to each other can have a detrimental effect on the taste of the food. Moreover, cooking by-products such as juices and the like are retained in the package so that they can be easily disposed of after the package is removed from the oven, thereby making the cooking experience much cleaner.

However, these systems have a drawback: once cooking is completed, the package must be removed from the cooking apparatus and then the package removed so that the contents can be removed for consumption. The packaging is normally very hot when removed from the cooking apparatus and therefore the user is very at risk of deliberate during this operation.

According to the present invention, there is provided a bag suitable for use in or on a heating device, the bag having a bag on which the object to be heated during use is sealed, the bag having a hole formed therein, the top of which A film of material forming the window of the bag is sealed, and the seal between the material of the bag and the film is sensitive to temperature and / or pressure when the temperature and / or pressure in the bag has reached a predetermined level. The window is at least partially detached from the bag to exhaust air in the bag.

The packaging according to the invention has the advantage that food can be packaged in bags with intensive storage conditions, and the increase in pressure upon heating causes the packaging to expand before the window vents the internal air to form a pillow. Have Once the food is cooked, the holes in the bag can be used to remove food from the package using appropriate chopsticks, without the need for the user to handle the package itself, and the film can be removed by the user to completely expose the hole. It can be easily removed. In this way, the problems of the prior art system are overcome while maintaining the same advantages as including cooking by-products.

Preferably, the bag is formed of a stiff material to maintain the pillow shape of the bag when the internal pressure is released upon detachment of the window. In this way, the bag can advantageously be used as a container for providing food through the window.

Advantageously, the film window is sealed to the foil with a seal having a tear strength lower than the tear strength of the bag, so that during use, any accumulated vapor can be discharged without rupturing the bag and thus the user There is no need to punch the bag.

Preferably, the strength of the seal is such that the user can detach the window at any time during use. In this way, the film can be removed early in the cooking process for a drier baking result, and conversely the film can be held in place for the result of a lot of juice in the steamed food.

Preferably, the bag is formed of an aluminum foil material, in particular at a standard thickness of substantially between 25 and 500 microns, but preferably at a standard thickness of substantially between 25 and 100 microns, which is baking and oven It has an advantageously high temperature resistance, suitable for withstanding high temperatures in cooking. Desirably, holes are formed in one side panel of the bag that can be positioned upwards in the cooking apparatus during use. The film may preferably be formed of polyester or polyester polythene material and formed as a panel slightly larger than the opening of the bag so that the overlap with the bag may provide a seal between the film and the bag, Or alternatively it may extend across the entire side panel of the apertured bag.

In one embodiment, the film can be transparent so that the food can be seen while the packaging is sealed. Advantageously, the film has an anti-fog coating to ensure that food is always visible, especially when in use, to ensure that food is visible when the bag is taken out of the freezer and taken to a hot grill. .

Some food products may require respiratory properties so that appropriate film solutions can be prepared. The gas permeability can be controlled, preferably through micro-perforation of the film to match the respiration rate of the food stored therein to maximize the shelf life of the food product.

The packaging may have food prepackaged therein, but in one embodiment there is provided an opening that can be sealed by the user so that the products prepared by the user are inserted into the bag and subsequently cooked the product in the manner described above. The bag is sealed. For example, the opening may be provided with an adhesive strip, the strength of the adhesive being resistant to pressure, which is greater than the strength of the seal between the window and the bag. In particular, an adhesive may be provided on the lip which is folded several times before adhering to the bag to ensure a good seal. Advantageously, a sealable opening is formed with the adhesive on the outside of the bag so that the adhesive cannot transfer to food in the bag when very high temperatures are reached during use.

However, preferably, the opening can be sealed mechanically or manually without adhesive. In particular, it is desired that the lip of the opening be folded several times before being pressed together to ensure a good seal. Alternatively, where the bag is formed of a weldable material, the opening may be sealed with a permanent welding seal once the bag is filled with a food product. In particular, ultrasonic welding is desired to be used to form a welding seal.

Packaging is suitable for a wide range of cooking devices, but it is particularly advantageous to be used for things such as barbecue molds, and bags with pre-prepared food products, perhaps raw, partially cooked or fully cooked, have a cooking by-product and the like depart from the bag. It is placed directly on the barbeque with the window facing up to prevent it. When the bag is inflated in a pillow shape, once the film is released and the bag is discharged to relieve internal pressure, it is desirable that the bag is stiff enough to support itself in the inflated position.

The present invention can be used to package food.

Claims (15)

A package having a bag in which an object to be heated during use is sealed and suitable for use in or on a heating device, the bag having a hole formed therein, wherein the film of material forming a window of the bag over the hole is sealed. And the seal between the film and the material of the bag is sensitive to temperature and / or pressure such that the window is at least partially automatically removed from the bag to vent air from the bag when the temperature / pressure in the bag reaches a predetermined level. Detached, packing. The method of claim 1, The bag is formed of a stiff material that is sufficient to maintain its expanded shape and support its weight once the window is removed from the bag during use. The method of claim 1, wherein The bag is formed from an aluminum foil material. The method of claim 3, wherein The aluminum foil material is substantially standard thickness between 25 microns and 50 microns. The method of claim 1, wherein A hole is formed in the panel on one side of the bag. The method of claim 1, wherein The film is a polyester or polyester polythene. The method of claim 1, wherein The film is larger than a hole but has a border extending close to the hole. The method of claim 7, wherein The film wraps extending across the entire side panel of the bag in which the holes are formed. The method of claim 1, wherein The film is transparent, packed. The method of claim 1, wherein The film has a gas delivery rate that matches the respiration rate of the food product during use. The method of claim 1, wherein The bag has an opening that can be sealed by the user, and an object to be prepared and heated by the user can be inserted into the bag by the opening. The method of claim 11, The opening is provided with an adhesive strip, the strength of which is greater than the seal between the window and the bag, having a resistance to pressure. The method of claim 12, The adhesive strip is provided on a lip that is folded several times before being adhered to the bag in use. The method according to any one of claims 1 to 10, The bag has a pre-packed heating object inside. The method of claim 1, wherein The packaging is in the cooking apparatus or on the cooking apparatus for use, wherein in use the object to be heated is a food product.