A manufacturing method of a sheet for food containers and a sheet for food containers manufactured by using the same, the method comprising: step 1 of blending a poly L-lactide (polylactic acid: PLA) and a polybutylene succinate (PBS) resin with a base material, and adding an organically treated organic cloisite; step 2 of melt-mixing the resin composition obtained in step 1 at high temperature by using an extruder, followed by quenching with cold water to be flattened; and step 3 of drying a flat plate-shaped resin obtained in step 2 by using a hot air dryer.

The objective of the present invention is to provide a container for microwave oven and a package for microwave oven in which a clearance which is formed between a flanged portion and a lid material and a content may enter is made narrower while maintaining automatic vapor discharge function.

The present invention provides a lidded container which, even when a flange portion of the container warps during microwave heating, can prevent a contact between the flange portion and a lid and allows steam to pass from a steam escape mechanism. The lidded container is provided with a container having an opening and a lid which covers the opening and is joined to the container. The container is provided with a bottom portion, a side portion standing upright from the bottom portion, and a flange portion which is continuously connected to an upper portion of the side portion and includes a first plane. A circumferential seal portion is formed between the lid and the first plane of the flange portion. The seal portion is provided with a main seal portion and a protruding seal portion protruding inward with respect to the main seal portion. At least one of the flange portion and the lid is formed with a contact suppression mechanism for suppressing a contact between the flange portion and the lid, which is provided outside the protruding seal portion at a position corresponding to at least the protruding seal portion.

A method of preparing and serving a meal package (10) comprising the steps of: preparing a meal package(10), including:disposing a food product (16, 17) into a container (11), the container (11) having an opening defining therein a volume for receiving the food product(16, 17); and sealing the container by securing a film (12) over or around the container (11);heating the meal package (10) in a microwave oven; removing the film from the container; serving the heated food product in the container; cleaning the used container after the food product has been consumed; and repeating the above steps for the used container.

Improvements in and relating to a cooking apparatus A container (201) for storing and steaming food is disclosed, together with a packaged food product, a method of packaging food items and a method of cooking food items. The container (201) comprises a first compartment (202) for containing a steam source and a second compartment (203) for containing at least one food item. The second compartment (203) is disposed above the first compartment (202). Preferably, the first compartment (202) is separated from the second compartment (203) by a partition (221) and an adjustable barrier (240), the partition (201) comprising at least one opening (223) for admitting water vapour into the second compartment (203) from the first compartment (202). Preferably, the adjustable barrier (240) is movable from a) a food storing configuration in which the adjustable barrier (240) prevents flow of at least one of i) liquid and ii) gas from the first compartment (202) to the second compartment (203), to b) a food steaming configuration in which at least one of i) liquid and ii) gas is able to flow between the first and second compartments (202, 203).

The present invention is directed to a tray endowed with an improved rigidity and resistance to deformation and bending. The tray comprises a plurality of primary sidewalls and a plurality of chamfered corners having a corner secondary sidewall integrally formed with and extending from the base, wherein the primary sidewalls and corner secondary sidewalls define a product receiving cavity. The tray further includes a plurality of ribs integrally formed with and extending downwardly from the base, and a plurality of channels positioned between and separating adjacent ribs, wherein each channel is substantially perpendicular to a corner secondary side wall.

In some embodiments, apparatuses and methods are disclosed herein useful to provide convenient, microwavable packages for cooking and crisping food products in a microwave oven are. In some embodiments, the microwavable packaged food product includes an outer package and a quantity of food product contained therein. By one approach, the package has a multilayer microwavable tray having at least three layers including a susceptor layer that includes a microwave energy interactive material thereon and a plurality of discrete openings disposed therein, an absorbent pad layer having a flexible paper-based material suitable for absorbing moisture and grease, and a paperboard base layer that provides a structure by which the susceptor layer and absorbent paper-based layer are supported. In this manner, a microwavable tray or support has at least three macro-layers including a susceptor, an absorbent pad, and a paperboard support, some of which may include additional layers therein as discussed below.

A package for food products being capable of being subjected to a heating step, comprising: a first container, which has an access opening engaged by a first closing element; a second container, which has an access opening engaged by a second closing element; the containers are configurable between a preservation condition, in which they are separated and closed by their closing elements, and an operating condition, in which the closing elements are disconnected from the respective containers and the latter are coupled together at their respective access openings.

A packaging device including a breathable or non-breathable, microwavable composite film structure in the form of a bag, a tray or other type of container is disclosed. The device may include atmospheric control attributes in the form of microperforations, and steam venting mechanisms in the form of precision cuts or channels. The microperforations may form atmospheric conditions within the device for the storage of perishable and/or respiring food products, and the steam venting mechanisms may regulate the pressure and/or heat within the device during microwave cooking of the food products within.

According to one example, a removable lid for a container of a vessel includes a valve configured to selectively allow air to vent out of a fluid retaining interior region of the container when the lid is positioned on the container. The valve includes an opening that extends entirely through a thickness of a portion of the lid, and a valve plug. The valve plug includes a valve top portion that extends vertically above a top surface of the portion of the lid, a valve bottom portion, and a valve central portion. The valve top portion is configured to be contracted, by a downward pressure, into a more vertically compact shape. The valve top portion is further configured to, absent the downward pressure, expand back upwards out of the more vertically compact shape.