The invention comprises an ovenable packaging structure having an integral one-way valve. The laminate structure comprises an outer layer having a cut line which defines a flap that is separable from the outer layer, wherein the outer layer is adhered to an inner layer having a cut line which is offset from the outer cut line and defines a portion that is separable from the inner layer along the inner cut line and defines an opening into the packaging structure. The adhesive between the layers comprises, in an embodiment, a channel of pressure sensitive adhesive which surrounds both the outer cut line and the inner cut line, wherein the channel of pressure sensitive adhesive defines the perimeter of at least one adhesive-free valve chamber within said channel. The valve chamber comprises at least a portion of the outer cut line and the inner cut line.

The present invention provides a peelable microwavable food package capable of absorbing undesired liquids released from packaged food products during storage, display, or heating, including microwave cooking. The present invention provides a peelably sealed microwavable food package in any packaging format including pouches, flow-wrap, horizontal form fill seal (HFFS), vertical form fill seal (VFFS), gas-flushed, vacuum-packaged, sealed rigid plastic containers and the like.

Embodiments include a method of manufacturing a container with a leak resistant seal. The method includes forming an elastomer or a plastic or any combination thereof into a container inside out by forming an outside portion of the container on an internal surface of the container before inverting the container and forming an inside portion of the container on an external surface of the container before inverting the container. In embodiments, the method includes forming or coupling a leak resistant seal on the external surface of the container before inverting the container. The leak resistant seal provides access to the inside portion of the container when the leak resistant seal is open after inverting the container and holds at least liquid internal to the container when applying an external force to the container without use of an external structure to keep the leak resistant seal closed after inverting the container.

The invention comprises an ovenable packaging structure having an integral one-way valve. The laminate structure comprises an outer layer having a cut line which defines a flap that is separable from the outer layer, wherein the outer layer is adhered to an inner layer having a cut line which is offset from the outer cut line and defines a portion that is separable from the inner layer along the inner cut line and defines an opening into the packaging structure. The adhesive between the layers comprises, in an embodiment, a channel of pressure sensitive adhesive which surrounds both the outer cut line and the inner cut line, wherein the channel of pressure sensitive adhesive defines the perimeter of at least one adhesive-free valve chamber within said channel. The valve chamber comprises at least a portion of the outer cut line and the inner cut line.

A food wrap for wrapping ovenable foods includes a polyester layer having a thickness of about 12 μm having a first surface and a second surface opposite the first surface, a barrier layer comprising aluminum oxide covering at least a majority of the first surface of the polyester layer, a paper layer adhered to the barrier via an adhesive, where the paper layer has a grammage of about 35 g/m.sup.2, and a coating layer covering at least a majority of the paper layer, where the coating layer covers an ink label.

The invention comprises an ovenable packaging structure having an integral one-way valve. The laminate structure comprises an outer layer having a cut line which defines a flap that is separable from the outer layer, wherein the outer layer is adhered to an inner layer having a cut line which is offset from the outer cut line and defines a portion that is separable from the inner layer along the inner cut line and defines an opening into the packaging structure. The adhesive between the layers comprises, in an embodiment, a channel of pressure sensitive adhesive which surrounds both the outer cut line and the inner cut line, wherein the channel of pressure sensitive adhesive defines the perimeter of at least one adhesive-free valve chamber within said channel. The valve chamber comprises at least a portion of the outer cut line and the inner cut line.

Provided is a microwavable pouch including an automatic steam venting mechanism, which includes a steam venting sealing portion, a slit, and a flap piece. The steam venting sealing portion includes a seal peeling start portion. The slit includes a pair of slit end portions and a slit intermediate portion formed toward a region closer to the seal peeling start portion than the pair of slit end portions, and the automatic steam venting mechanism further includes an unsealed portion formed to cover the entire periphery of the slit and a control sealing portion formed by heat-welding a part of the flap piece to a second film.

A vented sealable bag comprises a container, a two-part seal and a vent. The container has opposing sidewalls and a bottom defining a cavity. The sidewalls form a neck defining an opening opposite the bottom, The sidewalls have an inner surface facing the cavity and an outer surface external to the container and the sidewalls have a thickness. A two-part seal is formed on the inner surface of the sidewalls adjacent the neck. The two-part seal has a hook formed on one sidewall and a clasp formed on an opposite sidewall. The hook and clasp are arranged on the inner surface of the sidewalls to form an airtight seal isolating the cavity from an external environment when the hook is embedded in the clasp but otherwise maintain the opening in the container. A vent is integrally formed in one of the sidewalls. The vent is further comprised of a dimple having a thickness that is thinner than the thickness of the sidewalls. The dimple is concave when viewed from the cavity and has a slit formed at an apex that is closed except when the container is sealed and an internal pressure is created that is higher than an external pressure on the outer surface of the sidewalls.

The present invention provides packages pre-packed with nuts/seeds for roasting thereof in a microwave.

A system and method for cooking food in a valved pouch. In an exemplary embodiment, the system includes a vacuum sealer that vacuum seals uncooked food in the pouch; a cooker that heats the vacuum sealed pouch containing the uncooked food to cook the food; and a control that modulates a cooking temperature and a cooking time at which the cooker cooks the vacuum sealed pouch containing the uncooked food to selectively partially or completely cook the food in the vacuum sealed pouch. The cooking temperature and cooking time are selected such that the valve of the vacuum sealed pouch remains closed in the cooker throughout the cooking time. The valve is selected to open during subsequent retherming of the cooked food in the vacuum sealed pouch to allow steam and/or vapor to escape from the pouch to the ambient.