A method of forming a container from a blank. The method can comprise obtaining a blank having a wall portion, a flange portion, and a coating on at least a portion of the flange portion. At least one score line can extend at least partially in the flange portion, and the coating can at least partially cover the at least one score line. The method further can comprise forming the container from the blank by forming a wall of the container from the wall portion and forming a flange of the container from the flange portion. The flange can extend from the wall. The forming the container further can comprise forming the at least one score line into at least one pleat in at least the flange. The coating can at least partially cover the at least one pleat to form a substantially continuous sealing surface on the flange.

A beverage preparation package including a container defining a multiplicity of openings, and a beverage preparation composition positioned in the container. The beverage preparation composition includes a microwave susceptor and a beverage precursor. In some cases, the beverage preparation composition includes a particulate beverage precursor and a particulate microwave susceptor. The particulate beverage precursor typically includes a plant material, such as coffee beans, tea leaves, herbs, or the like. Preparing a beverage includes contacting water with a beverage preparation package including a beverage preparation composition and water, irradiating the water with microwave radiation to vaporize at least a portion of the water, thereby imparting a flavor from the beverage preparation composition to the water to yield the beverage. The beverage preparation composition can be separated from the beverage.

A microwave packaging material for forming a construct for holding a food item. The microwave packaging material can include a film at least partially secured to a substrate by a pattern of adhesive. A plurality of closed cells can extend between the film and the substrate, each closed cell of the plurality of closed cells can be at least partially defined by the pattern of adhesive, and each of the closed cells can be configured to expand during heating to form respective expanded cells. The microwave packaging material further can include a bonded region extending along at least a portion of the microwave packaging material. The film can be secured to the substrate along the bonded region, and the bonded region can be for forming at least one recess among the expanded cells and can be for extending along the food item when the microwave packaging material is heated.

Various blanks are provided for forming sleeves, containers, and other constructs for heating, browning, and/or crisping of a food item in a microwave oven, and for holding and/or transporting the food item after heating. The various blanks, sleeves, containers, and other constructs may include a removable portion defined by one or more lines of disruption that enable the removable portion to be separated from the remainder of the blank, sleeve, container, or other construct.

A container structure for sealing and keeping food fresh, which can be repacked after unpacking. The container structure has a container body and a covering film; the container body has a housing chamber, a first abutting face, a concave groove portion, a second abutting face and a preset break line; the covering film can seal the housing chamber and bond with the first and second abutting face, specifically, it is bonded to the first abutting face through the micro sealing portion, so that the bonding between the covering film and the first abutting face is weaker than the bonding between the second abutting face; To open the covering film, the user needs to apply a force upon the external edge of the top end of the container body, to break the preset break line, and to separate the covering film from the first abutting face, so as to form a separated and independent frame.

A flexible microwave heating package for food includes a first panel and a second panel joined to one another in a facing relationship, and a third panel joined to the first panel and the second panel. The first panel and second panel define walls of the package and the third panel defines a base of the package. The first panel and second panel may each include microwave energy interactive material operative for reflecting at least a portion of incident microwave energy.

Various blanks are provided for forming sleeves, containers, and other constructs for heating, browning, and/or crisping of a food item in a microwave oven, and for holding and/or transporting the food item after heating. The various blanks, sleeves, containers, and other constructs may include a removable portion defined by one or more lines of disruption that enable the removable portion to be separated from the remainder of the blank, sleeve, container, or other construct.

A container formed from a blank, a forming, tool and a method of forming a container are disclosed. The container includes features that are formed by a plurality of score lines in a marginal portion of the blank. The container has a bottom wall, a side wall, and a flange extending from the side wall. The flange has a thickness that is greater than a thickness of the blank.

A container that includes a microwave interactive web at least partially overlying and joined to a three-dimensional support, wherein the three-dimensional support may be formed prior to having the microwave interactive web mounted thereto. The three-dimensional support may be a preformed container that is sufficiently rigid and dimensionally stable for use in containing food.