Beverage pourer and method

A beverage pourer comprising

• an elastically flexible sheet, the sheet having a relaxed state in which the sheet is generally flat, the sheet in the relaxed state having a top side facing in an upward vertical direction, a bottom side facing in a downward vertical direction opposite the upward vertical direction, at least one horizontal longitudinal dimension, and at least one horizontal transverse dimension, the transverse dimension being perpendicular to the longitudinal dimension;
• the sheet comprising an upper surface on the top side, a lower surface on the bottom side, a sheet thickness extending downward from the upper surface to the lower surface, and a peripheral edge circumscribing an area of the upper surface and an area of the lower surface;
• the upper surface of the sheet having upper surface raised regions and upper surface recessed regions, the upper surface raised regions extending above the upper surface recessed regions;
• the lower surface of the sheet having lower surface raised regions and lower surface recessed regions, the lower surface raised regions being disposed opposite the upper surface recessed regions, the lower surface recessed regions being disposed opposite the upper surface raised regions, the lower surface raised regions extending below the lower surface recessed regions;
• the sheet being adapted and configured to be manually flexed transversely to impart concavity to the upper surface, the flexed sheet being manually insertable through a round pour opening of a beverage bottle in a longitudinal insertion direction, the sheet being biased, when so flexed, partially inserted into the beverage bottle, and released, to unflex transversely so as to conform to at least a portion of an inner perimeter of the round pour opening to form a pour channel extending through the pour opening, the pour channel comprising a distal portion of the upper surface extending longitudinally into the beverage bottle from the round pour opening to a distal end of the pour channel, and a proximal portion of the upper surface protruding longitudinally out of the beverage bottle from the round pour opening to a proximal end of the pour channel, the lower surface of the sheet thus partially inserted and released being adapted and configured so to engage an inner surface of the beverage bottle as to restrict the beverage from flowing between the sheet lower surface and the beverage bottle inner surface, to allow a beverage to be poured from the beverage bottle through the pour channel without the beverage leaking out of the bottle under the pour channel.