Abstract: An improved sealing assembly for sealing flowable materials within containers for transport on commercial passenger flights includes at least one selectively sealable container having a volume of approximately three fluid ounces. A hand-held, portable sealing mechanism is adapted and constructed to hermetically seal flowable materials within the at least one sealable container. The sealing mechanism is of sufficient compactness and lightness to render it capable of being carried on the person of a user. The sealing mechanism is used to seal flowable materials in to the at least one container in sufficient quantity to permit transportation of the sealed, filled pouch in carry-on baggage of a passenger of the commercial passenger flight.