Bottle assembly with improved seal

In a bottle assembly for storing and retailing a liquid substance generating gases whenever heated or contaminated, said bottle assembly comprising:

• a bottle made of a plastic material that is inert to said liquid substance and gases, said bottle comprising a cylindrical neck with a threaded external surface and a circular upper edge of a given external diameter that defines a circular opening;
• cap sized to fit onto said neck, said cap having a flat inside top wall that is circular in shape, and a surrounding skirt that downwardly projects from the periphery of said wall and has an internal surface that is stretched as to make said cap screwable onto said neck of the bottle;
• and
• a permanent breathing seal in the form of a disk seal made of a breathable plastic foam that is inert to the liquid substance and has a porosity selected to allow the gases to pass therethrough but not the liquid substance, said disk being sized to fit within said cap and extend flat against the wall thereof, and to bear against the circular upper edge of the neck to seal the bottle while allowing it to breath when the cap is screwed onto said neck,
• the improvement wherein:
• the permanent breathing seal is freely mounted within the cap adjacent the flat inside top wall thereof;
• a peelable breathing seal made of the same breathable plastic foam as the permanent seal is provided to sealingly close the circular opening of the bottle until the same is opened for the very first time, said peelable seal being in the form of a thin disk that is sized to extend across the circular opening and is glued to the upper edge thereof, said disk having an external diameter larger than the external diameter of the upper edge of neck to define an annular flop projecting outwardly from the neck around all the periphery of the upper edge thereof, said flap allowing the peelable seal to be grasped with two fingers and easily peeled off whenever desired.