Supportable pressurizable container having a base cup

A container and an exterior base cup attached thereto;

• the container and base cup being freestanding and having a longitudinal axis therethrough, the container having a curved container bottom and container side walls visible when the container is disposed on a horizontal surface, said container side walls extending outwardly from said curved container bottom and intercepting said container curved bottom at a point of tangency;
• the base cup fitting over at least a portion of said curved bottom of said container and having a base cup bottom allowing said base cup and said container to sit upright on a horizontal surface, said base cup having base cup side walls extending outwardly from the bottom of said base cup and intercepting said side walls of said container at said point of tangency;
• and a mechanical engagement which joins said base cup and said container, said mechanical engagement not intercepting said longitudinal axis and being disposed radially outward thereof, said mechanical engagement comprising complimentary engageable portions disposed on said container and on said base cup, a portion of said mechanical engagement being disposed on said bottom of said container, whereby said side walls of said container are free of said engagement when said base cup is attached thereto, said base cup sidewalls not having said mechanical engagement thereon, wherein said base cup side walls are free of said complimentary engageable portion.