Multi-axial Turbulence Induction Container

A container comprising:

• a vessel extending along a longitudinal axis from an opening into the vessel to a terminal end of the vessel, the vessel comprising an interior volume defined by an interior wall of the vessel, wherein:
• the interior wall comprises a geometry comprising a series of polyangular cross sections orthogonal to the longitudinal axis, wherein:
• a largest polyangular cross section is between the opening and the terminal end,
• a curvature of the interior wall with reference to the longitudinal axis comprises a first inflection point before the largest polyangular cross section and a second inflection point after the largest polyangular cross section, and
• adjacent polyangular cross sections are rotated relative to each other about the longitudinal axis and along a helical path.

A method comprising:

• providing a vessel, extending along a longitudinal axis from an opening into the vessel to a terminal end of the vessel, the vessel comprising an interior volume defined by an interior wall of the vessel, wherein:
• the interior wall comprises a geometry comprising a series of polyangular cross sections orthogonal to the longitudinal axis, wherein:
• a largest polyangular cross section is between the opening and the terminal end,
• a curvature of the interior wall with reference to the longitudinal axis comprises an inflection point before the largest polyangular cross section and an inflection point after the largest polyangular cross section, and
• adjacent polyangular cross sections are rotated relative to each other about the longitudinal axis and along a helical path;
• introducing into the vessel:
• a fluid;
• and
• a substance to be mixed into the fluid;
• and
• shaking the vessel along the longitudinal axis such that the geometry induces multi-axial turbulence in the fluid such that the substance is mixed into the fluid.

A handheld drinking vessel extending along a longitudinal axis from a drinking opening to a terminal end, the handheld drinking vessel defining an interior volume and comprising means for inducing multi-axial turbulence, wherein:

• the multi-axial turbulence comprises:
• rotational flow around the longitudinal axis,
• turbulence around a largest cross-section, relative to the longitudinal axis, of the interior volume, and
• longitudinally reversing and radially outward flow at a bottom of the interior volume, and
• the means for inducing multi-axial turbulence is configured to generate the multi-axial turbulence by a boundary of the interior volume.