Soft drink container supporting additive containment and selective release

An apparatus comprising:

• a plurality of additive storage cavities configured to contain at least one additive substance, each additive storage cavity comprising:
• a top sealed by an upper thin plate, the upper thin plate includes an upper sealed hole spanning a limited portion of the upper thin plate,
• a bottom sealed by a lower thin plate, the lower thin plate includes a lower sealed hole spanning a limited portion of the lower thin plate and is configured to be vertically aligned with the upper sealed hole,
• each of the upper sealed hole and the lower sealed hole are configured to be punctured by a cavity piercing mechanism, and
• each additive storage cavity is configured to guide the cavity piercing mechanism to pass vertically through the additive storage cavity via puncture of a portion of the upper sealed hole and a portion of the lower sealed hole;
• a lower base liquid container configured to store a base liquid, the lower base liquid container is sealed at its top by a puncturable upper surface;
• and
• the apparatus is configured to release a selected additive substance from a selected additive storage cavity into the lower base liquid container by receiving the cavity piercing mechanism to pass vertically through the selected additive storage cavity into the lower base container.