Portable system for dispensing controlled quantities of additives into a beverage

A group processing system comprising:

• a control processing portion (CPP) that performs processing;
• a system database that contains data used by the CPP;
• a container assembly that is associated with a first member user, the container assembly comprising:
• a container having a known storage capacity for storing a liquid;
• a dispensing assembly, the dispensing assembly dispensing variable, non-zero quantities of one or more additives into the liquid stored in the container;
• one or more vessels that each contain one of the additives, of the one or more additives, to be dispensed into the liquid;
• a container database;
• and
• a processing portion, associated with the container database, that performs processing including performing dispensing that dispenses at least one of the additives into the liquid;
• and
• the CPP performing processing including:
• interfacing with a lead user including establishing the lead user based on input of credentials from the lead user;
• interfacing with the lead user to form a group, and the group including at least the first member user;
• interfacing with the lead user to input a dispense command;
• the processing portion retrieving the dispense command;
• the processing portion performing the dispense command to dispense an additive, of the one or more additives;
• and
• the processing portion performing the dispense command includes the processing portion outputting a communication to the first member user regarding the dispense.