Abstract: One variation of a mixing system includes: a container configured to store consumable beverages; a lid; and a mixer. The lid is configured to transiently couple to the container and includes: a housing; a mixer receptacle; a set of user controls arranged on an outer face of the lid; a set of electronics arranged within the housing and including a motor, a controller configured to actuate the motor responsive to selection of the set of user controls, and a power supply configured to supply power to the motor and the controller; and a set of supports arranged between the motor and walls of the housing and configured to absorb energy output by the motor. The mixer includes: a connector section configured to engage the mixer receptacle to couple the mixer to the motor; and a mixing section configured to mix ingredients in the container responsive to actuation of the motor.