Beverage tumbler

A beverage tumbler insert adapted to be insertable into a tumbler body, the beverage tumbler insert comprising:

• a partitioning system removably insertable into a tumbler body interior, the partitioning system comprising walls that divide the tumbler body interior into a beverage storage chamber and a sipping chamber when the beverage tumbler insert is positioned within the tumbler body,
• wherein when the insert is positioned within the tumbler body a beverage within the beverage storage chamber can flow into the sipping chamber, and wherein the beverage in the sipping chamber can be sipped by a user without directly exposing beverage in the beverage storage chamber to ambient temperature.

A method of sipping a beverage from a beverage tumbler, the method comprising:

• providing a beverage tumbler comprising a tumbler body comprising a sidewall and bottom that define a tumbler body interior and a partitioning system within the tumbler body interior, the partitioning system comprising walls that divide the tumbler body interior into a beverage storage chamber and a sipping chamber,
• manipulating a valve to allow beverage in the beverage storage chamber to flow into the sipping chamber, and
• sipping the beverage in the sipping chamber.