Beverage shaker and juicer

A beverage shaker-juicer system comprising:

• a bottom container subsystem;
• a lid subsystem;
• a juicer subsystem;
• a cap subsystem;
• the bottom container is operative to contain liquids to be mixed by shaking;
• the lid subsystem is operative to couple atop the bottom container subsystem;
• the lid subsystem is operative to couple to the juicer subsystem;
• the juicer subsystem is operative to contact juice-containing portions of a fruit portion and support juice extraction when the juice-containing portions are pressed and rotated against a plurality of juicer ridges comprising the juicer subsystem;
• the cap subsystem is operative to grab, hold and rotate the fruit portion such that its juice-containing portions are pressed against the plurality of juicer ridges of the juicer subsystem;
• and
• the cap subsystem comprises a plurality of cap ridges operative to support grabbing, holding and rotating the fruit portion during juice extraction.