Beverage filtration device

A beverage filtration device, comprising:

• a lid body, the lid body including:
• a connection end;
• a top end having an opening therein, and
• a pouring spout body encompassing the opening;
• and
• a stem body the stem body including:
• an internal housing configured to hold an ion exchange resin-filed cartridge therein;
• a cap region configured to couple to the connection end of the lid body to thereby form a first liquid-tight seal coupling between the connection end of the lid body and a top end of the ion exchange resin-filed cartridge, and, form a second a liquid-tight seal coupling between a base region of the internal housing and a bottom end of the ion exchange resin-filed cartridge;
• a collar, wherein a first portion of a wall of the collar is sized to fit inside a mouth of a beverage container and a second portion of the wall sized to be located outside of the mouth,
• a beverage conduit spanning the collar, wherein a first opening of the conduit opens to the base region of the internal housing and a second opening of the conduit opens to an interior of the beverage container, and
• a stem body air tube extending through the collar, wherein:
• a proximal opening of the stem body air tube opens to an air vent hole located in the second portion of the wall of the collar, and
• a distal opening of the stem body air tube opens to the interior of the beverage container.