An apparatus for storing both clean and used baby bottle nipples and collars includes a transparent cylindrical tubular member with a first open end and a second open end, a first nipple-shaped cap pivotably mounted to the first open end, a second cap pivotably mounted to the second open end, and a flexible insert with a nipple-shaped member having a concave side wall affixed to the bottom of the nipple-shaped member, the concave side wall having a top portion and a bottom portion both slidably in contact with the interior of the cylindrical tubular member, the top and bottom portions of the concave side wall able to provide a seal between the side wall and the cylindrical tubular member that prevents a cross-contamination between the clean bottle nipples and collars stored above the flexible insert and the used bottle nipples and collars stored below the insert.