Ingredient container

Ingredient containers for use in a beverage carbonation system are provided. The ingredient container includes a container body defining an interior hollow chamber, and a cap coupled to the opening of the container body. The container body has an opening leading to the interior hollow chamber and a cross-section with a major axis defining a width that is greater than a minor axis defining a depth. The cap has an inlet that is sealed to retain fluid within the container and that is configured to open to allow gas to be injected into the interior hollow chamber. The cap has an outlet that is sealed to retain fluid within the container and that is configured to open to allow fluid within the container to flow out through the outlet valve. The inlet and the outlet are aligned along a first axis that extends parallel to the minor axis of the container body.