A powder management system, comprising: an additive manufacturing machine; a first powder management container and a second powder management container each fluidly connected to the additive manufacturing machine, the first container and the second container each comprising: a keg body having an interior for storing a metallic powder; a first port defined by the keg body, the first port fluidly coupled to the keg body interior for transferring powder into and from the interior of the keg body; and a second port defined by the keg body, the second port fluidly coupled to the keg body interior for controlling atmosphere within the interior of the keg body and characterized by further comprising a third port defined by the keg body, the third port offset from the first port and the second port, the third port fluidly coupled with the keg body interior for controlling atmosphere within the interior of the keg body; wherein the first powder management container is connected to a powder conduit for transferring build powder to the additive manufacturing machine; and wherein the second powder management container is connected to a reuse conduit of the additive manufacturing machine for storing unused powder. an additive manufacturing machine; a first powder management container and a second powder management container each fluidly connected to the additive manufacturing machine, the first container and the second container each comprising: a keg body having an interior for storing a metallic powder; a first port defined by the keg body, the first port fluidly coupled to the keg body interior for transferring powder into and from the interior of the keg body; and a second port defined by the keg body, the second port fluidly coupled to the keg body interior for controlling atmosphere within the interior of the keg body and characterized by further comprising a third port defined by the keg body, the third port offset from the first port and the second port, the third port fluidly coupled with the keg body interior for controlling atmosphere within the interior of the keg body; wherein the first powder management container is connected to a powder conduit for transferring build powder to the additive manufacturing machine; and wherein the second powder management container is connected to a reuse conduit of the additive manufacturing machine for storing unused powder. a keg body having an interior for storing a metallic powder; a first port defined by the keg body, the first port fluidly coupled to the keg body interior for transferring powder into and from the interior of the keg body; and a second port defined by the keg body, the second port fluidly coupled to the keg body interior for controlling atmosphere within the interior of the keg body and characterized by further comprising a third port defined by the keg body, the third port offset from the first port and the second port, the third port fluidly coupled with the keg body interior for controlling atmosphere within the interior of the keg body; wherein the first powder management container is connected to a powder conduit for transferring build powder to the additive manufacturing machine; and wherein the second powder management container is connected to a reuse conduit of the additive manufacturing machine for storing unused powder.