Disclosed here is an autoclave system for curing a part. The autoclave includes a gas recirculation system, at least partially external to a vessel pf the autoclave system and fluidly coupleable to the vessel such that gas contained in the vessel is delivered to the gas recirculation system, passed through the gas recirculation system, and recirculated back into the vessel. The autoclave system also comprises at least one mold core, located within the vessel. The mold core comprises a conduit extending through the mold core and the mold core is configured to define a shape of the part. The gas delivered to the gas recirculation system from the vessel is gas received directly from the conduit of the mold core.