A method for providing a desired atmosphere within a sealed enclosure, wherein at least one product is disposed within the sealed enclosure, the method comprising: evacuating air from the sealed enclosure through at least one conduit to create a first predetermined pressure within the sealed enclosure, wherein the evacuating is controlled by a controller programmed with target parameters, set-points and/or operating instructions to provide a desired atmosphere within the sealed enclosure; injecting gas into the sealed enclosure through the at least one conduit to create an atmosphere with a second predetermined pressure within the sealed enclosure, wherein the injecting of the gas is controlled by the controller in accordance with the target parameters, set-points and/or operating instructions; regulating gas levels and/or pressure levels within the sealed enclosure through the at least one conduit to regulate the atmosphere to a predetermined gas level and/or a predetermined pressure level within the sealed enclosure, wherein the gas levels and/or pressure levels are controlled by the controller programmed with one or more target parameters, set-points and/or operating instructions to provide a substance treatment in combination with the desired atmosphere within the sealed enclosure; and being characterized by applying a predetermined quantity of at least one substance in addition to the atmosphere in the sealed enclosure to the at least one product, wherein the applying of the at least one substance is controlled by the controller in accordance with the target parameters, set-points and/or operating instructions and the at least one substance coats, is absorbed into, or infuses into the at least one product. evacuating air from the sealed enclosure through at least one conduit to create a first predetermined pressure within the sealed enclosure, wherein the evacuating is controlled by a controller programmed with target parameters, set-points and/or operating instructions to provide a desired atmosphere within the sealed enclosure; injecting gas into the sealed enclosure through the at least one conduit to create an atmosphere with a second predetermined pressure within the sealed enclosure, wherein the injecting of the gas is controlled by the controller in accordance with the target parameters, set-points and/or operating instructions; regulating gas levels and/or pressure levels within the sealed enclosure through the at least one conduit to regulate the atmosphere to a predetermined gas level and/or a predetermined pressure level within the sealed enclosure, wherein the gas levels and/or pressure levels are controlled by the controller programmed with one or more target parameters, set-points and/or operating instructions to provide a substance treatment in combination with the desired atmosphere within the sealed enclosure; and being characterized by applying a predetermined quantity of at least one substance in addition to the atmosphere in the sealed enclosure to the at least one product, wherein the applying of the at least one substance is controlled by the controller in accordance with the target parameters, set-points and/or operating instructions and the at least one substance coats, is absorbed into, or infuses into the at least one product.