A tray is provided for receiving a plurality of pre-filled syringes each having a tubular body defining an outer surface and a chamber having an open first end sealed with a plug and an open opposite second end configured to establish fluid communication with a hypodermic needle, wherein a flange extends from the tubular body at the first end. The tray includes a plate defining a plurality of through-going ridges and a plurality of through-going grooves parallel to the ridges, wherein the ridges are interconnected with the grooves. A multitude of open apertures is defined at the ridges, wherein the apertures are configured for (a) receiving the flange of a syringe received between two adjacent ridges, and (b) permitting the passage of a gas through the plate to contact the outer surface of the syringe.