A glucose sensor product is manufactured by a process that maintains the sterility of the glucose sensor while allowing gaseous manufacturing by-products to be vented from the inside of the glucose sensor package. The method begins by placing a glucose sensor assembly into a plastic package tray having a sealing surface surrounding an opening. The method continues by covering the opening with a microbial barrier material such that the microbial barrier material overlies the sealing surface, forming a seal between the sealing surface and the microbial barrier material, resulting in a sealed package tray containing the glucose sensor assembly, and sterilizing the glucose sensor assembly inside the sealed package tray. The microbial barrier material maintains sterility of the glucose sensor assembly while allowing volatile by-products outgassed from the glucose sensor assembly and the plastic package tray to pass therethrough.
