Abstract: A moisture transmission prevention barrier or pocket for separating the sandwich filling material from the bread to prevent any liquid or moisture, contained in the sandwich filling material, from being transferred to and/or absorbed by the bread during the temporary storage of the assembled sandwich prior to consumption by a purchaser. The moisture transmission prevention barrier or pocket is preferably manufactured from an FDA approved plastic material and has a suitably sized internal compartment to accommodate a desired quantity of the sandwich filling material therein. The moisture transmission prevention barrier or pocket/sandwich filling material unit is then received by a slot or recess formed in a piece of bread, or between inwardly facing surfaces of the two slices of bread, to from an assembled sandwich. Prior to consumption of the assembled sandwich by the purchaser, the moisture transmission prevention barrier or pocket is removed from the bread, e.g.