Abstract: The invention provides an apparatus and method for testing the integrity of a package, the apparatus comprising a first volume detecting means for detecting a first volume of the package at a first position; conveying means for moving the package from the first position to a second position downstream from the first position; compression means for providing a compression force on the package; a second volume detecting means for detecting a second volume of the package at the second position; determining means for determining the integrity of the package based upon a change in volume of the package; and rejecting means for removing packages, the integrity of which is determined by the determining means not to be intact, wherein the determining means is in electronic signal communication with each volume detecting means independently, wherein the determining means is in electronic signal communication with the rejecting means, wherein the compression means is located above a portion of the conveying means and w