Bottles are blow molded using standard blow air and flushed with nitrogen for 30 seconds and sealed approximately one hour after blow molding. The bottles are stored in a 72°F, 50% RH environment for 24 hours and then analyzed for acetaldehyde content in the bottle headspace at 24±1 hrs of age. A suitable standard is prepared and used to calibrate the gas chromatograph. The maximum height of the AA peak for the sample is compared against the AA peak for a known standard to determine the amount of AA within the bottle headspace.