Date: Tue, 19 Mar 96 13:55:42 CST
From: Algis R Korzonas
Subject: Fill Level Experiment
Back in January, we had a discussion regarding the effect of fill level on carbonation for batch-primed beers. Last night I tasted the results of my experiment. The beer was an all-grain American Pale Ale and was primed with 2/3 cup of corn sugar for the 4.5 gallons in the priming carboy. I filled bottles at four different levels:
I had my wife Karen randomly assign numbers to the bottles and the glasses were labeled only with numbers. I was in the basement while she poured, so I could not hear the difference in "fffffft." She poured the same amount in all four glasses, down the side, in exactly the same way. The glases were all beer-clean and at the same temperature. The beers were all at 55 degrees F. The beer had been bottled on 1/26/96 and this test was done on 3/18/96. The bottles were conditioning in a dark room that was between 64 and 67 degrees F. Here are my results:
