Thu Mar 17, 2011 5:40 pm
I am notorious for making big beers. A couple things tend to cause the barleywine to be too sweet. The big one I see in your case is the use of malt extract. Malt extract, especially LME, tends to have quite a bit of unfermentable sugar. You need to have a couple pounds of sugar as part of your fermentables in place of some of the extract in order to counteract those long chain sugars.
The yeast is another problem. Actually two potential problems. The first is the size of the yeast pitch. My normal procedure is to brew a smaller beer ( <1.060 gravity ) so I can use most of that yeast cake to ferment the barleywine. Doing just a starter or (heaven forbid) just a smackpack or vial will be drastically underpitching. The high starting gravity creates high osmotic pressure which damages the yeast cells. You want to be able to kill off a bunch of yeast cells and still have plenty survivors to ferment the sugars.
A second yeast problem is that of racking off the yeast cake too early. The early Charlie Papazian books have left folks with a fear of leaving the beer on the yeast too long. As a result, the "conventional wisdom" is that you rack to secondary after a week. You don't want to take that much yeast out of a barleywine that early. Four or five weeks for a big beer like that will not cause a problem with off tastes from the yeast. The BW needs all the help it can get for as long as possible.
Oxygenation at the beginning of fermentation is also critical. Shaking the carboy is not enough for a big beer like this. At a minimum, use an aquarium pump to force air in there for fifteen minutes or so at the time you pitch. Another dose of air or 02 at 18-20 hours will also help.
You don't have a lot of options at this point for fixing this beer. You can try the high krausen yeast trick, but your best bet is time. Over the space of a year, I often have a barleywine drop another 6-8 points sitting in a keg at room temperature. Don't worry about hops fading, you can still dry hop after a year of aging.
If all else fails, you can always blend with an imperial IPA.
Hope this gives you a couple things to think about. Now get started on your next big beer.
Wayne