Searched but couldn't find anything. I'm about to do my first extract kit (pilsner). I've learned with fermenting my cider in corny's that I can get away with almost no headspace if the temperature is on the low side. I'm wondering if I can do the same thing with beer. Ideally, I would only use one corny for my 5 gallon kit. I'm thinking I can use a little less water than what the recipe calls for because it's a low gravity beer and it might actually come out better if I do that. If I only had a quarter or half gallon of headspace, would that be enough if I keep the basement at the very low end of the fermentation temperature range? EDIT: I'm using a blowoff tube and don't mind if I lose a pint of beer to blowoff
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