An opportunity to get a used 14 gal Blickman conical stainless steel fermenter at a good price has come up. However, I don't want to brew 10 gallon batches. Has anyone brewed 5 gallon batches in a 14 gal fermenter and did it have any affect on the beer. It seems to me that the additional head space might be a problem. I'd appreciate any input you may have before I commit to buying this; even though the price is good, it still costs a few bucks.