Sorry if this has already been discussed.. maybe I'm not searching it correctly, but everything I own is for brewing 5 gallons at a time. Can I buy a 1-gallon kit and brew if properly in the equipment I own? I'm not so much concerned about the steeping/boiling process, but is there an issues with only having a gallon or two of beer fermenting in a 5-gallon pail? Is that too much space? Will the beer not ferment properly? Thanks!