I am making a small batch (stout), 3 gallons. I transferred the Primary to my 3 gallon Carboy and it was filled almost to the top. I then boiled some cocoa, and lactose and put on top. It was pretty foamy on top so i put the plug on and swirled it around a little to get it mixed up. I then remembered that your not supposed to get Oxygen in their. ****. Im thinking it was pretty full and the plug was on so i dunno oxygen actually got in there...hopefully.
What does it mean exactly?
What does it mean exactly?