I bottled 2 separate 5 gal. batches of beer a week ago, and wondering how much the head space left in the beer bottle has an affect on the carbonation (or anything else for that matter). I didnt have a bottling wand at the time, so I filled the bottles from the spigot. In the 12 oz stubby bottles, I tried to leave about an inch or so from the lip of the neck of the bottle. Some went a touch higher, some a touch lower. In the 22 oz bottles, I left more room, about an inch and a quarter to an inch and a half.
My first batch was WAY overcarbonated so I want to avoid that, not sure if it was due to the head space, too much sugar, etc.
If I left too little room, is there anything I can do? Can I pop the caps, pour some out and re-cap? Or would that disturb the carb process?