I've got a 15 litre, 3.9 gallon batch of hard cider (I juiced the apples myself and lost the will to live after 20kg). Should I get a 3 gallon or 5 gallon carboy?
I read that when moving the cider to a carboy for secondary fermentation I shouldn't leave a pocket of air. Will using a 5 gallon carboy and topping up with a litre of water greatly dilute my cider? Is it best to go for a 3 gallon?
Thanks for you help in advance.