Originally Posted by Revvy
Also, don't forget to factor the volume the extract displaces in the water...
I once didn't factor in over a gallon of honey in a mead recipe....5 gallons of water and 1 gallon of honey, WILL NOT fit into a 5 gallon carboy...
Ok thanks. I've set my boil volume as 11.4 litres which I guess I'll need to reduce (and adjust hops accordingly) if it doesn't include fermentables.
Edit: Now I'm really confused. If I lower my boil volume to 9 litres, it says prepare 17.52 litres of water for brewing, while the batch size is unchanged at 23 litres