Oops! I meant Bray's one-month mead (aka "the BOMM.") It's an interesting recipe, very exact. You start with a gallon of spring water, pour off a certain amount, pour it into your vessel, and mark the water level. Then you pour off an additional amount of water and mark that lower level. I may be a scientist, but physical chem was never my strong suit. As I labored to get the honey to dissolve in the water, the level kept lowering and I kept adding more honey. Then, at some point, the volume increased and the level is above the upper line! Chemists, help me out!