kadozen
Well-Known Member
So, I read on here that the right time to pull a Pre Boil gravity sample was right before the boil starts. I'm just curious about the mechanics there, and what's going on?
I took samples (refractometer and hydrometer) as it was heating and saw it rise, but not sure why. All samples were cooled within a few degrees of calibration temp for the hydro samples, so I'm guessing it's not a clear cut "density" thing, unless the heat and density change do something kettle side.
Just wondering about the nuts and boots of the interaction.
I took samples (refractometer and hydrometer) as it was heating and saw it rise, but not sure why. All samples were cooled within a few degrees of calibration temp for the hydro samples, so I'm guessing it's not a clear cut "density" thing, unless the heat and density change do something kettle side.
Just wondering about the nuts and boots of the interaction.