I’m toying with the idea of going BIAB and am trying to figure out how big of a kettle I’ll need for both 5 and 10 gal batches using a no sparge BIAB method.
I have seen the following formula…
Total water volume = final batch size + trub/hop loss + boil off loss + grain absorption
But the one thing I feel like it doesn’t address is the amount of water displaced by your grain. In other words, when I put a bunch of grain in a pot with water, the water level will be pushed higher as a result. Is the simple answer that the displacement is offset by the water absorbed by the grain?
Appreciate any help.