Originally Posted by VanHorneDog
we do 5 gallons with 6.5 gallons for boil.
last couple times i took a reading of the last part of the runnings and it was like 1.018, so obviously we still had plenty of sugar in there.
There is a bit of debate about extracting tannins during fly sparging.
The rule of thumb if you follow it is to stop sparging when when the runnings reach 1.010.
So, you left some fermentables behind... but if you hit you volume and your target OG then you had a successful brew