I didn't know how to search for this info, so I went lazy and posted a new thread... 8P
Let's say I want to do a brew with an O.G. of 1.080 (or more), using a fly sparge. The first few drops will have a gravity that's a lot higher, let's say 1.100, and will slowly goes down.
Now, the writings goes into the "you stop at 1.010 or when you have your boil volume". If I stop at boil volume, can I expect to have a reading way above 1.010?
Cause if I do the math, the more sparge water I put into the mash, the less sugar I get, the less I get, the more I need to boil to get it (back) to 1.080.
Is this why you lose efficiency when you brew high O.G.? Because you stop before draining all the sugars?