Originally Posted by sooperbrew
So, rookie mistake.
My first AG and I miscounted my mash water. Instead of using 1.25 quarts of water per pound of grain I used 1.6 quarts. I've been mashing now for about 15 minutes. I know I need to use less sparge water now to get my boil volume, but what sort of affect is this going to have on my final product?
It will probably reduce your efficiency somewhat. But a lot of people use a 1.5:1 ratio, so it's not like your mash is ridiculously thin.
Check your pre-boil OG, and if it's really low add enough DME to compensate. Or not. Either way, I wouldn't worry about it too much, you will still make beer!