It will still ferment fine, you'll just have low abv. My first ag was a little more than 10 points off. Found that I rushed my sparge runoff. Second time around I hit 83% just by slowing down the runoff. Could be your crush too.
When doing your first few AG's it doesn't hurt to add a couple extra pounds of base malt to make up for lower beginning efficiency. Then when you dial in your process you can back off a bit.
Enter your email address to join: