Originally Posted by MrHadack
Yes, there will be a difference in IBU from what the recipe expected and what you will get based on the lower boil volume.
Dry hopping will not add bitterness, only aroma characteristics. So that won't help you.
If you tell me the hop schedule you used (type, alpha acid, and when you added them in the boil) I can help you determine the new IBU you should expect due to the lower boil volume.
Thanks for the response......
1.7 oz Fuggle hops - 60 min of boiling
1 oz Kent Goldings hops - 30 min of boiling
1 oz Kent Goldings hops - 3 minutes of boiling
.5 oz American Crystal for dry hopping - obviously, I haven't done this yet because we brewed last night.