I brewed a few weeks back and I've just come to bottle it today. OG was 1056, FG is 1008, which would weight it in at about 6.3%, way over what I wanted, and an apparent attenuation of 85%. Looks well and smells very hoppy, but none of my flavour from the 20min hop additions is present. I think its because the hops were quite old. They were 2012 harvest and had been open in a kilner jar for 6 months... I want to attempt to rescue it and add some flavour, but I'm unsure how. I have a fresh unopened vacpac of Citra hops, thought about boiling say 20-30g for 20 minutes and using it to melt my priming sugar just before bottling, but I'm unsure of how much water to boil it in to achieve a decent enough amount of flavour to affect my 20l brew lenght. Anyone have any thoughts?