Boiling Hops!

If you haven't read anywhere yet, hops offer three things to beer:

1)  Bitterness
2)  Flavor
3)  Aroma

And believe it or not, there are specific ways to extract the bitterness, flavor and aroma. The chart below gives a good visual on how to extract each based on the boiling times:

The timing that we use is:

60 minutes for bitterness

15 minutes for flavor

5 minutes for aroma

We came up with these timings based on various other recipes we found online. They seem to coincide with the chart above, so we are confident this is a good basis.