IBU Question

[masskrug]

I can throw 1 oz. of Chinook into the boil for 18 minutes and achieve 25 IBUs

OR

I can scatter it through a 60 minute boil (.333 at 60, .333 at 20, .333 at 7) and achieve the same 25 IBUs.

Will there be a noticeable taste difference between these two recipes? Or can I shave 40 minutes off my (extract) boil by just tossing in 1 oz and boiling for 18 minutes?

Thanks.

 

[Lefou]

Staggering your hops can leave a portion of aroma left over that you might not get with a single bittering addition.
The IBU bittering amount will still be the same mathematically but your perception of the hop flavors and aroma might be different.

Try it and find out.
I like a shorter boil time with a single hop addition because I'm lazy, but don't let that stop you.

 

[Calder]

You will not notice any difference. The later addition (7 minute) will provide some flavor from the late addition of the hop, but it is so small that I doubt you would notice it. Go for the 20 minute boil, and shave 40 minutes off brew day.