IBU question

[FEARDIZ]

I have a recipe that called for
0.7 oz 5.5% hops with 6.25 gallon boil at 13.4 IBU 85 min ( 90 min boil )
and
0.35 oz 5.5% hops at 60 min with 6.3 IBU

I can't remember the conversation, but at the LHBS, the guy seemed to think that I needed about 4 oz total hops because the hops he had were not as strong.. and the 1oz of hops will be like nothing ( think he sort of laughed )
So I got the 4 oz of hops, as the 'expert' suggested

When I goto brew the other day, I check the package on the hops and they are 5.4% , so I figured 5.4, 5.5% close enough.. and what is this guy talking about.

So I used the 1 oz total hops as the recipe called for.. Did I screw the pootch on this or was I correct im my thinking..

 

[RoaringBrewer]

Can't say for sure without knowing the gravity of the wort, etc., but I think as long as you did the full, 6.25g boil, then you used the appropriate amount (1oz)... 4oz. of hops at those timing marks would give you a much more bitter beer.

Not sure what the LHBS 'expert' was talking about - I think he was out of his gourd and just wanted to sell you 4oz. of hops now that they are expensive!

If you boiled less than the 6.25g, then you would want to use more hops as utilization drops in higher gravity worts...

 

[david_42]

I'd say he is a hophead and never made a beer that had "only" 20 IBU.

So, now you have enough hops for three more batches.

 

[FEARDIZ]

ok thanks for the advice