IBU's are a measurement of alpha acid concentration from hops...
That's not quite true.
You're right, I was conflating. IBU's are a subjective measurement of an objective phenomenon... brought about by alpha acids.
I've seen pliny clones with over 300IBU's. I just brewed a beer that should be around 280 IBU last weekend. all in all this doesn't seem like anything to news worthy.
Thanks for the clarifications!
How do they measure IBU after the fact? I don't think I've ever heard how this is done... IS there an objective concentration at which the acids can be quantified?
Gas Chromatigraph, IIRC.
And I believe that the human threshold of bitterness perception stops abruptly at 100 IBU, therabouts.
You've seen Pliny clones that are estimated at 300 IBU by formulae that are not designed to estimate in that range. Those estimates are ridiculous.
IIRC, the sheet Vinnie handed out at NHC said that Pliny measures 97 IBUs.
I've seen them range from the 67IBU up to the 300's
from a quick search "pliney clone recipe" these are on the first page of listings.
Pliney Clone at 243IBU
Pliney Clone 246IBU
Good for you. My point is that you have seen Pliny clones that have estimates (bad ones) of IBUs. You have yet to convince me that you have seen a Pliny clone with IBUs measured at any level.
...all in all this doesn't seem like anything to news worthy.
I've seen them range from the 67IBU up to the 300's
from a quick search "pliney clone recipe" these are on the first page of listings.
Pliney Clone at 243IBU
Pliney Clone 246IBU
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