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Old 03-15-2013, 05:41 PM   #1
Ondori
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Default iBrewmaster calculations off?

So, I am brewing an American IPA tomorrow, but when I put the ingredients in my iBrewmaster the numbers don't match up at all. The IBUs are supposed to be 65 and they are coming out close to 90, and the estimated OG is pretty low as well unless I bump up my efficiency to 75, instead of their 70 that is suggested. Is this normal, and I should just roll with it? My profile is correct and ibrewmaster has never steered me wrong in the past lol I am just afraid of the beer becoming unbalanced.

Here is the recipe http://www.homebrewtalk.com/f69/my-2...can-ipa-81478/

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Old 03-15-2013, 10:43 PM   #2
alestateyall
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I get 1066 OG with 5.5 gallon batch size. Probably the person who wrote the recipe left behind some wort whirlpooling (or some such) which is unaccounted for.

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Old 03-16-2013, 12:20 AM   #3
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I also use ibrewmaster. I brewed a recipe that said the OG should be 1.066 at 70% efficiency. I put it in ibrewmaster and it came out 1.058 at 75% efficiency. I was concerned but brewed as planned. After wort boil and cool down was dead on at 1.058. IBUs were off a little from the recipe but it tasted great. Ibrewmaster has been pretty accurate for me.

RAHAHB!!!

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Old 03-20-2013, 03:39 PM   #4
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I had started a thread on the same a while back. Compared to brewTarget that I was using before the efficiency numbers are way different. Just had to brew a few batches to get used to the different numbers and adjust my recipes according to the new efficiencies.

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