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Black Citra IPA problems with OG

Post #1 made 12 years ago
by reece1804
I have entered recipe loosely based on Northern Brewers Black IPA into The Calculator and am having problems. I hope someone on here can help...

The recipe has an OG of 1.075 (including 450 grams of dextrose late in the boil) which according to The Calculator requires me to have 8.1kg of grain for my 20ltr batch with an efficiency of 70%. This will make 1.069 before adding the dextrose and 1.075 after.


My grain supplier thought the grain bill seemed too large for a 20ltr batch so he put the numbers through his ProMash software and came up with 1.085 OG 20ltrs at 70% with out the dextrose. This would make 1.091 after adding the dex!

Can anyone please tell me where I have gone wrong???

I've attached the spread sheet.
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Post #2 made 12 years ago
by Hints
Welcome reece,

The Calculator has been superseded for a long time by the BIABacus. Use pre-release version, 1.3T. You can find a copy in this post. In the BIABacus, everything is automated for you, including efficiency.

The BIABacus also uses Clear Brewing Terminology. The reason for the difference you have with The Calculator and ProMash is that the two 'programs' terms can mean entirely different things. For example, 'efficiency' can mean either kettle or fermentor efficiency. 'Batch size' can mean anything from end of boil volume through to volume into packaging. The lack of clear brewing terminology in software makes it very hard to compare "apples with apples" because the terminology is so vague.

Try putting your recipe in to the BIABacus and re-posting it here. Also make sure you save it only as an .xls file.

[Please note that Hints does not reply to direct questions.]
Last edited by Hints on 07 Aug 2014, 14:18, edited 1 time in total.
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