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Author: them Big red star, 1000 posts Old School Fool Add to my Favorite Fools Ignore this person (you won't see their posts anymore) Number: of 2840  
Subject: Boil/batch sizing questions Date: 6/24/2003 4:34 PM
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Ok, so I'm fooling around with scaling some recipes in the Recipator, trying to get a handle on volume relationships.

I noticed that in halving a recipe from 5 to 2.5 gallons (chosen for simplicity), keeping the boil volume at 1.5 gallons for both, most ingredients are scaled proportionately (ie, halved), yet the 1 oz hops specified for the 5 gallon batch is reduced to roughly 1/4 oz for the 2.5 gallon batch - not what I expected!

What gives? Am I using the Recipator incorrectly (operator error!)? What am I missing? FWIW, it appears that hops added in the boil are the only ingredients not scaling proportionately - aroma hops are. Is this correct - should I trust the Recipator?

2nd question:
Apart from rescaling the final batch size (and ingredients), what about changing the proportion of the boil volume to the final volume?
Seems to me it would be much easier to handle a smaller volume of wort than a full 5 gallon boil. Is there some reason I can't or shouldn't use the Recipator to adjust recipes to something along the lines of a 1.5 gal boil and a 5 gal total batch?

TIA!
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