Author Topic: Scaling recipes  (Read 736 times)

Offline duxx

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Re: Scaling recipes
« Reply #15 on: March 14, 2014, 11:51:29 PM »
So most of you have found that recipes scale linearly except for the boil off rate?  During the below zero days of January and February, when I didn't have the willingness to freeze my butt off brewing AG in the garage, I tried James Spencer's 15 minute boil extract method in the kitchen (Basic Brewing Radio).  When I linearly scaled down some recipes that I wanted to try from Jamil's Brewing Classic Styles I found that the color was too light in the darker beers.  My brown ales were amber and my stouts were brown.  Yes, I'm sure I double checked my math for steeping grain additions.  I had to doctor the finished beers up with Sinamar to get the right color.  So, I'm just curious if anyone else has noticed that they need proportionally more dark grains in smaller batches?
"Tan and lean like a longneck bottle."  Zac Brown Band.

Offline dmtaylor

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Re: Scaling recipes
« Reply #16 on: March 15, 2014, 04:57:13 AM »
I have been brewing small batches for many years.  Everything scales linearly but I do use homebrewing software just to make certain.  I have not noticed any general rules like you always need to add more dark grains -- have not noticed that at all.  The big adjustment to me when stealing others' recipes is always my 85-90% efficiency.  It is easier to get high efficiency with small batches because you need to sparge more to account for the high boiloff rate.
Dave

"This is grain, which any fool can eat, but for which the Lord intended a more divine means of consumption. Let us give praise to our Maker, and glory to His bounty, by learning about... BEER!" - Friar Tuck (Robin Hood - Prince of Thieves)