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03-22-2011, 12:33 AM   #21
HSB
Recipes

Apr 2010
Arnold, MD
Posts: 85
Liked 3 Times on 3 Posts

Very nice. Thank you.

Decided against the recipe contest entries, huh?

03-22-2011, 12:36 AM   #22
rocketman768

Recipes

Feb 2008
Evanston, IL
Posts: 1,083
Liked 25 Times on 22 Posts

Quote:
 Originally Posted by HSB Very nice. Thank you. Decided against the recipe contest entries, huh?
That thread kinda died...probably because I couldn't provide a really good motivation for recipe submission. But yeah, just didn't collect enough recipes.

03-23-2011, 03:16 AM   #23
brettwasbtd
Awesomeness Award Winnner

Recipes

Apr 2010
Damascus, MD
Posts: 1,800
Liked 162 Times on 118 Posts

How is the Rager IBU formula being calculated? When I enter hop additions for 0.00 seconds I am getting some IBUs. Shouldn't it be 0? I'm trying to accurately adjust some recipes from Brewing Classic Styles and they user rager.

LOVE the Scale recipe in this version! Thanks rocketman!

03-23-2011, 02:11 PM   #24
rocketman768

Recipes

Feb 2008
Evanston, IL
Posts: 1,083
Liked 25 Times on 22 Posts

Quote:
 Originally Posted by brettwasbtd How is the Rager IBU formula being calculated? When I enter hop additions for 0.00 seconds I am getting some IBUs. Shouldn't it be 0? I'm trying to accurately adjust some recipes from Brewing Classic Styles and they user rager. LOVE the Scale recipe in this version! Thanks rocketman!
Thanks!

The Rager calculations are being done according to http://realbeer.com/hops/FAQ.html

The formulas are (from brewtarget's source code):
Code:
```utilization = (18.11 + 13.86*tanh((minutes-31.32)/18.17)) / 100.0;
if( wort_grav > 1.050 )
gravityFactor = (wort_grav - 1.050)/0.2;
else
gravityFactor = 0;
IBU = (hops_grams*utilization*AArating*1000)/(finalVolume_liters*(1+gravityFactor));```
So yeah. If you plug in 0 for the "minutes," you will get 5% utilization. Rager's approximation doesn't actually go to 0 IBUs if you put in hops for 0 minutes.

03-23-2011, 02:51 PM   #25
brettwasbtd
Awesomeness Award Winnner

Recipes

Apr 2010
Damascus, MD
Posts: 1,800
Liked 162 Times on 118 Posts

Quote:
 Originally Posted by rocketman768 So yeah. If you plug in 0 for the "minutes," you will get 5% utilization. Rager's approximation doesn't actually go to 0 IBUs if you put in hops for 0 minutes.
Ya that makes sense. The IBUs are matching "Brewing Classic Styles" recipes for all the other additions. I guess when they wrote the book they edited the 0 min additions to read as 0 IBUs.

03-23-2011, 05:26 PM   #26
Randar
All your Ninkasi are belong to us

Recipes

Sep 2008
Wheeling, IL
Posts: 41,415
Liked 5475 Times on 5277 Posts

Quote:
 Originally Posted by Golddiggie Any chance you could port it over for use on BlackBerries? Compatibility with the OS version 5.x would be sweet...
Ain't happening for a variety of reasons, but for Playbook and future blackberry devices it should be no more complicated than Android... finally.
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03-26-2011, 01:22 PM   #27
jlb307

Recipes

Jan 2011
, PA
Posts: 230
Liked 35 Times on 26 Posts

very nice!

I am having an issue with the new brewday mode.
If I generate a new step, the instructions I type in keep disappearing if I move away from the step I just created. The step is still there, just not the instructions.

03-26-2011, 06:44 PM   #28
Spidey13
Recipes

Jan 2008
Goshen, KY
Posts: 19

Quote:
 Originally Posted by jlb307 very nice! I am having an issue with the new brewday mode. If I generate a new step, the instructions I type in keep disappearing if I move away from the step I just created. The step is still there, just not the instructions.
Same here.

03-26-2011, 07:06 PM   #29
rocketman768

Recipes

Feb 2008
Evanston, IL
Posts: 1,083
Liked 25 Times on 22 Posts

Quote:
 Originally Posted by jlb307 very nice! I am having an issue with the new brewday mode. If I generate a new step, the instructions I type in keep disappearing if I move away from the step I just created. The step is still there, just not the instructions.
Alright, I see it. Thanks for the bug report and I'll fix it ASAP.

03-27-2011, 05:57 PM   #30
cmaz
Recipes

Mar 2011
Starksboro, VT
Posts: 5

Can i assume, based on the simple install instructions, that brewtarget could be unzipped to a usb stick and run from there?

i've actually already done this and it seems to be working, just wanted to ask if you thought there might be any foreseeable problems.

Thanks so much for this software!