Electric Brewing Supply 30A BCS Giveaway!


Home Brew Forums > Home Brewing Beer > Brewing Software > Beer calc vs beersmith regarding OG
Reply
 
LinkBack Thread Tools
Old 03-24-2009, 01:34 AM   #1
Pharmguy
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2008
Location: Michigan
Posts: 261
Default Beer calc vs beersmith regarding OG

Well, I broke down and bought beersmith. I have been using beer calculus but it is limited. I was playing around just getting used to it and put the same recipe in both. Same everything...boil volume, batch size, malts, hops, ect. So the IBU's were close but the Og was way off. 1.058 vs 1.052. Is this a common issue between the 2 programs?

__________________
Pharmguy is offline
 
Reply With Quote Quick reply to this message
Old 03-24-2009, 09:29 AM   #2
Denny's Evil Concoctions
Grande Megalomaniac
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Denny's Evil Concoctions's Avatar
Recipes 
 
Join Date: Oct 2005
Location: West Kelowna BC, Canada
Posts: 7,767
Liked 51 Times on 42 Posts

Default

Best way to do it is find out the grain analysis for each grain you have and enter that info into beersmith.

__________________
Denny's Evil Concoctions is offline
 
Reply With Quote Quick reply to this message
Old 03-24-2009, 11:18 AM   #3
AnOldUR
fer-men-TAY-shuhn
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
AnOldUR's Avatar
Recipes 
 
Join Date: Mar 2007
Location: New Jersey
Posts: 6,272
Liked 610 Times on 441 Posts
Likes Given: 456

Default

Also, things like boil off rate and dead space under the equipment tab will effect your results in BeerSmith.

__________________
. . . once and a while I'll spout some jaded jackassery. — Billy-Klubb
AnOldUR is offline
 
Reply With Quote Quick reply to this message
Old 03-24-2009, 12:51 PM   #4
Pharmguy
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2008
Location: Michigan
Posts: 261
Default

Deadspace? Boil off rate?

__________________
Pharmguy is offline
 
Reply With Quote Quick reply to this message
Old 03-24-2009, 01:06 PM   #5
AnOldUR
fer-men-TAY-shuhn
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
AnOldUR's Avatar
Recipes 
 
Join Date: Mar 2007
Location: New Jersey
Posts: 6,272
Liked 610 Times on 441 Posts
Likes Given: 456

Default

Quote:
Originally Posted by Pharmguy View Post
Deadspace? Boil off rate?
Just to the right of the box marked "Equipment" are two buttons. The right one is "Details". Click on that. In the pop-up you'll see places to enter things like Evaporation Rate, Lost to Boil Trub, Lauter Tun Deadspace . . . They will have an effect on gravity and hop utilization.





Edit:
You may have to experiment with your system for a while to get these numbers exact.

The numbers in "Brewhouse Efficiency" also have to be dialed in for your system.
__________________
. . . once and a while I'll spout some jaded jackassery. — Billy-Klubb
AnOldUR is offline
 
Reply With Quote Quick reply to this message
Old 03-24-2009, 08:30 PM   #6
Weezknight
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
Weezknight's Avatar
Recipes 
 
Join Date: Mar 2009
Posts: 332
Liked 2 Times on 1 Posts

Default

Quote:
Originally Posted by Pharmguy View Post
Well, I broke down and bought beersmith. I have been using beer calculus but it is limited. I was playing around just getting used to it and put the same recipe in both. Same everything...boil volume, batch size, malts, hops, ect. So the IBU's were close but the Og was way off. 1.058 vs 1.052. Is this a common issue between the 2 programs?
I just found the same things. I've been using BeerSmith and just heard about BeerCalculus. My results were the same, IBU within .1, SRM within .6, but the OG for BeerCalc was 1.050, and 1.044 for BeerSmith. I'm guessing it's a difference in how their ingredients are loaded into their calculations.
__________________
Weezknight is offline
 
Reply With Quote Quick reply to this message
Old 03-24-2009, 08:56 PM   #7
FlyGuy
Feedback Score: 0 reviews
 
FlyGuy's Avatar
Recipes 
 
Join Date: Jan 2007
Location: Calgary, Alberta
Posts: 3,618
Liked 132 Times on 41 Posts
Likes Given: 7

Default

It is unlikely to be a software issue (it is probably safe to assume each calculates gravity correctly). It is far more likely that there is some difference in the way you have your recipes set up in each system (check to be sure the obvious things are all similar, like efficiency).

__________________
Cheap 10 gal cooler MLT$3 AutosiphonAluminum Pot FAQEasy Steam Injection Mash SystemMake a Frozen Yeast Bank
Improving Stovetop Boiling Improving AG Efficiency
FlyGuy is offline
 
Reply With Quote Quick reply to this message
Old 03-24-2009, 10:31 PM   #8
Pharmguy
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2008
Location: Michigan
Posts: 261
Default

Yeah, Im sure you are right. I just dont know what I am checking/adjusting in beersmith. I went to the tab AnOldUR suggested and played around but when it comes down to it....Im not sure how much is evaporated and lost to boil trub,deadspace, ect. I am sure it is different for each batch brewed so I will just go with the averages unless someone has a better idea.??

__________________
Pharmguy is offline
 
Reply With Quote Quick reply to this message
Old 03-24-2009, 11:35 PM   #9
Brickhouse
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2008
Location: Modesto
Posts: 34
Default

Quote:
Originally Posted by FlyGuy View Post
(it is probably safe to assume each calculates gravity correctly)
Oh really? In the three years I used Beersmith it never, ever, accurately predicted my preboil gravity. However, using a pencil and the correct information from the malster I was able to accurately and repeatedly predict my gravity. It may use a formula that with the correct information and variable values, will spit out a number you can use. I was never able to get it to work for me. If someone else has - more power to you and brew on brutha.
__________________
Brickhouse is offline
 
Reply With Quote Quick reply to this message
Old 03-25-2009, 01:37 AM   #10
FlyGuy
Feedback Score: 0 reviews
 
FlyGuy's Avatar
Recipes 
 
Join Date: Jan 2007
Location: Calgary, Alberta
Posts: 3,618
Liked 132 Times on 41 Posts
Likes Given: 7

Default

Quote:
Originally Posted by Brickhouse View Post
Oh really? In the three years I used Beersmith it never, ever, accurately predicted my preboil gravity. However, using a pencil and the correct information from the malster I was able to accurately and repeatedly predict my gravity. It may use a formula that with the correct information and variable values, will spit out a number you can use. I was never able to get it to work for me. If someone else has - more power to you and brew on brutha.
I can get Beersmith to match what my hand calculations or my brewing spreadsheet tell me. So I know it is making the correct gravity calculations -- I don't doubt the software. It also gives me the same gravities from any recipes I have imported from ProMash.

If you were getting the wrong numbers, you probably failed to set up your equipment profile correctly. That's typically the source of error.
__________________
Cheap 10 gal cooler MLT$3 AutosiphonAluminum Pot FAQEasy Steam Injection Mash SystemMake a Frozen Yeast Bank
Improving Stovetop Boiling Improving AG Efficiency
FlyGuy is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Beersmith - How to calc. how much DME to add? Brewme Brewing Software 2 10-25-2009 05:21 AM
AAU Calc. vs Beer Smith AAU Calc. C2H6O Beginners Beer Brewing Forum 5 06-06-2009 09:55 PM
Please help me calc. my efficiency HoppyDaze All Grain & Partial Mash Brewing 7 03-23-2009 05:59 PM
Beersmith gravity calc Cos Brewing Software 4 09-21-2007 03:07 AM
Question on BeerSmith and sparge water calc... the_bird All Grain & Partial Mash Brewing 4 12-02-2006 03:58 PM