Ss Brewing Technologies Giveaway!

Home Brew Forums > Home Brewing Beer > Brewing Software > Beeralchemy - adjusting gravity pre-boil
Reply
 
LinkBack Thread Tools
Old 02-26-2010, 06:30 PM   #1
willjschmidt
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2010
Location: CA
Posts: 9
Default Beeralchemy - adjusting gravity pre-boil

I'm still dialing in my all-grain process so my efficiency has varied quite a bit. I'd like to use beeralchemy to adjust my gravity pre-boil so I end up hitting my target OG post-boil. I want to see how much malt extract I need to have if I am under or how much water to add if I'm over, in order to hit the target pre-boil gravity. Does beeralchemy do this, and if it does, could someone tell me how? Thanks!

__________________
willjschmidt is offline
 
Reply With Quote Quick reply to this message
Old 03-17-2010, 02:05 PM   #2
stoptime
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: Chicago
Posts: 7
Default

If there is, I haven't found a way. But this has helped me understand how to do this:
http://www.brewboard.com/index.php?showtopic=31009

There's a formulas in there that should help you - read it sober and well caffeinated

I took what I could and plugged it into a spreadsheet so I can just plug in the numbers and easily see how much DME to add, or how much to cut/lengthen my boil time, etc. I haven't figured out the dilution equation yet - so what I tend to do is add water to the kettle a couple quarts at a time and take readings until I'm close to my pre-boil target. Or I just decide to use the higher gravity and see how the beer turns out. In one case I was under, and instead of adding DME I just rolled with it and made a nice dry IPA that was probably the best beer I'd made to date.

Also, you'll need to know your volumes for accuracy - cheers!

__________________
stoptime is offline
 
Reply With Quote Quick reply to this message
Old 03-18-2010, 01:32 AM   #3
Airborneguy
Adjunct of the Law
HBT_LIFETIMESUPPORTER.png
Feedback Score: 1 reviews
 
Airborneguy's Avatar
Recipes 
 
Join Date: Sep 2009
Location: Isle of Staten
Posts: 10,856
Liked 838 Times on 621 Posts
Likes Given: 1105

Default

It does tell you how much water to add if you are over due to boil loss.

__________________
Fermentor(s):
Lagering:
Bottled: Atonement Brown Porter
Airborneguy is offline
 
Reply With Quote Quick reply to this message
Old 03-18-2010, 01:10 PM   #4
stoptime
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: Chicago
Posts: 7
Default

Really? Can you please explain that feature - I could've used it on my last batch but didn't understand how to do it. I see a "water added to dilute" field within the batch editor, but it doesn't help/change the gravity readings.

__________________
stoptime is offline
 
Reply With Quote Quick reply to this message
Old 03-18-2010, 07:44 PM   #5
Airborneguy
Adjunct of the Law
HBT_LIFETIMESUPPORTER.png
Feedback Score: 1 reviews
 
Airborneguy's Avatar
Recipes 
 
Join Date: Sep 2009
Location: Isle of Staten
Posts: 10,856
Liked 838 Times on 621 Posts
Likes Given: 1105

Default

That's the right feature. That listed amount of water, if added, would get you to your target gravity per the recipe. That is only for when you boil off too much and it drives the OG too high though, not for lost efficiency or over efficiency.

__________________
Fermentor(s):
Lagering:
Bottled: Atonement Brown Porter
Airborneguy 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
Adjusting gravity with more H2O nasmeyer Beginners Beer Brewing Forum 4 04-15-2009 03:47 PM
how can I determine post-boil gravity from a pre-boil gravity reading? snailsongs General Techniques 5 03-05-2009 03:42 PM
Adjusting gravity with Beersmith climateboy Brewing Software 6 12-08-2008 04:35 PM
weird way of adjusting wort gravity? beretta All Grain & Partial Mash Brewing 4 07-08-2008 07:15 AM
Adjusting to hit target gravity Dark_Ale Recipes/Ingredients 2 12-28-2007 05:16 PM