As I have only been brewing for about 1 year, I would like to start experimenting more. But with 1 gallon recipes.
With the cost of shipping, purchasing the 1 gallon kits from NB just aren't worth it. So I am looking into converting a few recipes at a time and doing 1 gallon batches. I would really like to keep them all-grain if possible.
Has anyone done this? Can you provide any guidance? hints? tips?
Is it as simple as taking an exciting recipe and just changing the VIF in the BIABacus?
Any help would be appreciated.
Robert
Post #2 made 12 years ago
Yes rdeselle its pretty much as simple as that.
Bear in mind with smaller volumes though you may have to pay more attention to temperatures. Smaller thermal mass etc.
Just find a recipe with good integrity.
Bear in mind with smaller volumes though you may have to pay more attention to temperatures. Smaller thermal mass etc.
Just find a recipe with good integrity.
G B
I spent lots of money on booze, birds and fast cars. The rest I squandered
I've stopped drinking, but only when I'm asleep
I ONCE gave up women and alcohol - it was the worst 20 minutes of my life
I spent lots of money on booze, birds and fast cars. The rest I squandered
I've stopped drinking, but only when I'm asleep
I ONCE gave up women and alcohol - it was the worst 20 minutes of my life
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Post #3 made 12 years ago
Here is a NB recipe I took as a test. Here is my problem. If I just change the VIP value to 3.79 L/1 Gallon, it does change the percentages for the grain bill, but not the hops. I believe it is unable to determine what the hops should be because I don't have the AA%'s from the original recipe. What do you do in this case? How do you determine what the hop bill should be for a 5 gallon recipe you convert to 1 gallon?
Danka
[center]BIABacus Pre-Release 1.3 RECIPE REPORT[/center]
[center]BIAB Recipe Designer, Calculator and Scaler.[/center]
[center](Please visit http://www.biabrewer.info" onclick="window.open(this.href);return false; for the latest version.)[/center]
[center]Denny's Wry Smile Rye IPA[/center]
Recipe Overview
Brewer:
Style:
Source Recipe Link:
Original Gravity (OG): 1.078
IBU's (Tinseth):
Bitterness to Gravity Ratio:
Colour:
ABV%: 7.55
Efficiency into Kettle (EIK): 85.7 %
Efficiency into Fermentor (EIF): 77.2 %
Note: This is a Pure BIAB (Full Volume Mash)
Times and Temperatures
Mash:
Boil: 90 min
Ferment:
Volumes & Gravities
Total Water Needed (TWN): 9.92 L = 2.62 G
Volume into Kettle (VIK): 9.47 L = 2.5 G @ 1.036
End of Boil Volume - Ambient (EOBV-A): 4.21 L = 1.11 G @ 1.078
Volume into Fermentor (VIF): 3.79 L = 1 G @ 1.078
Volume into Packaging (VIP): 3.51 L = 0.93 G @ 1.02 assuming apparent attenuation of 75 %
The Grain Bill (Also includes extracts, sugars and adjuncts)
Note: If extracts, sugars or adjuncts are not followed by an exclamation mark, go to http://www.biabrewer.info" onclick="window.open(this.href);return false; (needs link)
70.3% Rahr 2 Row Pale 909 grams = 2 pounds
17.2% Weyerman Rye Malt 222 grams = 0.49 pounds
6.3% Briess Crystal 60 81 grams = 0.18 pounds
3.1% Briess Carapils 40 grams = 0.09 pounds
3.1% Rahr While Wheat Malt 40 grams = 0.09 pounds
The Hop Bill (Based on Tinseth Formula)
(First Wort Hopped)
Mt Hood FWH 1 OZ
Columbus 60 min 1 oz
Mt hood 30 min 1 oz
mt hood 0 min 1 oz
(Dry Hopped)
Columbus 1 oz
Mash Steps
Sacchs Rest for 60 mins at 67.2 C = 152.96 F
Mashout for for 10 mins at 76.7 C = 170.06 F
Chilling & Hop Management Methods
Hopsock Used: Y
Chilling Method: Immersion Chiller
Danka
[center]BIABacus Pre-Release 1.3 RECIPE REPORT[/center]
[center]BIAB Recipe Designer, Calculator and Scaler.[/center]
[center](Please visit http://www.biabrewer.info" onclick="window.open(this.href);return false; for the latest version.)[/center]
[center]Denny's Wry Smile Rye IPA[/center]
Recipe Overview
Brewer:
Style:
Source Recipe Link:
Original Gravity (OG): 1.078
IBU's (Tinseth):
Bitterness to Gravity Ratio:
Colour:
ABV%: 7.55
Efficiency into Kettle (EIK): 85.7 %
Efficiency into Fermentor (EIF): 77.2 %
Note: This is a Pure BIAB (Full Volume Mash)
Times and Temperatures
Mash:
Boil: 90 min
Ferment:
Volumes & Gravities
Total Water Needed (TWN): 9.92 L = 2.62 G
Volume into Kettle (VIK): 9.47 L = 2.5 G @ 1.036
End of Boil Volume - Ambient (EOBV-A): 4.21 L = 1.11 G @ 1.078
Volume into Fermentor (VIF): 3.79 L = 1 G @ 1.078
Volume into Packaging (VIP): 3.51 L = 0.93 G @ 1.02 assuming apparent attenuation of 75 %
The Grain Bill (Also includes extracts, sugars and adjuncts)
Note: If extracts, sugars or adjuncts are not followed by an exclamation mark, go to http://www.biabrewer.info" onclick="window.open(this.href);return false; (needs link)
70.3% Rahr 2 Row Pale 909 grams = 2 pounds
17.2% Weyerman Rye Malt 222 grams = 0.49 pounds
6.3% Briess Crystal 60 81 grams = 0.18 pounds
3.1% Briess Carapils 40 grams = 0.09 pounds
3.1% Rahr While Wheat Malt 40 grams = 0.09 pounds
The Hop Bill (Based on Tinseth Formula)
(First Wort Hopped)
Mt Hood FWH 1 OZ
Columbus 60 min 1 oz
Mt hood 30 min 1 oz
mt hood 0 min 1 oz
(Dry Hopped)
Columbus 1 oz
Mash Steps
Sacchs Rest for 60 mins at 67.2 C = 152.96 F
Mashout for for 10 mins at 76.7 C = 170.06 F
Chilling & Hop Management Methods
Hopsock Used: Y
Chilling Method: Immersion Chiller
Last edited by rdeselle on 11 May 2013, 05:23, edited 2 times in total.
Converting recipes to 1 gallon
Post #4 made 12 years ago
Is converting a recipe to 1 gallon as easy as just dividing by 5?
Post #5 made 12 years ago
Rd, pretty much, yes, Bitterness Calculations vary, but dividing/multipling works well.
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Post #6 made 12 years ago
Short on time atm rdselle but here you go...
Firstly, no you can't just divide the recipe by 5. The main volume figure you need to work off is the end of boil volume once chilled, which is what we call End of Boil Volume at Ambient or EOBV-A. This is not the same as Volume into Fermentor (VIF) or Volume into Packaging (VIP).
Before any recipe can be scaled correctly, you have to determine the EOBV-A. Most recipes on the internet and in most books don't give you this. They just give you VIF which makes determining EOBV-A very difficult or impossible. This in turn makes the recipe difficult or impossible to scale. Probably far less than 5% of recipes* you will come across can actually be scaled easily. This includes those from major programs.
If you search posts by me with the term "Northern Brewer" here you should be able to find the EOBV-A we have worked out for Northern Brewer recipes. Put this into Section D of your BIABacus.
The other problem you have picked up is that their is no AA% given for the hops. This is another common problem of published recipes. The recipe you are trying to copy may have used hops with say 8%AA. You might be copying it a year or two later and the hops might now be 11%AA. In this case the integrity of the recipe is severely compromised.
All you can do in this situation is either ask the original brewer the AA% of the hops they used or go to a site such as this one and choose the average AA% of that hop and then keep your fingers crossed.
If you want more info on the massive problems that exist with homebrew recipes, a search of the word "integrity" on this site will yield a lot of results. A good thread to read on this area is Does this recipe have integrity? Can I copy it?.
PP
* In reality it would be less than 2%.
Firstly, no you can't just divide the recipe by 5. The main volume figure you need to work off is the end of boil volume once chilled, which is what we call End of Boil Volume at Ambient or EOBV-A. This is not the same as Volume into Fermentor (VIF) or Volume into Packaging (VIP).
Before any recipe can be scaled correctly, you have to determine the EOBV-A. Most recipes on the internet and in most books don't give you this. They just give you VIF which makes determining EOBV-A very difficult or impossible. This in turn makes the recipe difficult or impossible to scale. Probably far less than 5% of recipes* you will come across can actually be scaled easily. This includes those from major programs.
If you search posts by me with the term "Northern Brewer" here you should be able to find the EOBV-A we have worked out for Northern Brewer recipes. Put this into Section D of your BIABacus.
The other problem you have picked up is that their is no AA% given for the hops. This is another common problem of published recipes. The recipe you are trying to copy may have used hops with say 8%AA. You might be copying it a year or two later and the hops might now be 11%AA. In this case the integrity of the recipe is severely compromised.
All you can do in this situation is either ask the original brewer the AA% of the hops they used or go to a site such as this one and choose the average AA% of that hop and then keep your fingers crossed.
If you want more info on the massive problems that exist with homebrew recipes, a search of the word "integrity" on this site will yield a lot of results. A good thread to read on this area is Does this recipe have integrity? Can I copy it?.
PP
* In reality it would be less than 2%.
Last edited by PistolPatch on 11 May 2013, 18:42, edited 2 times in total.
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Post #7 made 12 years ago
Hey PP thanks for the reply.
Yeah I have been using 20.82 for EOBV-A which is a number I got from another one of your posts. I just found another post where you used 20.83. I think I'm close.
I will play around with the AA%'s to see what I can come up with.
One other thing that seems to be broken, at least in my BIABacus (version 1.3) is that the Hops Bill doesn't get transfered to the "Recipe Report" tab so when I cut and paste the recipe here I have to manually type in the hops. Anyone else having this problem?
Robert
Yeah I have been using 20.82 for EOBV-A which is a number I got from another one of your posts. I just found another post where you used 20.83. I think I'm close.
I will play around with the AA%'s to see what I can come up with.
One other thing that seems to be broken, at least in my BIABacus (version 1.3) is that the Hops Bill doesn't get transfered to the "Recipe Report" tab so when I cut and paste the recipe here I have to manually type in the hops. Anyone else having this problem?
Robert
Post #8 made 12 years ago
rd, I just noticed joshua's post above. Not sure if it's clear or not but you can use simple dividing/multiplying as long a you work of the EOBV-A's of the recipes.
I'd say the reason why your hops aren't appearing in the report is that they have no AA% value. Once you have that, all should be okay.
I'd say the reason why your hops aren't appearing in the report is that they have no AA% value. Once you have that, all should be okay.
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