Converting an AG to a PM.

How can I convert this to a partial mash using 4 pounds of 2-row?
How much extract do I need to use?

This is from the Edmund Fitzgerald porter on this web site.

9.00 lb Pale Malt (2 Row) US (2.0 SRM) Grain 83.7 %
0.75 lb Caramel/Crystal Malt - 40L (45.0 SRM) Grain 7.0 %
0.50 lb Chocolate Malt (350.0 SRM) Grain 4.7 %
0.50 lb Roasted Barley (300.0 SRM) Grain 4.7 %
1.25 oz Northern Brewer [8.50%] (60 min) Hops 36.4 IBU
1.25 oz Fuggles [4.50%] (30 min) Hops 14.8 IBU
1.00 oz Cascade [5.50%] (0 min) Hops -
1 Pkgs London ESB Ale (Wyeast Labs #1968) [Starter 2000 ml] Yeast-Ale

Thanks,
Mark

 

Assuming 75% efficiency in your mash, you would need 4 lb. of malt extract.

I would recommend getting some brewing software, which will greatly help converting recipes, and even creating your own.

-Steve

 

5 lbs of grain is 3 lbs of DME.

Email me and I'll send you one of my chart pages (in Excel) @

[email protected]

 

Thanks for the info. Homebrewer 99 I don't have excel, do I need it to view it or can if be viewed through another program?

 

It shocks me when I find out there are people using computers that don't have Excel. In the working world I just kind of assume that everyone has a copy, because usually everyone does.


You could even use a website that allows you to build recipes like BrewBuilder 2.0 to do this if you don't want to get any software for your PC. Really all you need to do is write down the target OG of the existing recipe, subtract the 5 pounds of 2-row (leaving you with four) and then add back enough extract to give you the same OG.

 

Not that I am aware of, but probably.

I thought 99% of everyone used MS Office...

I'll see about changing the format or re-typing it tonight when I get home...

 

Funny how it all comes down to some basic math, huh?

 

Regarding the excel thing, you could upload it to google documents and then share it.

 

Two options:
Google "excel viewer" and you should be able to find a download from Microsoft.
Or try OpenOffice (OpenOffice.org - The Free and Open Productivity Suite). It is an open source office suite of applications. I forget what the name of the program is, but one of them will open xls files. I haven't tried this with Office 2007 files.

Good luck!

 

One thing I'd highly recommend when converting an AG recipe to PM is to modify the efficiency first, before you start converting base grains to extract! It depends on your PM method, but I've used DeathBrewer's method for a bunch of beers, and while now I can get up to 70% with it, for a while I got much lower than that. No matter what I did my OG always turned out lower than what the recipe projected. Then I figured out what was going on and converted all the AG recipes I was using to 65% efficiency. To do this, basically take the quantity of every grain and multiply it by (efficiency in recipe / 65%). So if the recipe is at 75% efficiency, multiply every grain amount by 75/65. Doing that will adjust the recipe to your efficiency. Then use those amounts to figure out how much extract you'll need.

Seriously, once I started adjusting AG recipes to my efficiency in this way, I rarely missed an OG. If you're converting the whole thing to extract, it doesn't matter so much, since with extract you don't have to worry about efficiency, but if you'll be trying to extract sugar from grains at all (I typically mash 7-8 lbs of grain in my PM recipes), you want the numbers to be right.

 

I'll check it out later tonight. Thanks.

 

Working world, whats that? I'm on my home PC and all I have is Microsoft Works, If you can save it in Rich Text Format (.rtf) format I should be able to view it.

 

OK, lets see how this will work:

LBS OF

GRAIN LIQUID DME
1.00 .750 .60
1.5 03 0.90
2.00 1.50 1.20
2.50 1.88 1.50
3.00 .251.80
3.50 .632.10
4.00 .002.40
4.50 3.382.70
5.00 3.753.00
5.50 4.13 3.30
6.00 4.50 3.60
6.50 4.88 3.90
7.00 5.25 4.20
7.50 5.63 4.50
8.00 6.00 4.80
8.50 6.38 5.10
.006.755.409.507.135.7010.00
7.50
6.00

DECIMAL OUNCES
0.05 0.80
0.10 1.60
0.15 2.40
0.20 3.20
0.25 4.00
0.30 4.80
0.35 5.60
0.40 6.40
0.45 7.20
0.50 8.00
0.55 8.80
0.60 9.60
6.50 10.40
0.70 11.20
0.75 12.00
0.80 12.80
0.85 13.60
0.90 14.40
0.95 15.20
1.00 16.00

 

Cool, That works. Thanks again.