First AG -> Partial Conversion

[Rafae]

Hey guys, I am trying to convert an AG to a partial mash of a Green Flash IPA clone that i found. This is my first time doing this so i would like to verify that this looks correct.

I plan to follow the original recipe and hop schedule after conversion. Here is the original recipe:

12 LBS American 2-Row Malt
2 LBS Maris Otter Malt
1 LB Carastan Malt 30L (English Crystal) Guaranteed that GF uses it!
.25 Victory or Biscuit Malt
.5 Carapils Malt
.5 Wheat Malt Malt

1 oz Warrior (15.5AA) @ 90m
.5 oz Simcoe (11.9AA) @ 45m
.5 oz Centennial (9.1AA) @ 30m
1 oz Cascade (6.3AA) @ 0m (Flameout) Steep for 5 minutes before rapid chilling
.5 oz Simcoe (11.9 AA) @ 0m (Flameout) Steep for 5 minutes before rapid chilling
1 oz Columbus (12.2AA) Dry Hop in Secondary for 48 hours at 65F
1 oz Centennial (9.1AA) Dry Hop in Secondary for 48 hours at 65F
.5 oz Simcoe (11.9AA) Dry Hop in Secondary for 48 hours at 65F

I believe the only grain i will convert to extract is the 12lbs of American 2-Row Malt. 0.75lbs (LME) of 12lbs (grain) gives me 9lbs. The extract comes in 3.3lb cans so i will end up with 6.6lbs of domestic liquid extract and (2.4lbs x .89lbs) 2.14 lbs of light DME.

How does this look? Should i convert any of the other grains?

Thanks!

 

[dcp27]

how much grain do you feel comfortable mashing? you could just do the 6.6lb LME and keep 3.2lbs of 2-row. or 6lbs of DME and keep 2lbs 2-row

also, your DME conversion is wrong. 1lb LME = 0.8lb DME, so it'd be 1.92lbs of DME

 

[dcp27]

.

 

[Rafae]

Ah thanks for that correction. I thought 1lb of LME = 0.89lbs of DME.

I haven't ever mashed more than 4.5lbs of grain. I mash in a 5 gallon pot and steep/sparge in an additional 5 gallon pot. I might be able to do ~6lbs of grain but I don't think i have room for any more than that. If it really comes down to it, i can order 9lbs of LME from somewhere like Austin Homebrew.

Also, can someone link me to some information on calculating the estimated SG/FG?

 

[Yooper]

Ah thanks for that correction. I thought 1lb of LME = 0.89lbs of DME.

I haven't ever mashed more than 4.5lbs of grain. I mash in a 5 gallon pot and steep/sparge in an additional 5 gallon pot. I might be able to do ~6lbs of grain but I don't think i have room for any more than that. If it really comes down to it, i can order 9lbs of LME from somewhere like Austin Homebrew.

Also, can someone link me to some information on calculating the estimated SG/FG?

Generally, for conversions, you want to do something like this:

1 pound grain = .75 pounds LME = .6 pounds DME.

To calculate the OG, I use Beersmith. For the FG, you sort of have to figure it out yourself, but 75% is a good figure to use as an attenuation figure so you can guestimate that your FG will be 25% of your OG.

 

[dcp27]

Ah thanks for that correction. I thought 1lb of LME = 0.89lbs of DME.

I haven't ever mashed more than 4.5lbs of grain. I mash in a 5 gallon pot and steep/sparge in an additional 5 gallon pot. I might be able to do ~6lbs of grain but I don't think i have room for any more than that. If it really comes down to it, i can order 9lbs of LME from somewhere like Austin Homebrew.

Also, can someone link me to some information on calculating the estimated SG/FG?

beersmith is great, but you can also get away with such free calculators as this one: http://beercalculus.hopville.com/recipe

6lbs of grain is no problem in a 5gal pot, i regularly BIAB at least that much, and have gone as high as 12lbs (was very messy)

 

[Rafae]

Thanks for the responses. I will have to check out beersmith.