Converting All grain to partial mash

I'm looking for a little help with converting Lil Sparky's Oatmeal Stout receipt to a partial mash. This will be my first attempt at a partial mash so any extra advice is welcome. Here is the receipt I will be using:

Recipe Type: All Grain
Yeast: Nottingham
Batch Size (Gallons): 5.5
Original Gravity: 1.055
Final Gravity: 1.0
IBU: 30
Boiling Time (Minutes): 60
Color: 1.014
Primary Fermentation (# of Days & Temp): 14 @ 68'

This is a simple, but great oatmeal stout recipe. One of my favorites!

Beer Profile
Estimated Original Gravity: 1.057 SG
Estimated Final Gravity: 1.014 SG
Estimated Color: 27.4 SRM (22.0-45.0 SRM) [Color]
Bitterness: 30.0 IBU (25.0-45.0 IBU)
Estimated Alcohol by Volume: 5.7 %
Actual Calories: 215 cal/pint

Ingredients
Amount Item Type % or IBU
9.00 lb Brewers Malt 2-Row (Briess) (1.8 SRM) Grain 72.0 %
1.50 lb Oats, Flaked (1.0 SRM) Grain 12.0 %
1.00 lb Caramel/Crystal Malt - 40L (40.0 SRM) Grain 8.0 %
0.50 lb Chocolate Malt (350.0 SRM) Grain 4.0 %
0.50 lb Roasted Barley (300.0 SRM) Grain 4.0 %
1.50 oz Goldings, East Kent [6.20%] (60 min) Hops 30.0 IBU
1 Pkgs Nottingham (Danstar #-) Yeast-Ale

Mash Profile
Name: Single Infusion, Medium Body
Mash Grain Weight: 12.50 lb
Grain Temperature: 72.0 F
Sparge Temperature: 168.0 F
Sparge Water: 4.74 gal

Name Description Step Temp Step Time
Mash In Add 15.00 qt of water at 165.3 F 153.0 F 30 min


Right now I'm just wondering what ingredients I should get so that I can go ahead and order them. I'm going to build a partial mash mash tun from the instructions here.

thanks for any and all help.


peace
-gw

Remove 7lbs of two row and replace with either 5lbs LME or 4lbs DME.

Mash the rest.

So my ingredients should look like:

Ingredients
Amount Item Type % or IBU
2.00 lb Brewers Malt 2-Row (Briess) (1.8 SRM) Grain 72.0 %
1.50 lb Oats, Flaked (1.0 SRM) Grain 12.0 %
1.00 lb Caramel/Crystal Malt - 40L (40.0 SRM) Grain 8.0 %
0.50 lb Chocolate Malt (350.0 SRM) Grain 4.0 %
0.50 lb Roasted Barley (300.0 SRM) Grain 4.0 %
4.00 lb DME or 5.00 lb LME
1.50 oz Goldings, East Kent [6.20%] (60 min) Hops 30.0 IBU
1 Pkgs Nottingham (Danstar #-) Yeast-Ale


then after the partial mash I'll have the liquid from my mash in my stock pot and then add in the extract and boil for 30 min?


peace
-gw

your partial mash should be 1.25 quarts per pound of grain.
steep that at 155*F for 30-60 minutes, then strain the water into the brew pot.
sparge with 170*F water
fill your brew pot to whatever you are boiling at.

THEN add your extract and start your boil

hmmm, only 1 hop addition.

if you're not boiling a full 5 - 6 gallons of wort (meaning you have to top off to 5 gallons in the fermenter) then I'd suggest you boil just the mashed wort for 30-40 minutes, and add the malt extract at 20 minutes left in the boil, so you get full hop utilization.

i've got a 6.5 gallon fermentation bucket, and I don't think this calls for secondary, just 14 days in primary (if I'm correct in reading the instructions) if this was the case, should I boil just the mashed wort, or go ahead and get it right up to 5 gallons? I would think I would just boil the mashed wort, so that there will be less liquid to cool, but I'm still pretty new to this. ideas? Thanks for the help!!


peace
-gw

yes, you can do that, but you're going to have less than 2 gallons of water with your wort. i'd want my boil to be a little higher than that, so just add a little extra water to your mashed wort, to maybe 2.5 gallons, THEN boil, THEN top off to 5 gallons.

Quick question. When I'm replacing the 7lbs of 2-row with my malt extract (either liquid or dry) what kind of extract should I replace it with. just any 2-row DME? Right now I'm looking at ordering my stuff from northerbrewer.com and I'm looking specificaly at this page here for my malt extract:

http://www.northernbrewer.com/malt-extract.html

and from there looking under Briess DME, but I'm still not sure which one to get. Thanks for the help!

EDIT: also, does anyone have a recommendation of another place to order all these ingredients from? Thanks!

peace
-gw

you could go dark, or you could get munton's light. you'll get good color from the grains being mashed.

austinhomebrew.com midwestsupplies.com and morebeer.com each have good reputations among online sites.