First Recipe Attempt - Columbia Common

[TreetopVT]

Could I get some feedback on a recipe I am trying to formulate? I am inspired by Widmer's Columbia Common and this is my first hack at a recipe for something similar.
Here is the website for the inspiration:
http://widmerbrothers.com/beer/#columbia-common

And here is my take on it:

Boil Time: 60 min Equipment:
Batch Size: 5.5 Gallons


Ingredients
Amt Name Type # %/IBU
7 lbs Pale Malt (2 Row) US (2.0 SRM) Grain 1 65.7 %
2 lbs 8.0 oz Munich 20L (Briess) (20.0 SRM) Grain 2 23.5 %
1 lbs Caramel/Crystal Malt - 40L (40.0 SRM) Grain 3 9.4 %
2.4 oz Chocolate Malt (350.0 SRM) Grain 4 1.4 %
0.25 oz Millenium [14.25 %] - Boil 60.0 min Hop 5 11.4 IBUs
0.25 oz Warrior [15.00 %] - Boil 60.0 min Hop 6 12.0 IBUs
1.00 oz Columbia [5.50 %] - Boil 15.0 min Hop 7 8.7 IBUs
1.00 oz Willamette [5.50 %] - Boil 0.0 min Hop 8 0.0 IBUs
1.0 pkg California Ale (White Labs #WLP001) [35.49 ml] Yeast 9 -
1.0 pkg San Francisco Lager (White Labs #WLP810) [35.49 ml] Yeast 10 -

Beer Profile

Est Original Gravity: 1.049 SG Measured Original Gravity: 1.046 SG
Est Final Gravity: 1.009 SG Measured Final Gravity: 1.010 SG
Estimated Alcohol by Vol: 5.3 % Actual Alcohol by Vol: 4.7 %
Bitterness: 32.1 IBUs Calories: 151.6 kcal/12oz
Est Color: 13.6 SRM

I am looking for critiques, changes, or don't brew that, you'll have swill! Recipe formulation is something I want to get into and any tips would be great.

Thank you!

 

[progmac]

wow, that website has a lot of detail on the brew.
i think this is a good starting point. i don't really get the chocolate malt. i would use like "a tablespoon" - i think even at 2.4 oz it is going to be dark compared to the beer in the link.

they mention a hefeweizen yeast, so you might want to do that instead of the wlp001

also, you could simplify by just using one bittering hop.

 

[jdauria]

Widmer's Columbia Common is a fantastic beer. My local bar still has on tap, but I know it will run out soon so I just tried putting together a recipe to match theirs also. Here's my take which matches their OG and is close to their IBU's and uses two yeasts as their site mentions:

Recipe Specifications
--------------------------
Boil Size: 7.00 gal
Post Boil Volume: 6.00 gal
Batch Size (fermenter): 5.00 gal
Bottling Volume: 4.75 gal
Estimated OG: 1.047 SG
Estimated Color: 12.0 SRM
Estimated IBU: 33.4 IBUs
Brewhouse Efficiency: 70.00 %
Est Mash Efficiency: 79.9 %
Boil Time: 60 Minutes

Ingredients:
------------
Amt Name Type # %/IBU
7 lbs 8.0 oz Pale Ale Malt 2-Row (Briess) (3.5 SRM) Grain 1 81.1 %
1 lbs Munich 20L (Briess) (20.0 SRM) Grain 2 10.8 %
8.0 oz Caramel Malt - 40L (Briess) (40.0 SRM) Grain 3 5.4 %
4.0 oz Pale Chocolate Malt (215.0 SRM) Grain 4 2.7 %
1.00 oz Columbia [5.50 %] - Boil 60.0 min Hop 5 20.3 IBUs
0.25 oz Warrior [15.00 %] - Boil 30.0 min Hop 6 10.6 IBUs
0.25 oz Columbia [5.50 %] - Boil 15.0 min Hop 7 2.5 IBUs
0.50 oz Willamette [5.50 %] - Boil 0.0 min Hop 8 0.0 IBUs
0.7 pkg San Francisco Lager (White Labs #WLP810) Yeast 9 -
0.3 pkg American Hefeweizen Ale (White Labs #WLP Yeast 10 -


Mash Schedule: Single Infusion, Medium Body, No Mash Out
Total Grain Weight: 9 lbs 4.0 oz
----------------------------
Name Description Step Temperat Step Time
Mash In Add 3.50 gal of water at 166.7 F 153.0 F 60 min

Sparge: Fly sparge with 4.86 gal water at 168.0 F