Bringing this back from the dead. After reading most of these posts and seeing the resulting beers, it seemed like color was always a little on the light side. Most all of the clone recipes use 20L or 40L I know Georgetown doesn't say which Crystal malt they use, and instead of asking which they used, I instead made a guess and asked if I was right. I was right! I also asked about the Magnum/Summit change. Here's the response I got:
You are correct - we do use C-60 in Manny's.
As far as Magnum goes, we did use it originally. Then there was a time when Magnum was really hard to get, so we switched to Columbus. Columbus wasn't really working though, so we switched again to Summit. When Magnum became more readily available, the brewers decided they preferred Summit to Magnum and it has been Summit ever since.
Good luck with your brew!
I brewed my version of this last month. I don't have access to Summit, so I used Magnum. I believe I came pretty dang close, now I just need to grab a growler of Manny's to do a side by side comparison. I'll post again with some pics once I do that, hopefully next week. Here's the recipe I used. Note: IBUs are off by a little bit, you can adjust hop schedule as necessary to get your recipe to the 38IBUs that Manny's is at.
Boil Size: 6.97 gal
Post Boil Volume: 5.72 gal
Batch Size (fermenter): 5.50 gal
Bottling Volume: 5.00 gal
Estimated OG: 1.050 SG
Estimated Color: 9.3 SRM
Estimated IBU: 43.7 IBUs
Brewhouse Efficiency: 71.00 %
Est Mash Efficiency: 71.0 %
Boil Time: 60 Minutes
Amt Name Type # %/IBU
9 lbs Pale Malt (2 Row) US (2.0 SRM) Grain 1 83.7 %
1 lbs Caramel/Crystal Malt - 60L (60.0 SRM) Grain 2 9.3 %
12.0 oz Cara-Pils/Dextrine (2.0 SRM) Grain 3 7.0 %
1.00 oz Magnum [11.20 %] - Boil 60.0 min Hop 4 38.6 IBUs
0.50 oz Cascade [5.50 %] - Boil 15.0 min Hop 5 4.7 IBUs
0.50 oz Cascade [5.50 %] - Boil 1.0 min Hop 6 0.4 IBUs
1.0 pkg Thames Valley Ale (Wyeast Labs #1275) [1 Yeast 7 -
1.00 oz Cascade [5.50 %] - Dry Hop 7.0 Days Hop 8 0.0 IBUs
Mash Schedule: Single Infusion, Medium Body, No Mash Out
Total Grain Weight: 10 lbs 12.0 oz
Name Description Step Temperat Step Time
Mash In Add 12.00 qt of water at 163.1 F 150.0 F 60 min