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I need some help converting an all grain recipe to extract

Hello All,
A friend brewed this beer and I enjoyed it. I wanted to convert the recipe to extract since I do not have the equipment for all grain. Also this was for a 10 gallon batch and I want to make a 5 gallon extract batch. My brew kettle is an 8 gallon megapot.Thank You in advanced for your help.

This is the Original all grain 10 gallon Recipe:

15 lb 7.6 oz Pale Malt (2 Row) US (2.0 SRM)
1 lb 11.5 oz Oats, Flaked (1.0 SRM)
1 lb 7.1 oz Caramel/Crystal Malt - 60L (60.0 SRM)
1 lb 7.1 oz Chocolate Malt (350.0 SRM)
15.40 oz Roasted Barley (300.0 SRM)
13.70 oz Cara-Pils/Dextrine (2.0 SRM)
1.58 oz Chinook [13.00 %] - Boil 60.0 min
1.58 oz Glacier [5.60 %] - Boil 5.0 min
8 oz Cocoa Powder (Boil 0.0 mins)
2 Pkgs Safale American (DCL/Fermentis #US-05) [50.28 ml]
12 oz CocoaNibs (Secondary 7.0 days)

This is the extract 5 gallon conversion that I worked out. Please let me know if this looks right. I am still new to this whole thing. Do I just use all the grains in a mesh bag as flavoring grains?

7 lb 15.4 oz Pale Liquid Extract (8.0 SRM)
1 lb 9.6 oz Carafoam (2.0 SRM)
9.1 oz Caramel/Crystal Malt - 60L (60.0 SRM)
9.1 oz Chocolate Malt (350.0 SRM)
6.1 oz Roasted Barley (300.0 SRM)
11.50 oz Cara-Pils/Dextrine (2.0 SRM)
0.82 oz Chinook [13.00 %] - Boil 60.0 min
0.82 oz Glacier [5.60 %] - Boil 5.0 min
4 oz Cocoa Powder (Boil 0.0 mins)
1 Pkgs Safale American (DCL/Fermentis #US-05) [50.28 ml]
6 oz CocoaNibs (Secondary 7.0 days)

that recipe can’t be done in an extract form due to the oats that have to be mashed. You would atleast have to do a mini/partial mash.

Secondly. carafoam is basically carapils. You wouldn’t use both.

And you should use the lightest extract, and you shouldn’t change the specialty grains. you changed all your specialty grains. Don’t do that. you are making a completely different beer by doing so.

It’s a bit hit or miss figuring how much extract you would need to replace the base malt and oats without knowing your friend’s efficiency on his system. Assuming he’s around 75% efficient, 6.5# of light LME would get you in the ballpark for a 5 gallon batch.

Like posted above, all the specialty malts should remain the same percentages, hops too, just divide them by half to scale it down to 5 gallons.

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