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Old 04-16-2011, 11:58 PM   #1
BeerNut24
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Default Brewtarget-1.2.3. not matching recipe

I'm planning to brew a batch of Milk oatmeal stout (using a recipe from here) and put all the ingredient data into Brewtarget-1.2.3. so I can get experience using the software. The recipe is below with the readings also

Light Dry Malt Extract – 4.5 lbs
Black Patent – 8 oz
Chocolate Malt – 12 oz
CARAPILS – 8 oz
Lactose – 1 lb
Oats, Flaked – 1 lb
Fuggle Pellet Hops – 1 oz (60 min)
Fuggle Pellet Hops - 1 oz (5 min)
Windsor Yeast
Irish Moss - 1 tsp

Original Gravity: 1.052
Final Gravity: 1.024
IBU: ~17
Color: ~35 SRM


Brewtarget - 1.2.3. readings are:

Original Gravity: 1.054
Final Gravity: 1.013
IBU: 10.4 (This is the greatest difference)
Color: 37.5

Brewtarget lists it as "cloying"

Are the brewtarget readings points of concern for me? I'm just trying to understand the whole process. Thanks for the help.

Don

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Old 04-17-2011, 03:08 AM   #2
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Here is what I got when I entered it into Brewtarget. This is from "Tools-Recipe to Clipboard as Text" menu item. I got slightly different numbers, but I have made some adjustments to the equipment. I get "Extra Malty".

Your ingredients list probably just needs some tweaking. As you brew batches with the software and learn where the likely differences lie you will want to tweak your presets.

MilkOatmealStout
================================================== ==============================
Batch Size: 5.001 gal
Boil Size: 6.200 gal
Boil Time: 0.000 s
Efficiency: 70%%
OG: 1.054
FG: 1.016
ABV: 4.9%%
Bitterness: 18.6 IBUs (Tinseth)
Color: 37 SRM (Morey)

Fermentables
================================================== ==============================
Name Type Amount Mashed Late Yield Color
Light Dry Extract Dry Extract 4.500 lb No No 95%% 8 L
Black (Patent) Malt Grain 8.000 oz No No 55%% 500 L
Chocolate Malt (US) Grain 12.000 oz No No 60%% 350 L
Cara-Pils/Dextrine Grain 8.000 oz No No 72%% 2 L
Milk Sugar (Lactose) Sugar 1.000 lb No No 76%% 0 L
Oats, Flaked Grain 1.000 lb Yes No 80%% 1 L
Total grain: 8.250 lb

Hops
================================================== ==============================
Name Alpha Amount Use Time Form IBU
Fuggles 4.5%% 1.000 oz Boil 1.000 hr Pellet 15.5
Fuggles 4.5%% 1.000 oz Boil 5.000 min Pellet 3.1

Yeast
================================================== ==============================
Name Type Form Amount Stage
Danstar - Windsor Ale Ale Dry 0.388 oz Primary

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Old 04-17-2011, 02:53 PM   #3
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I think you have something wrong with the hops. Check the AA% is between 4.5% and 5%. Check you added 1 oz at 60 minutes and 1 oz at 5 min. If you have those values, you should get approximately 20 IBU's.
I entered it in BeerSmith, BreTarget, and ProMash. They all gave approximately 20 IBU's, and switching between Tinseth and Rager didn't make a noticeable difference.

-a.

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