Calculating OG

[kgaugler]

Is there a formula for calculating expected OG in a recipe. I brewed a Schwartzbier recipe I have that contains the following:

5# Light DME
1# Caramalt
1/2# Debittered black
1/2# Roasted Barley

What would the expected OG be for this recipe?

[noby]

try plugging the details into here (http://hbd.org/cgi-bin/recipator/recipator)
I find it handy for formulating recipes.

noby

[kgaugler]

Thanks Noby, very helpful.

[MARK123]

Try this....
Calculating Specific Gravity

1. Rule of thumb:

INGREDIENT SPECIFIC GRAVITY FOR ONE GALLON

1.0 LBS OF GRAIN 1.025 ( USE 25 )
1.0 LBS OF EXTRACT 1.036 ( USE 36 )
1.0 LBS OF DRY MALT EXTRACT 1.040 ( USE 40 )
1.0 LBS OF SUGAR 1.040 ( USE 40 )
2. Calculating the oriqinal specific gravity:

A five gallon batch of trappist ale containing two cans of extract, one pound of grain, one pound of dried malt extract, and one pound of brown sugar would have the following original specific gravity:
Extract: (2 cans) x (4 lbs/can) x (36 points/lbs) = 288 points
Grain: (1 lbs) x (25 points/lbs) = 25 points
Dry Malt Extract: (1 lbs) x (40 points/lbs) = 40 points
Sugar: (1 lbs) x (40-points/lbs) = 40 points

Total points = 393 points


Total points 393 points
Original gravity = ------------------- = ------------ = 78.9 points
Number of Gallons 5 gallons

Therefore, the trappist ale had a starting gravity of 78.9 points or 1.079, a tripple !!!

[Fast_Eddy]

Originally posted by MARK123
Try this....
Calculating Specific Gravity

1. Rule of thumb:

INGREDIENT SPECIFIC GRAVITY FOR ONE GALLON

1.0 LBS OF GRAIN 1.025 ( USE 25 )
1.0 LBS OF EXTRACT 1.036 ( USE 36 )
1.0 LBS OF DRY MALT EXTRACT 1.040 ( USE 40 )
1.0 LBS OF SUGAR 1.040 ( USE 40 )
2. Calculating the oriqinal specific gravity:

A five gallon batch of trappist ale containing two cans of extract, one pound of grain, one pound of dried malt extract, and one pound of brown sugar would have the following original specific gravity:
Extract: (2 cans) x (4 lbs/can) x (36 points/lbs) = 288 points
Grain: (1 lbs) x (25 points/lbs) = 25 points
Dry Malt Extract: (1 lbs) x (40 points/lbs) = 40 points
Sugar: (1 lbs) x (40-points/lbs) = 40 points

Total points = 393 points


Total points 393 points
Original gravity = ------------------- = ------------ = 78.9 points
Number of Gallons 5 gallons

Therefore, the trappist ale had a starting gravity of 78.9 points or 1.079, a tripple !!!

For anyone who doesn't know this:

1) The number shown as "USE X" is the ppg for the type and in the case of grain it's an adjusted value for that takes extract efficiency into account

2) You divide the 393 Gravity points by the 5 gallons to get the OG.

[MARK123]

Here's a nice hops calculator also...
http://www.hotv.org/tools/hopSchedule.html