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Home Brew Forums > Wine, Mead, Cider, Sake & Soda > Mead Forum > Expected OF and FG - Calculations
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Old 11-21-2012, 08:33 PM   #1
Tiroux
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Join Date: Sep 2012
Location: Thurso, Québec
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Default Expected OF and FG - Calculations

Hi!

I've been told this formula...
25 x liters of mead wanted x ABV % points = grams of honey need

example... for 10 liters of 10% mead...
25 x 10 x 10 = 2 500g
That means 5.5 lbs of honey for a 2.64 gallons batch.

But if I do the calculations in beersmith, or with other calculators... I have really different results.

Here's my recipe.

4Kg Buckwheat honey (80% sugar content) (8.8lbs)
Fruits that will give a total of 1Kg of ferment. sugars (2.2lbs)
That is for a 17L batch, so a 4.5 gallons
lalvin k1-v1116 yeast

If i use the formula with the honey, and calculate the contribution of fruits... It results with 13.0% ABV

With beersmith (with honey yield at 80%), i got 15.5% ABV, but a FG of 0.979!

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