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Brix Scale Calculations

Tuesday, January 22, 2008

In beer making you usually hear of Original Gravities being 1.0 something and some winemakers will do the same. More common in winemaking is the Brix Scale. So, what is the Brix scale and why should I know it. Basically, it measures the sugar content of your juice and knowing that you can get an idea of how much alcohol your wine will produce. Here are a couple of definitions:
Brix scale from Answers.com

A system of measurement, given in degrees, of the amount of sugar present in grape juice. Similar systems are used in different countries, eg. the Balling, Baumé and Oechsle scales, all providing sugar content measurements that can be used to approximate the final alcohol content of wine being produced. See also must weight.

Another definition from Onlineconversion.com

Balling: The name of a density scale for measuring sugar content in water base solutions. Since grape juice is primarily sugar and water, the balling scale was used for a quick and easy "sugar analysis" of juice. The Balling scale contained a slight inaccuracy however, and it was corrected by Dr Brix. Today the Brix scale is in actual use, but the terms Balling and Brix often are used interchangeably.

The Balling (Brix) scale is simplicity itself: Each degree is equivalent to 1 percent of sugar in the juice. For example, grape juice which measures 15.5 degrees on the Balling or Brix scale contains about 15.5% sugar.

Now that you know the Brix of your juice, you can easily fiqure out how much alcohol your juice will make by using this formula:

Brix count x .575

So if your brix count is 23, take 23 x .575, which equals 13.23. Your wine should be slightly over 13% alcohol content whenever it is done fermenting.

Related articles:

Using Your Hydrometer - Part 1

Using Your Hydrometer - Part 2



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1 comments:

Travis said...

I just got a refractometer (gift certificate for Amazon) and I have been trying to traverse the world of Brix. Good thing for me, my Beer Smith has a little calculator that does everything for me (no need to think anymore, the computer will do that for me).

I would say one thing that has been something I didn't expect is that you have to factor in the state of the brew. If it's unfremented, fermenting, or completed, there are slight variations that come into play. Again, I am a fan of the calculators for practical purposes.

Cheers!

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