Specific gravity in brewing is the ratio of the density of the wort to that of water.

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Refractometer - what exactly can it measure?

I am using a refractometer to determine gravities. I am aware of course that values measured need to be corrected depending on OG of the fermenting batch. What I don't know is, what kind of sugars am ...
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Determining the potential gravity of non-grain additions

How do you determine the potential gravity of certain ingredients? I'm sure there are charts and the like online, but, let's say you want to use a new fruit in a beer.. What are the steps to ...
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Calculating sugar in fresh fruit

Recently I made a belgian strong ale. In the secondary I added 7 pounds of fresh cherries that were pitted, frozen, thawed, and blended up. Is there a good way to at least estimate the additional ...
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Didn't hit gravity--how to calculate how much malt extract to add to the fermenter?

Lets say you were aiming for 1.047 but only hit 1.032. In a 5 gallon batch, how much malt extract would you need to add to the fermenter to bring it up to the desired gravity?
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1answer
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What gravity is suitable for not using priming sugar?

Assuming full attenuation, is there a way to figure out what gravity reading would be suitable to not use priming sugar, and just allow the excess sugar to create the carbonation? A sub-question would ...
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3answers
766 views

Measuring Gravity

What is the usual procedure for measuring gravity? Is it typical to just take an original and final gravity measurement or should measurements be taken throughout? I've heard people talk about ...
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Gravity Measurement Tools

What tools for measuring specific gravity are available to the homebrewer? EG: refractometer, hydrometer. What scale do they measure? EG: Brix, plato
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1answer
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[WIKI] How Do You Calculate Original Gravity?

This is a community wiki post. Anybody with more than 100 reputation can edit it. You may also post your own answer. I get no reputation if you vote the question up or down, however, please vote up if ...
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How do I predict final gravity?

I've been taking the original gravity and multiplying the apparent attenuation of the yeast. For instance: 1.040 OG x 75% apparent attenuation = 1.010 expected FG But I never seem to get there. My ...
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Fermentation Issues???

Fermentation Help I have need some thoughts on what I should do with this batch of beer. I am brewing a clone kit which is called Belgium Wit. The directions were a little off based on the equipment ...
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What causes Original Gravity to be lower than it should be?

I am an extract brewer and every brew I have done the OG was lower than the intended OG, (my OG is always lower than the recipe's OG). For example I brewed the stout recipe below from beertools.com ...