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

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adding 1 g to 5 g recipe - keep OG the same

So i've got a 5 gallon partial mash kit(OG 1.065), and I am looking to add around a gallon to increase my yield for the session. What formula could I use to know how much extra dme to use to keep ...
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Degrees Plato vs Specific Gravity

What is the difference between these measurements and is one better than the other for any particular use? Which measurement scale do you use, why?
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Is my SG too low? [closed]

I have an SG of 1,040, and the target OG is about 1.065. I was wondering if this is too low? Should I add more water?
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Why does gravity increase between pre-boil and pitching?

My handy-dandy "Beer Craft" book has a handful of recipes with useful information, including expected targeted pre-boil gravity, original gravity, and final gravity. Their pale ale recipe, for ...
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516 views

How can this BeerSmith 2 gravity calculation be correct?

My beersmith brew sheet printout gives me some gravity numbers that I can't make head or tail of: How can the pre-boil gravity (when I haven't added 57% of the malt yet) be 1,084, while the ...
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Seeking formula for adding sugar disolved in water to produce specific gravity

I have seen several tables, notably, http://winemaking.jackkeller.net/hydrom.asp http://www.beer-wine.com/learning/how-adjust-specific-gravity http://www.brsquared.org/wine/CalcInfo/HydSugAl.htm ...
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first stage beer seems slow (stopped?)

My first brew! I forgot to add yeast and put it in a day later. #embarrassing I took a SG reading after 5 days: 1.018 I took another reading today, 7 days in, and it's only dropped to 1.016. The ...
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350 views

Final Gravity A Little Off

I am at day 12 of my first brew from a True Brew Belgian Ale. I checked the gravity at day 6 (the kit said I could be ready to bottle after 7 days even though everyone says let it go for a few ...
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Can I derive Final Gravity from Original Gravity and ABV?

I think the answer is yes. Since we use OG and FG to determine ABV ... I would assume we could do the same with ABV and OG to determine FG, right?
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Should I be disappointed?

Just started, so my question is very basic. I got Coopers Lager Kit, did everything by instructions, temperature has been stable at 22-24C but gravity doesn't go down. OG was 1.039, dropped to 1.020 ...
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DIY BrewBug based offerings?

BrewBug, is a neat little toy that essentially has a "floating bob" that measures the temperature and specific gravity of the wort as it is fermenting, allowing for niceties like changing the ...