Questions tagged [final-gravity]

The specific gravity at the end of fermentation.

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55 views

Final gravity too high

I have an IPA that I've brewed in five gallon batches before. OG at 1.065 and FG at 1.010. Those were hydrometer readings. I scaled it down for a one gallon batch, and pitched half a packet of yeast (...
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108 views

Pale Ale All Grain, FG not achieved

I would like your input as to why my FG was far from the theoric on from brewer's friend calculator. All Grain Pale Ale: Maris Otter 4.7k Roasted Barley 94 gr Chinook 12 aau min 60 Cascasde 5 auu ...
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1answer
62 views

Measuring alcohol when using ginger bug

I have recently started to get my feet wet by making some ginger beers using a ginger bug to start the fermentation. I would like to know the alcohol content of my final product, but as the ginger ...
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1answer
42 views

Low FG due to cacao nibs?

I recently brewed an oatmeal cream stout from the Mashmaker book (recipe here https://growlermag.com/homebrew-recipe-oatmeal-cream-double-stout/) with the intention of adding some chocolate & ...
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2answers
99 views

How many gravity points will explode a bottle?

If a difference of around 3 gravity points (between primed and final gravity) will carbonate a beverage (yes, depending on style), how many gravity points will make a bottle bomb? No, I'm not trying ...
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1answer
84 views

cider stopped at 1.016! Is this ok?

So this is just my second year of home brewing cider from the apples in my property. Last year I had 16L and everything went as it should. Thus year though with a bumper crop I've ended up with 87L in ...
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2answers
102 views

High F.G. Pros and cons of fixes

I think I know why my F.G. is so high, but I would like to know what are my options to try and fix it and what are the pros and cons of each. Below is my recipe and readings during mash. the ...
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1answer
52 views

FG not achieved after two weeks.

I have brewed a stout intended to be around 6%. After two weeks the FG is 1.024 but expected to be closer to 1.010. I found when I made the yeast starter (Giga Yeast 011) the yeast clumped and ...
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2answers
88 views

What's going on with these gravities?

I'm a new home brewer. Since Christmas I've brewed 5 beers, all of which have been drinkable. The first I didn't have a hydrometer, the second I accidentally put in twice as much carapils as I was ...
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1answer
258 views

Porter high OG with fermentation stopping at 1.030?

I was doing a porter/stout with extract and also steeped milled smoked malt for a more smokey flavour as part of the process (steeped in warm water around mashing temperature for about 20 minutes ...
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1answer
666 views

Specific Gravity too low

I started my latests batch of IPA (from a Wilko kit) off 19 days ago. Unlike my previous attempts, fermentation began rapidly and consistent. It has slowed down over the past couple of days so today ...
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1answer
58 views

Higher starting gravity

Is it true to get a higher S.G. you can by add extra Suger and fermentables like extra suger DME. I 'm trying to find a way to raise, The S.G and F.G to get a higher ABV.
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Specific Gravities for Kombucha

The most-recent episode of Basic Brewing Radio has got me thinking about making Kombucha. What would be a typical OG (original gravity) and FG (final gravity) for a Kombucha?
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1answer
65 views

How much do melanoidins increase gravity?

I recently made an all-grain Russian Imperial Stout on a stovetop, and because of some volume miscalculations (or something), I boiled for 135 minutes to get down to my desired volume of 2.5 gallons. ...
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2answers
205 views

FG too low to read

I bought a hydrometer to level up a bit my game, It works great for Initial Gravity measures, it has a range from 0.997 to 1.100. My problem comes when it finishes the fermentation, I get a very VERY ...
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4answers
4k views

specific gravity too high to bottle?

I recently brewed the Brewer's Best Milk Stout, which uses LME plus lactose and maltodextrin. The original gravity was 1.060, which is within the specs for offered in the instructions. Now after about ...
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2answers
165 views

Can I fix a higher than anticipated OG after primary?

I just brewed a witbier that was way below the estimated preboil gravity of 1.49. I only got 1.34 in case you're wondering. I've never had that bad of an efficiency before. The grains came ...
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4answers
123 views

Is taking the gravity reading of a commercial beer useful when trying to clone?

I'm going to attempt a clone of a commercial beer. I already know the hops used and base malt. Obviously I know the ABV too. My question is if I take a gravity reading of the beer from the bottle ...
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2answers
450 views

High FG in primary fermentation

I am doing a Diabolo beer from this kit First, my OG was 1.070 (vs 1.075 recommended). Now, after 9 days (they recommend 10 days in primary fermentation), the FG is 1.018. The recommend value is 1....
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1answer
551 views

Is this final gravity too high?

I brewed a Chocolate Oatmeal Milk Stout with an OG of 1.062. After 2.5 weeks of what seemed like active fermentation, it's only at 1.030. It's been at that for a week. It tastes like a it will be a ...
3
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1answer
263 views

What is the definition of post boil gravity and how is it different to OG?

What is the definition of post boil gravity and how is it different from original gravity - or are they both the same thing. Beersmith uses both terms but aside from the fermenter top up to me they ...
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1answer
54 views

Proper target for dilution

I made a recipe that was supposed to have OG 1.062, FG 1.012 (ABV ~6.5%). I forgot to note the target volume in the recipe (just the pre-boil volume), and wound up with a wort with OG 1.077. I chose ...
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1answer
689 views

Hefeweizen final gravity too high

I started my Hefeweizen with a OG of 1.054 and used Wyeast 3068. The wort was well aerated but after 3 weeks my gravity is still 1.020 which seems a little high. The gravity reading I took a week ago ...
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2answers
329 views

FG of bottled condition beer lower than FG of fermented beer

I brewed a session stout about 4 months ago, and left it in the fermentor for two weeks. The FG was 1.012 one week in, and I checked every few days until 2 weeks in, and the FG remained at 1.012. I ...
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2answers
1k views

Is it bad to let air into my primary fermenter?

My beer has been in the primary for about 5 days now. I can only assume fermentation has stopped as its reached peak krauzen and the froth seems to be subsiding. I attempted to seal up my primary as ...
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3answers
1k views

Can FG be higher than OG?

I "brewed" a beer that was described as "Chinese Rice Wine", but it is 50% grain so I will call it a beer! Recipe: 18 liter batch; 2.5 kg boiled Rice, 2 kg sugar, a cup or so of raisins and one ...
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1answer
2k views

Should I back-sweetening a very dry mead?

So, I made a batch (4.5 gallons) of show mead using 10lbs of locust honey. Starting gravity was 1.091 I used dry white wine yeast and fermentation went relevantly quick (with some help of potassium ...
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3answers
177 views

What's wrong with my gravity?

I recently brewed an Imperial Red. It clocked in at around 1.072 on original gravity reading. My malt bill looked something like this: 12 lbs 5.0 oz Pale Malt (2 Row) US (2.0 SRM) 11 lbs Marris ...
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1answer
102 views

Why is IBU/GU a good measure?

Since the FG is what measures the residual sugar in the final beer, why do we use OG, instead of FG, to calculate the ratio of the bitterness over the sweetness in final beer? How precisely is the ...
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2answers
129 views

ceteris paribus, does mashing at a higher temperature lead to a higher final gravity?

I'm doing 6 lagers according to the Brulosophy Quick Lager method, where the temperature is raised to 65*F/18.3*C for the remainder of fermentation after attenuation has hit 50%. 2 of them have been ...
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3answers
1k views

Measuring SG on small (3.5l / 1g) batches

I do small batch brewing (3.5l-4l) and using hydrometer is a big pain for them, as I need to take very big amount of beer out to test it. I've learned to do OG readings with refractometer, but I get ...
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6answers
2k views

High FG / Low Attenuation across 3 different beers

I have brewed 3 all-grain batches now that have a high final gravity: Imperial IPA: Target OG - 1.079, Target FG - 1.011, Actual OG - 1.070, Actual FG - 1.020, Yeast - US-05. Common attenuation ...
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1answer
786 views

Making Sweet Mead this weekend

guys, I'm planning to brew a sweet mead this weekend with 15-18 lbs of honey for a 5 gallon batch... Here's my goal... I want it to be strong (15% or so) and sweet. I'm pretty much prepared, but ...
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3answers
991 views

What can I learn from fruit beer gravity?

I just bottled a batch of a watermelon beer where the gravities going into and out of primary matched the predictions (OG 1.050, FG 1.012). I added watermelon chunks in secondary and when it finished ...
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2answers
10k views

Adding yeast to secondary

Okay, I am making a strong (imperial-ish) red ale. My original gravity was 1.081. I intended to bring it to a final point at most of 1.020, or if I can even lower. I was using 2 packs of WLP004 (...
4
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2answers
293 views

Didn't get the expected O.G

I brewed a nano batch of single grain IPA and I don't know what I have done wrong. Before I started, I calculated the O.G. and F.G. as shown in the picture bellow. After boiling the wort from 5.3 ...
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2answers
546 views

Safe to bottle IPA with higher FG than expected?

The expected FG from my receipt was supposed to be 1014, but it has been stable at 1020 for about 3 weeks now. The wort has been on the fermentation tank for about 4 weeks, it reached 1020 after 1 ...
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1answer
151 views

Difference in FG from recipe

I just finished my second Brew in a Bag (BIAB) and although everything went well, I had a difference in my anticipated FG. The recipe and Brewmate was giving me a finaly gravity of 1.014 but it ...
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1answer
296 views

final gravity margin of error

So this is my first batch ever. My starting gravity was 1.058 7 days ago. My gravity yesterday was 1.007. Both within range for the recipe kit. I measured again today and got 1.011 in a beer thief. ...
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4answers
30k views

Consistently high final gravity

I started brewing about a year ago, currently on my sixth batch, all using extract and some additional grains. My problem is that my beers consistently finish with a higher than expected final gravity....
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1answer
867 views

Why doesn't FG reach 1.000?

My second beer brew has pretty much finished its primary fermentation. It started at 1.044 and is currently at 1.014... I don't expect it will go much further. Having brewed numerous wines I ...
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3answers
35k views

Can a refractometer be used for testing final gravity?

Can you use a refractometer to test final gravity?
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4answers
3k views

How can I reduce the ABV?

I have a batch fermenting at the moment. I had expected the OG to be 1.05x but it was 1.06x. I generally have little problem with fermentation and expect the batch to come out at somewhere like 1.0....
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1answer
952 views

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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2answers
2k views

SG and OG quite different to values indicated on can label

very quick question: making a kit brew (Coopers Real Ale), which says a typical OG is 1.046 and FG is 1.006. Unfortunately, my OG was 1.038, and my current reading (after about 17 days) is 1.013, and ...
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1answer
741 views

Will Adding Chocolate Affect the Final Gravity?

I am currently about 2 weeks into the primary fermentation a black stout to which I added 8oz of unsweetened cacao powder during the boil. The gravity seems to be stuck at 1.022 rather than the 1.014-...
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2answers
609 views

Stuck Ferm? Celebration Ale Clone Gravity at 1.021

Celebration Ale Clone (extract kit) White Labs California Ale Yeast (liquid vial, no starter, I know next time I'll make a starter) Pitched at 68 degrees and good activity 18 hours later, got up to 71 ...
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3answers
2k views

Variable Final Gravity when Priming for Bottle Conditioning

I was bottling a batch of beer last night and as always I take the last bit from the bottling bucket to test the Final gravity. When I tested it it read 1.044. After much talking amoungst ourselfs we ...
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4answers
1k views

Are the terms “dry”, “low FG” and “drinkable” synonymous?

Hopefully this doesn't fall under "opinion" but I believe this will help alleviate some questions on mashing/fermentation techniques. I guess you could break this question into parts. Also the term "...
4
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3answers
5k views

checking gravity during and after fermentation?

How could I pull out a little from my carboy to take gravity readings during fermentation? I tried to use a auto-siphon but it was a mess.