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Questions tagged [original-gravity]

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Initial gravity of wort (prior to fermentation).

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42 views

Gravity loss after settling?

Just made my second batch using an Anvil Foundry all-in-one brewing system. I used an immersion chiller to bring the wort down, but could only get it down to 82F (groundwater in Texas in August... ...
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3answers
151 views

How to measure starting gravity without a hydrometer

How would one go about calculating starting gravity without a hydrometer? I know that there is a way to mathematically determine this, which is what I'm looking for.
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1answer
71 views

Under OG, and only 3 days fermentation

So, I'm brewing an all-grain batch of the Rogue Chocolate Stout Clone based on this recipe (https://www.homebrewersassociation.org/homebrew-recipe/rogue-chocolate-stout-clone/). I divided the recipe ...
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2answers
93 views

Having doubts about my first stout

I just had an issue with an oatmeal stout. I'm just starting to brew beer at home (BIAB) and I think I made some mistakes. I had my water at 80°C hoping for the decrease of temperature to 72°C when ...
2
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1answer
194 views

Fermentation time for APA with 1.080 OG

I brewed my first batch (APA) and while boiling I lost way too much water which resulted in higher OG. Expected was 1.050 but I got 1.080. I added Safale US-05 (1 pack) and left it to ferment at 20°C (...
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1answer
118 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 (...
2
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1answer
75 views

Really fast attenuation with starter. Is this to be expected

A little bit of background: I finished brewing a black IPA and pitched yeast around 5:00 on Sunday. Admittedly, the wort was a little warm (75F), because it was 9 degrees outside and I was in a ...
3
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1answer
213 views

How to calculate amount of water to add to lower OG to target

I have been using less water than needed in my partial mash recipes. For a target of 8 gal into 2 (5 gal) fermenters, I have been using 3 (+1 gal sparge) in the mash step and 2 gal for boiling ...
6
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2answers
125 views

ABV from one SG?

The most common way to calculate ABV (Alcohol By Volume) is through some correlation between Original Gravity (OG) and Final Gravity(FG). Is there any way to calculate ABV just from the current ...
2
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2answers
90 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 ...
11
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3answers
2k views

Diluting beer after 11 hours of fermentation. What to expect?

Ended up with too high gravity wort. Since I was not prepared for this I didn't have enough sterile water to dilute the wort. I ended up pitching the yeast anyway and adding sterile water at 11 hours ...
2
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1answer
45 views

Low OG, thinking it's the milling - thoughts?

I've recently made the move to a top tier system and have retired the trusty old turkey fryer with the objective of conducting some more tightly controlled brews over the next few years. I've done all ...
3
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2answers
111 views

How to get higher gravity

I am using 60kg undermodified 6 row barley for 300 litres, I performed 60 minutes rest at 64°C and 30 minutes rest at 72°C, but I got 12°Plato original gravity (1.048) after boiling. Please help me ...
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2answers
98 views

Mr Beer sells Brew Max

Does anyone know what Mr Beer Brew Max is? Also what can be substituted for it?I am trying to raise my A.B.V. in my home brew. I ask because I need a substitute. It almost looks like very small pieces ...
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2answers
4k views

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
82 views

Supplementing with ethanol? Is that a thing

I'm transferring my first white IPA to secondary tomorrow. It smells great, but there is one problem. A really low OG. I can only assume my protein rest wasn't sufficient to break down the proteins ...
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1answer
2k views

Adding Sugar before primary fermentation and a few associate Gravity Questions

I mentioned in a previous question that I am about to have a go at my first home brew. This was prompted when the brother-in-law's girlfriend gave me a beer kit for Christmas (Tom Caxton Real Ale). ...
5
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2answers
190 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 ...
3
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1answer
324 views

How important is it to hit a recipe's target OG? What if my OG is too high?

I just brewed a chai tea brown ale (recipe here) -- which has a target OG of 1.048 -- and ended up with an OG of 1.064. My efficiency for this batch hit 78%, which I presume is higher than the recipe ...
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1answer
612 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
434 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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2answers
2k views

What's the average loss of gravity after two days of fermenting?

I was just curious because I took what was supposed to be my OG two days after because my hydrometer came late. The reading seemed very low, 1.030, and I was hoping I lost at least .010 from the ...
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3answers
240 views

My OG is too low

I've just done a 5 liter all grain brew. The Original specific gravity is supposed to be 1050, but its 1020. What have I done wrong, and will the brew be OK. I thought that I had the grains properly ...
4
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3answers
227 views

Raising OG before pitching yeast

I am using an all-grain recipe for a Belgian ale. My OG came out to 1.052 rather than 1.081-5. What can I do to raise the OG before pitching the yeast? Will a pound or two of malt extract help?
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1answer
118 views

Question regarding which volume to use for OG calculation

My question is regarding which volume to use when calculating OG, and more importantly why. How to calculate the gravity points for a recipe is fine, but then according to BeerSmith at least, you ...
2
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3answers
114 views

Pilsner extract kit: why is the original gravity low?

I've just put the extract version of this in the fermenter: http://www.wagonbrewing.co.nz/panhead-port-road-clone?search=pilsner The gravity is 1.037 which seems way low. Dammit I don't want no weak ...
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1answer
57 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 ...
3
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1answer
63 views

Is delayed yeast activity normal?

I am working on a small batch, 1 gallon of Pale Ale. It came in a kit and the yeast was not labeled so I am not sure what kind it is. This is only the third batch I have brewed. On my first two ...
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1answer
748 views

Adding water just after fermentation has started, wait, or not worth it?

I brewed this recipe last night: http://beerrecipes.org/showrecipe.php?recipeid=1254#sthash.U5JgSM6X.GnSCunwe.dpbs I don't think we added enough water and it looks like the OG is around 1.1 although ...
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1answer
416 views

Cider original gravity is 1.11. Why is it so high?

Bought a Mangrove Jack's brewing kit and some strawberry and pear cider. The cider I bought is supposed to be 4.7% but after following the instructions exactly and checking that the hydrometer was ...
2
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1answer
483 views

What is the approximate batch size/OG limit for US-05 11g packet? Have I used enough?

I've started a brew with an OG of 1.065 in a 23L batch. I pitched a rehydrated 11g pack of US-05 and after 5 days I took a FG reading when I observed no bubbles after some time; it came out at 1.028 - ...
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4answers
124 views

Can I decrease Original Gravity of the beer during fermentation process?

I am trying to brew 5 gal of Dunkelweizen. I used instructions from: Dunkelweizen I measured the OG of 1080 after cool down the wort. It should be 1050-1053. What should I do in order to decrease ...
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3answers
2k 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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3answers
180 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 ...
3
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1answer
133 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 ...
2
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1answer
2k views

How low an original gravity is too low?

I just brewed this extract IPA. I had 4.6 gal in the fermentor when I measured original gravity at 1.053 (@80 degrees), on the low end of the target range for 5 gallons (target 1.059, or 1.053-1.062)....
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3answers
103 views

Looking for process improvement suggestions

I just did my 4th brew, my OG was lower than expected, and I'm looking for help with process improvements. I'm doing an all grain process. I have an 8gal kettle, a 2gal kettle, and a 0.5gal kettle. ...
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2answers
119 views

Specific and generic questions from a first timer - size of fermenter, flavoring, gravity, sanitation

I just brewed my first ever German Weizen (using True Brew kit) on Saturday (today is Monday) and it's sitting in a plastic 6 gallon bucket (but there's only 5 gallons of it). I have some questions ...
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1answer
265 views

Improvements for Geordie Winter Warmer

I've just started a single can Geordie Winter Warmer kit and having read some negative reviews about this kit turning out "weak" and "watery" and like "beer flavoured soda water" I'm naturally having ...
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3answers
5k views

How to add DME to the wort

I typically use LME for my wort, with no prblems, but this time I am trying a slightly bigger beer and want to add DME to boost the OG. The one time I tried adding DME to my wort, I just dumped it ...
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3answers
797 views

Trouble Reaching My OG (Pre-Boil Was OK)

Last week I brewed an Arrogant Bastard clone. My pre-boil gravity was off by .001 so I was pretty happy with that... But my OG (post-boil) was off by .009! I thought that because my pre-boil gravity ...
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2answers
186 views

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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0answers
22 views

Missed Expected OG, Sparging Issue? [duplicate]

I brewed my first all grain batch this past weekend and everything went pretty smooth except my OG was 1.050 instead of the 1.056 I was expecting. Would this be a sparging issue? I had calculated a ...
0
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1answer
8k views

Is it possible to calculate ABV% without Original Gravity? [duplicate]

Seems that when I was brewing my batch I forgot to take a gravity reading. Is there any other way to calculate ABV% without this measure? Thanks in advance
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1answer
398 views

How can I prime by taking the gravity of the priming fluid?

I have this great mulberry syrup I found. I want to prime with it, and I forget how to figure this out with an unknown sugar source. I see that John Palmer's "How to Brew" references measuring the ...
4
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2answers
316 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 ...
5
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4answers
2k views

How does a yeast starter affect original gravity reading?

I've prepared a 1qt (~1L) yeast starter according to instructions from Wyeast.com. I didn't measure its gravity, but in theory it should be about 1.040. I am brewing a 5 gallon batch of high gravity ...
0
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1answer
276 views

Liquid yeast, do need to make a starter?

I'm making mini batches with IPAs(4-5 liters/ca 1,5 gallon), and with my three first brews I've used dry yeast. On my next mini batch I'll use liquid yeast(WLP005), do I need to make a starter or is ...
4
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1answer
12k views

What happens when mash temperature is too low?

So yesterday we brew our second beer. As expected, some errors occured during the process, which is alright, we're learning! :) So the main problem is that we were only able to keep the mash ...
8
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2answers
37k views

How to calculate alcohol without OG reading?

I tested 'brewing' a cider for the first time a few weeks ago. Since this process was so extremely different from what I am used to with brewing beers I completely forgot to take an OG reading. To be ...

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