Initial gravity of wort (prior to fermentation).

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3
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3answers
331 views

Undershot OG with extract brewing

Today I attempted an American IPA (Extract) full boil. I calculated the OG to be around 1085 using beersmith. The recipe included just over 11lbs of fermentables (9.15lbs LME, 1.10lb DME, 1lb corn ...
4
votes
2answers
12k views

What to do when gravity comes out too low?

We brewed a maibock (from an extract kit) and when we checked our OG it was significantly lower than it should have been. I mean like, really, really low. We decided to attribute this to the wort not ...
13
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1answer
959 views

Original Gravity: Calculate or measure

I've been told that for extract brewing it's best to simply calculate the original gravity instead of measuring it. Is this correct? What are the pros/cons either way? What about with ...
4
votes
3answers
2k views

Brewed an Oatmeal Stout and the gravity did not drop as much as predicted, should I re-pitch or add yeast nutrients/energizer?

I just brewed an oatmeal stout see recipe details here and I have a question about missing Orignal and/or Final gravities. The OG was supposed to be 1.061 and the FG 1.016. I brewed and got an OG or ...
1
vote
1answer
325 views

Can I retroactively deterimine my OG with a refractometer?

Brewed a big Belgian beer last week. And using my refractometer (poorly, as it turns out), I wasn't able to get a solid reading of the OG. Now a week later I've taken a sample of the beer and want to ...
6
votes
2answers
267 views

Why measure gravities?

I've brewed a good dozen batches of beer from kits, extract, extract+grain, and now all-grain, and I've never measured gravities. Why measure gravity, besides to know what you're getting? Is there any ...
18
votes
3answers
4k views

How Does a Hydrometer Work?

I know how to use my hydrometer, and I know what numbers to look at and write down on my brewing sheets, but I'm not sure what those numbers actually represent, or even what units I should use to ...
3
votes
3answers
5k views

Why is our Original Gravity low?

When brewing from an extract kit we always seem to be low in the Original Gravity department. It's usually not a lot -- something like 1.055 instead of 1.060. What might be causing this to happen? Is ...
5
votes
2answers
904 views

Using Burnt Caramel / Brewer's Caramel in Recipes

Has anyone worked with using either burnt caramel or brewer's caramel in their recipes? I have read a few places that Fuller's is known to use this to increase the SRM of some of their product line, ...
11
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4answers
11k views

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?
5
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2answers
3k views

Why would OG be significantly higher than predicted?

I know there are several questions on the forum about OG being lower than predicted. Please bear with me though. I'm at a loss. I just brewed a straightforward extract wheat beer recipe. The ...
4
votes
2answers
190 views

What effect would using less LME than called for have?

I just brewed a recipe for a biggish beer that calls for 6.6 lbs of light LME and 2.75 lbs of light DME. Given that I always mess up at least one thing when I brew, I measured out 2.75 lbs of DME and ...
4
votes
2answers
5k views

Stuck or Slow Fermentation

So I have my first possible stuck fermentation. First, my recipe: http://hopville.com/recipe/166971/extra-special-strong-bitter-english-pale-ale-recipes/shoals-pale-ale-clone I pitched with two ...
16
votes
1answer
13k views

[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 ...
3
votes
3answers
200 views

Different OG than predicted

Just brewed a batch, and my OG reading is significantly different (1.051 as opposed to 1.070) than what Beercalculus.com predicted based on my recipe. Is there any possible reason for this that ...
4
votes
2answers
2k views

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 ...