Anyone ever had an original gravity reading of 1.090 for a Pilsner? This is my first batch of home brew and the ingredient kit says it should have an o.g. of 1.042-1.044. Any help or advice is appreciated.Kyle

Used the right amount of water. 2.5 gallons to boil wort, then after I cooled it to pitching temp, I used the hydrometer to get a reading. Then, I added it to the carboy and filled with bottled water to the 5 gallon mark. Would it be off because I took the measurement before adding the water?

so I'm screwed when it comes to getting the correct abv, then? No use in taking a final gravity???

Why do you say that?You have the original gravity, which is about half of your measurement or 1.045.

OG= (90*2.5/5)/1000+1= 1.045

Quote from: alestateyall on September 21, 2014, 11:57:18 PMOG= (90*2.5/5)/1000+1= 1.045I don't know whether the reason for this is obvious at first, but it's worth understanding what's going on in this calculation because it's so fundamental to what we're doing here. From your measurement of 1.090, we know that you had 90 points per gallon (which you'll see referred to as PPG), and you had 2.5 gallons of wort, so the dividend is saying that you have 225 gravity points in your carboy. That amount of sugar stays fixed unless you add more or take some out. Now, you dilute this by adding another 2.5 g of water to get a total of 5 g of wort. The part in parenthesis now tells you that you have 225 gravity points in 5 g of wort, or 45 PPG. Dividing by 1000 and adding 1 gets you to your calculated SG of 1.045.Anyway, stare at that equation until it makes perfect sense, and you'll know something key to brewing beer. A great online resource for getting your arms around this is http://www.howtobrew.com/section1/chapter3-4.html.

Assuming it's mostly malt extract in there, you can safely assume that your OG is close to the kit's numbers. Other than mis-measuring your water there isn't really any way to modify it.