Estimate OG after water top off?

[Squid2015]

I brewed an double IPA this weekend. but a few mistakes...
1. must have made a wrong adjustment to BeerSmith equipment profile, after boil resulted in less than 5 gal remaining.
2. forgot to attach dip tube on boil kettle, which of course resulted in more trub in fermenter and more wort left in kettle to minimize trub.

estimated only about 3 gals entered fermenter. Took gravity reading was 1.095.. target was 1.083. Sample had trub floating in it. Could have that affected the reading?

To get to 5 gals, i topped off the fermenter with 2 gals of water (boiled it for 15mins, then cooled via counterflow chiller). At that point instead of using a wine thief to take another reading, i added oxygen and ended the brew day.

Is there a way to account for the extra 2 gals of water in the OG calculation after the first reading?

 

[hio3791]

G1V1 = G2V2

Gravity points remain constant, so...

95x3 = 5G
G = 57 => 1.057

 

[Squid2015]

thanks fellow yinzer

 

[RM-MN]

I brewed an double IPA this weekend. but a few mistakes...
1. must have made a wrong adjustment to BeerSmith equipment profile, after boil resulted in less than 5 gal remaining.
2. forgot to attach dip tube on boil kettle, which of course resulted in more trub in fermenter and more wort left in kettle to minimize trub.

estimated only about 3 gals entered fermenter. Took gravity reading was 1.095.. target was 1.083. Sample had trub floating in it. Could have that affected the reading?

To get to 5 gals, i topped off the fermenter with 2 gals of water (boiled it for 15mins, then cooled via counterflow chiller). At that point instead of using a wine thief to take another reading, i added oxygen and ended the brew day.

Is there a way to account for the extra 2 gals of water in the OG calculation after the first reading?

It's a bit late for this batch so this advice is for the next. When you boiled off more water than expected what got boiled off? Water, of course so you could have just added water back to get your expected quantity and that should have gotten you your projected OG, The trub floating in the sample would not affect your gravity reading. If it were more dense than the sample liquid it would have quickly settled to the bottom.

Forget minimizing trub by leaving it in the kettle. Dump it all into the fementer. When the yeast get done mixing everything up, the trub will settle out and the yeast will settle out on top of it. That's where you minimize the trub and maximize the beer by being careful transferring the beer to the bottling bucket or keg. It may even get you clearer beer if you put all the trub into the fermenter as the yeast seem to like it there.

 

[IndyBlueprints]

Forget minimizing trub by leaving it in the kettle. Dump it all into the fementer. When the yeast get done mixing everything up, the trub will settle out and the yeast will settle out on top of it. That's where you minimize the trub and maximize the beer by being careful transferring the beer to the bottling bucket or keg. It may even get you clearer beer if you put all the trub into the fermenter as the yeast seem to like it there.

Are saying whirlpooling and leaving a 1/2 gallon in the boil kettle is a waste of a 1/2 gallon of good beer?

 

[RM-MN]

Are saying whirlpooling and leaving a 1/2 gallon in the boil kettle is a waste of a 1/2 gallon of good beer?

Not quite. You will still be losing some to the trub in the fermenter but most of what is in your whirlpool is wort. The trub itself is a small part of what you leave behind. When the ferment is over and the yeast has settled out the trub will be on the bottom below the yeast, Try it yourself. Also compare similar beers as for clarity.

 

[Squid2015]

According to this brulosophy article, more trub... clearer beer.

http://brulosophy.com/2015/03/22/the-impact-of-kettle-trub-part-2-exbeeriment-results/