Pliny recipe swap question

[brewprint]

I was looking online at https://www.homebrewersassociation.org/attachments/0000/6351/doubleIPA.pdf

I only have crystal 10 and plain ol table sugar. Do you think this would be a big deal to swap out the crystal 45 for 10 and swap the corn sugar for table sugar?

I'm thinking that it wouldn't make much of a difference as far as the crystal but I could be wrong. If it's just darker for the color I'm already using German 2-row that has a darker srm than US 2-row anyway.

 

[robopp]

The latest version uses C60, drops the carapils and uses a higher mash temperature. Do you have C60?

 

[brewprint]

The latest version uses C60, drops the carapils and uses a higher mash temperature. Do you have C60?

I do not but where did you get that information?

 

[robopp]

There's a thread on here where someone posted the brew sheet from RR. I'd provide a link, but I'm on my phone

 

[Beezer94]

https://www.homebrewtalk.com/showthread.php?t=522636
Post 28 in that thread: https://www.homebrewtalk.com/showpost.php?p=6811982&postcount=28

 

[brewprint]

Whoa!

Cascade and Amarillo and no Centennial!?

Dang.

 

[khillian]

http://www.bertusbrewery.com/2015/10/pliny-elder-40.html

^this! Just brewed this on day 5 of fermentation.

 

[Beezer94]

Whoa!

Cascade and Amarillo and no Centennial!?

Dang.

Centennial in the whirlpool

 

[brewprint]

http://www.bertusbrewery.com/2015/10/pliny-elder-40.html

^this! Just brewed this on day 5 of fermentation.

I read this but this guy says that it's 70ibu and I'm not even to the flame out additions and I'm at 111ibus.

Maybe I'm not understanding what he's saying for the first hop addition but I believe that I am. He has 1.33oz hops at 90 minutes. 1oz Apollo and .33 CTZ.

Is his math just way off or what?

 

[Beezer94]

I read this but this guy says that it's 70ibu and I'm not even to the flame out additions and I'm at 111ibus.

Maybe I'm not understanding what he's saying for the first hop addition but I believe that I am. He has 1.33oz hops at 90 minutes. 1oz Apollo and .33 CTZ.

Is his math just way off or what?

In the comments:

SCOTTOctober 30, 2015 at 10:48 AM
It should be 70IBU measured. The calculated IBU is likely in the 100s

It's just showing the supposed real IBU value from that picture of the official brew sheet

 

[brewprint]

In the comments:


It's just showing the supposed real IBU value from that picture of the official brew sheet

It seems to me that 70 is a far cry from 100.

I also realize that some people say that hops will mask IBU. This may be true but it doesn't take away actual IBU. If an IPA that has 100 IBU tastes like it has 70 IBU then it still has 100 IBUs.

 

[brewprint]

Also, my understanding with hop extract is that it will give the exact IBU that is targeted based on the water volume. With regular hops we're getting IBUs based on how long the boil is.

If 10 IBUs of say 1gram of extract is added to 6 gallons of boiling water then after an hour the 5 remaining gallons still have 10IBUs.

I could be wrong here.

 

[Beezer94]

You'll have to google the science, but basically there is a limit of how many IBU's can get into wort. The higher the starting gravity the harder to get more IBU's. The 70 IBU is just what their lab expects in the test of the actual isomerized alpha acids. They overshoot in estimation on purpose knowing the measured result will be lower. Plus hops have other components that have an effect on the beer.

Also only isomerized hop extract would add exact IBU; where most hop extract is just CO2 extracted hop resin which is just hops minus the vegetation, basically.