Recipe hop percentage question...

[JJFlash]

This recipe gives hops as a percentage that I need assistance at understanding correctly.
Never seen a recipe quantity written like this before.
It comes from one of the LoDo authors, apology forgotten which one.

For hops:
60/30/10
50% at 60 minutes
25% at 30 minutes
25% at 10 minutes

I assume this is a percentage of IBU's, as a percentage by weight does not make any sense to me.
Any other way to interpret this?

 

[day_trippr]

Bizarre. That would only make sense if it was a single hop recipe and the total amount of hops was expressed...

 

[keystonehb]

Bizarre. That would only make sense if it was a single hop recipe and the total amount of hops was expressed...

+1 to that, what hops are involved in this kit? A little more information is needed

 

[jdauria]

Pretty sure you are right that it's a percentage of IBU's. What hops did the recipe call for, was it more than one varietal?

Having dabbled with LoDo in the past and still a member on their website (the ****************) and Discord, I know their old LoDo spreadsheet broken German hops into categories, A, B, C.... your higher alpha group A hops, mid level alpha hops in group B, and aroma hops in group C. And on that spreadsheet, it recommended 50% of the IBUs come from group A hops, 20-30% of IBU's from B hops, and the rest from group C. I lost the spreadsheet when my work network got attacked with ransomware and they got my Dropbox files too. Let me see if I can find it online. I am pretty sure the A group was Magnum and Perle hops.

 

[jdauria]

Found it... sorry for crappy quality of pic. Took screenshot on my phone to upload.

 

[keystonehb]

Found it... sorry for crappy quality of pic. Took screenshot on my phone to upload.View attachment 869493

Does the kit come with every hop in the group or are you meant to choose from them? Does the recipe say what IBU each addition should be or is that the only info about it?

 

[jdauria]

Does the kit come with every hop in the group or are you meant to choose from them? Does the recipe say what IBU each addition should be or is that the only info about it?

The chart I posted was not from the recipe the OP was talking about...it is from the old German Brewing website forums, (German Brewing spreadsheet) where many of the Low Oxygen guys were on before the LoDo site ****************. It's now the LoDo site forums as the Low Oxygen brewing sheet. Was just showing him that this is probably where listing IBUs at 50% at 60, 25% at 30 and 25% at 10 from his recipe came forums.

If creating a recipe, you would not use all the hops on the chart, you would select which to use. I have used this method for my German beers, but there are plenty of times I just use all Saaz, or all Mitt, or sub US hops like Sterling, Mt. Hood or Liberty instead.

 

[keystonehb]

The chart I posted was not from the recipe the OP was talking about...it is from the old German Brewing website forums, (German Brewing spreadsheet) where many of the Low Oxygen guys were on before the LoDo site ****************. It's now the LoDo site forums as the Low Oxygen brewing sheet. Was just showing him that this is probably where listing IBUs at 50% at 60, 25% at 30 and 25% at 10 from his recipe came forums.

If creating a recipe, you would not use all the hops on the chart, you would select which to use. I have used this method for my German beers, but there are plenty of times I just use all Saaz, or all Mitt, or sub US hops like Sterling, Mt. Hood or Liberty instead.

I assumed that was the case. Just wanted to be certain.

 

[JJFlash]

Thank you all for your responses.
jdauria you were right on!
I believe the recipe is from the article Brewing Modern Monastic Ales by Derek Scott.
Brewed the Dubbel 2 days ago using this method as percent of total IBU's.