High gravity brew - Grainfather

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RickyBeers

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I know there has been other posts on high gravity brewing with the dilution process coming before fermentation but figured I would discuss my particular situation.

I have a somewhat unique local source that focuses on keg equipment but the owner has started to blend his inventory to focus more on home brewing. Likely because he knows I will buy just about anything to fuel my brewing addiction.

I cut a deal with him to brew him a 5 gal batch ($50 off a purchase) but I have absolutely no interest in spending 5+ hours brewing someone beer for less than $500. I told him I would do it if he would be part of my high gravity experiment to brew 10 gallons on a standard grain father. That way I get beer out of this investment as well.

For the recipe I used my Grainfather app and toggled between 10 gallons and 6.5 gallons (final volume into fermenter for both) as I added ingredients to see the ABV, ibu, etc.

I want to be able to perfectly measure out 3.25 gallons after boil and cooling into two corny legs, then top them off with RO or distilled water. I need to buy another spunding valve since I ferment under pressure (RIP…) but I’m not willing to buy a second Tilt.

I plan to put the tilt into both fermenters to compare the OG and temp but then obviously keep the tilt in one vessel, pressure both to 25 psi, stick them side by side in a temp controlled area with my inkbird holding 95f for kveik temps, and let em rip. I’ll assume one is done when the other tilt shows stable gravity.

According to the app I should expect 4.7% alcohol and 27 ibu if the batch is diluted to 10 gallons. I normally want 15 ibu when I’m going for an American “lager “ but worry about losing some flavor during dilution.

What holes do you see in this plan? Any suggestions?
 

Spundit

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It makes sense to me. A couple things to consider if you haven't already.

1. Diluting with straight ro water will reduce the mineral content of the final beer. If you are expecting any contribution from the minerals make sure you plug that into the calculator as well to ensure your final beer is hitting your targets. It is easy enough to add some minerals to the dilution water if needed.

2. I would have some DME on hand in case you miss your pre-boil gravity.

I am sure you will make drinkable beer and could always tweak it a little next time.
 
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RickyBeers

RickyBeers

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All good points. I agree with mineral
Content and def will get some DME just in case.
It makes sense to me. A couple things to consider if you haven't already.

1. Diluting with straight ro water will reduce the mineral content of the final beer. If you are expecting any contribution from the minerals make sure you plug that into the calculator as well to ensure your final beer is hitting your targets. It is easy enough to add some minerals to the dilution water if needed.

2. I would have some DME on hand in case you miss your pre-boil gravity.

I am sure you will make drinkable beer and could always tweak it a little next time.
 

marc1

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I want to be able to perfectly measure out 3.25 gallons after boil and cooling into two corny legs, then top them off with RO or distilled water. I need to buy another spunding valve since I ferment under pressure (RIP…) but I’m not willing to buy a second Tilt.

What holes do you see in this plan? Any suggestions?
I'd add the water to the kegs first, then top off from the fermenter. In any case, put them on a large scale so you can get accurate fill measurements.
 
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RickyBeers

RickyBeers

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I'd add the water to the kegs first, then top off from the fermenter. In any case, put them on a large scale so you can get accurate fill measurements.
Scale idea is AWESOME. I was thinking how annoying it was going to be to try to equally distribute the wort and water using a 1 gallon measuring cup. High IQ idea with the scale, thank you!
 
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RickyBeers

RickyBeers

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I just realized I think you can ferment two kegs with 1 Spundit2.0, does anywhere know where directions are for that?
 

Gusso

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You can but you need that jumper line that fits in the SPUNDit. Trong was nice enough to send one to me.
 

Spundit

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I just realized I think you can ferment two kegs with 1 Spundit2.0, does anywhere know where directions are for that?
You know... I am only just now realizing I stole a products name as my handle. I thought I made that up on my own. ...and I am using a picture of a competitors product as my avatar. Hmmm.....
 
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RickyBeers

RickyBeers

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You know... I am only just now realizing I stole a products name as my handle. I thought I made that up on my own. ...and I am using a picture of a competitors product as my avatar. Hmmm.....
if only I could read between the lines
 
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