Guinness Clone Questions
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Could use the second pack for a starter and then harvest the yeast to use sometime in 1-2 months?
beren
Well-Known Member
Make a 2l starter. Put half in a 2nd batch of Guiness and get some vials and make 10 starter vials Maintaining A Healthy Yeast Bank Long Term
Makes liquid yeast for each batch $1 or less
Makes liquid yeast for each batch $1 or less
hawkwing
Well-Known Member
That’s what I want to do. Years ago I harvested yeast and froze some. But then life happened and I didn’t have the time to brew for a while.
It ended up taking off just in time for me to set it up before I left. I have the gas port on my fermentation keg connected to the beverage out on the serving keg. (I cut the tube short so it doesn’t stick down). Then I put the spunding valve on the gas out on the serving keg. I set it to 10 PSI. That’s should be 1.2 volumes C02 at room temperature. Which is what a quick google said. Then I’ll just hook up with nitrogen to serve at whatever pressure it’s supposed to be. I think it needs to be higher than CO2. I might need a longer serving line not sure.
It’s also time to get my CO2 tank tested and filled. Got 1.4 lbs in a 20 lbs tank.
It ended up taking off just in time for me to set it up before I left. I have the gas port on my fermentation keg connected to the beverage out on the serving keg. (I cut the tube short so it doesn’t stick down). Then I put the spunding valve on the gas out on the serving keg. I set it to 10 PSI. That’s should be 1.2 volumes C02 at room temperature. Which is what a quick google said. Then I’ll just hook up with nitrogen to serve at whatever pressure it’s supposed to be. I think it needs to be higher than CO2. I might need a longer serving line not sure.
It’s also time to get my CO2 tank tested and filled. Got 1.4 lbs in a 20 lbs tank.
beren
Well-Known Member
Why ferment under pressure? the wyeast irish ale hits FG in like 3 days anyway
As far as freezing it's way cheaper and easier than ordering liquid in the summer... even from the lhbs.
As far as freezing it's way cheaper and easier than ordering liquid in the summer... even from the lhbs.
hawkwing
Well-Known Member
Well a few reasons. One it’s something new to try. Two it’s carbonated already. Three apparently I don’t have to worry about the temperature and flavors as much. Four I can do a closed to air transfer.Why ferment under pressure? the wyeast irish ale hits FG in like 3 days anyway
As far as freezing it's way cheaper and easier than ordering liquid in the summer... even from the lhbs.
hawkwing
Well-Known Member
I noticed that this method does not rinse the yeast. Not sure if it matters or not?
beren
Well-Known Member
One you don’t harvest from beer that you made just the starter, and two I believe everybody says washing the yeast is actually worse nowadays.
hawkwing
Well-Known Member
Well it looks like my fermentation is complete. It’s been two weeks or more since I pitched. I’m not completely trusting my spunding valve. I set it to 10 psi and when I got home it was 15. I adjusted again and waited a week. Then a couple days ago it was back up higher than it’s supposed to be. Anyway today I disconnected it all and put it in the kegerator to cold crash and clean. Is a week enough for this or should I chill for 2 before transfer long time the serving keg?
Also what pressure should I set my nitrogen to and how long do I need to let it absorb before drinking? Is it similar to CO2 for time? I’ve ready 30-45 psi for nitrogen. Do I need a longer beverage line for pressure drop?
I got a stout spout for my kegerator for now. I’ll get a stout tap someday.
Also what pressure should I set my nitrogen to and how long do I need to let it absorb before drinking? Is it similar to CO2 for time? I’ve ready 30-45 psi for nitrogen. Do I need a longer beverage line for pressure drop?
I got a stout spout for my kegerator for now. I’ll get a stout tap someday.
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Nitrogen does not dissolve in water (beer) at least not appreciably. Typically when people serve a nitro beer they are using 75% nitrogen 25% CO2 "beer gas". Others who know more about this will have to chime in here as I have never used it. I just know Nitrogen does not dissolve like CO2 in beer.
hawkwing
Well-Known Member
Well I fermented under pressure so hopefully have close to the right amount of co2. I thought I might need a diffuser for the nitrogen but someone on here told me that was wrong thinking. I dunno. But for now I don’t have a diffuser in the keg. However the pressure for nitrogen needs to be higher.
beren
Well-Known Member
I force carb it with co2 then put it on nitro. The nitro doesn’t really dissolve in beer like co2 does that’s why it’s used for normal beer with long lines. I think I use 36 or 38 on my dial gauge. More and it has a giant head.
beren
Well-Known Member
Oh don’t try to use nitro with a normal tap. You’ll have beer shot all over at the high pressures. This says chrome but mine came stainless KegWorks Amazon.com: KegWorks European Specialty Stout Beer Faucet in Chrome: Restrictor Beer Faucet: Home & Kitchen
hawkwing
Well-Known Member
I have a stout spout for my Nukatap faucet. They say it's make for nitro beers.
hawkwing
Well-Known Member
What pressure and temperature do you force carb too? Since I pressure fermented to 10 psi at room temp or a cool room temp this time of year it should be in the ballpark for a 25% CO2 blend.
beren
Well-Known Member
I shake it at like 25-30psi for a bit, then chill it at12psi, co2 is a lot cheaper than beergas
I usually carbonate with 10 psi of CO2 for a few days (3 is usually enough, but I do use small kegs), then switch to 40 psi beer gas. I then wait a day for whatever nitrogen is going to dissolve. The pour is definitely different after that day wait, so getting nitrogen into solution does matter. You do not need a longer line; the stout faucet/tap provides enough restriction as it is.
hawkwing
Well-Known Member
Well it turned out great! I'm very happy with it. The Grainfather S40 worked well especially for the sale Price. Basically half regular price. I'm going to make a few mods so I can have the lid on during recirculation and not make a big mess with a decent flow rate. Pressure fermentation and carbonation with closed transfer worked well. Got it on 40 PSI nitrogen. It's not going to last.
But I was pickup up ingredients for the Wee Heavy I'm going to be making and there was a half price sale on recently past best before yeast packs of Wyeast and Imperial. Going to add them to my yeast bank. Then figure out what I'm going to make with them.
But I was pickup up ingredients for the Wee Heavy I'm going to be making and there was a half price sale on recently past best before yeast packs of Wyeast and Imperial. Going to add them to my yeast bank. Then figure out what I'm going to make with them.
Looks great!
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