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Starting small with 2.5 gal brew.....newbie questions
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Turf




Joined: 26 Dec 2017
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PostLink    Posted: Fri Mar 16, 2018 2:31 pm    Post subject: Starting small with 2.5 gal brew.....newbie questions Reply with quote


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Okay, I'm going to do a BIAB brew very soon and I want to make small batches until I know what flavors I enjoy the most. The boiled wort will be transferred into a glass carboy and pitched with us-o4 yeast. Post-fermentation the beer will be transferred into a 2.5 gal corny keg. I'm assuming there will be a fair amount of oxygen pickup with the equipment that I am using, so please advise me on some steps to good beer. A good amount of flavor will come from whirlpool hop additions and a single dry hop during primary. Naturally carbonating with a spunding valve is of interest. Also the use of sugar and cbc-1 to help scrub oxygen in the keg. Thanks for reading and any possible help.

1. wort transfer into carboy for primary and yeast pitch. Using inkbird,thermowell, heat wrap and blow of tube.

2. Dry hop around day 3

3. Transfer to corny keg and spunding valve (number of gravity points prior?) CBC-1 added?

4. Cold crash

5. Remove spunding and connect CO2

6. Serve
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dp Brewing Company




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PostLink    Posted: Thu Mar 22, 2018 5:00 pm    Post subject: Reply with quote

Turf,
I would recommend getting a few batches under your belt before trying to do the spunding valve. Maybe you have done several batches already. From my understanding you will want to wait until you are a few points above your final expected gravity. Even then it will be hard to get your carbonation level exactly correct. What is the reason you want to use the spunding valve in lieu of adding corn sugar?

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wscottcross




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PostLink    Posted: Thu Mar 22, 2018 8:27 pm    Post subject: Reply with quote

My take on this is that you will end up with quite a bit more yeast in the keg with this method.

As for scrubbing O2 from the keg, why not just purge the keg with CO2 before the transfer? It is heavier than air and it is easy to vent the keg which pushes the lighter air out the vent.

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Turf




Joined: 26 Dec 2017
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PostLink    Posted: Thu Mar 29, 2018 9:58 pm    Post subject: Reply with quote

It’s just an interesting process that carbonates under pressure and saves co2 money.

I do have to leave town for a week starting next Wednesday and the brew will have been in primary for 10 days. Not sure as to what I should do before leaving. Leave in primary or rack it to the Corny?
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dp Brewing Company




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PostLink    Posted: Thu Mar 29, 2018 10:10 pm    Post subject: Reply with quote

It is interesting to do but you have to catch it at the correct point otherwise you either under carbonate the beer or you do it too soon and stress out the yeast and the beer may not ferment down as far as it should. Unless you have a spunding valve.
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kal
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PostLink    Posted: Thu Mar 29, 2018 10:44 pm    Post subject: Reply with quote

Turf wrote:
It’s just an interesting process that carbonates under pressure and saves co2 money.

You mention in your subject line that you're a newbie. Like dp Brewing Company mentioned, I would agree that it's best to get a few brews under your belt before you attempt something advanced like this. Learn the walk before you try running.

Quote:
I do have to leave town for a week starting next Wednesday and the brew will have been in primary for 10 days. Not sure as to what I should do before leaving. Leave in primary or rack it to the Corny?

What the beer (recipe/specs/etc)? Do you expect fermentation to be done by day 10? How long are you leaving for? What's your primary equipment?

Kal

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Turf




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PostLink    Posted: Fri Mar 30, 2018 12:15 am    Post subject: Reply with quote

American IPA that’s in a glass carboy for primary. FG has to get down to 1.011 using us-05. Temp is at 66*F.
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kal
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PostLink    Posted: Fri Mar 30, 2018 12:43 am    Post subject: Reply with quote

How long are you leaving for?

Kal

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Turf




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PostLink    Posted: Fri Mar 30, 2018 12:44 am    Post subject: Reply with quote

8 days
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kal
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PostLink    Posted: Fri Mar 30, 2018 12:49 am    Post subject: Reply with quote

If you don't think it'll be ready to keg beforehand, no harm in leaving it for 8 days in a glass carboy.

Kal

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Turf




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PostLink    Posted: Fri Mar 30, 2018 12:51 am    Post subject: Reply with quote

Okay thx. Maintain the same temp untill I return ?
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kal
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PostLink    Posted: Fri Mar 30, 2018 12:54 am    Post subject: Reply with quote

Sure. It should be well done fermenting.

Kal

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Turf




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PostLink    Posted: Mon Apr 02, 2018 12:41 pm    Post subject: Reply with quote

Today is day 9 in the carboy primary and the krausen has dropped and flattening out. CO2 in the airlock seems to have stopped or is very spread out. Now I seem to be experiencing some suck back in the air lock. I noticed on day 6 that the level within the air lock was low and I refilled it two times since. I filled it a little while ago and it already looks like it is starting to draw back the starsan again. What’s going on? Last week when I was doing my dryhop additions, I would top off the carboy with some co2 before reinserting the air lock and thermowell. Not sure if this created a suction or not??

Thinking I might keg and spund before leaving for out of town on Tuesday night.
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Turf




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PostLink    Posted: Mon Apr 02, 2018 12:50 pm    Post subject: Reply with quote

Pic of how the airlock settled this morn after another fill. You can see both levels of starsan in the main chamber and within the covered inside tube.


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dp Brewing Company




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PostLink    Posted: Mon Apr 02, 2018 1:45 pm    Post subject: Reply with quote

Has the temp dropped in the carboy?
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Turf




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PostLink    Posted: Mon Apr 02, 2018 1:56 pm    Post subject: Reply with quote

No, according to the Inkbird in the thermowell and the stick on glass temp gauge it’s maintaining.
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dp Brewing Company




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PostLink    Posted: Mon Apr 02, 2018 2:39 pm    Post subject: Reply with quote

I've had a similar situation, but mine leaked back into the beer from the first time I used it. I just threw it away and used a different one. Couldn't tell you why it was doing it but the replacement worked fine.
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Turf




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PostLink    Posted: Mon Apr 02, 2018 2:58 pm    Post subject: Reply with quote

Yeah, I don’t believe that there is a problem with the airlock, but I do believe some starsan May have been added to the beer. Shouldn’t be much.
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dp Brewing Company




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PostLink    Posted: Mon Apr 02, 2018 3:02 pm    Post subject: Reply with quote

At that small volume shouldn't be an issue.
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Turf




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PostLink    Posted: Mon Apr 02, 2018 4:20 pm    Post subject: Reply with quote

Yeah, the problem is leaving it iunattended for the next week. I’m just going to let it finish in the corny . I have a spunding valve that I can try. Any idea as to what the pressure it is usually regulated at?

Last edited by Turf on Mon Apr 02, 2018 5:41 pm; edited 2 times in total
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