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-   -   Will the size of my starter be ok? (http://www.homebrewtalk.com/f163/will-size-my-starter-ok-366677/)

Threetall 11-10-2012 01:15 AM

Will the size of my starter be ok?
So I bought wyeast 1728 scottish ale for a holiday porter on the recommmendation of the person at the LHBS. The beer is going to be around 1.065 (or even more if my efficiency is higher than expected) and am planning for a 6 gallon batch so 5.5+ gallons into the fermentor. The online yeast calculators say I need a huge starter 3-4 l for this beer. I only have the capacity for 2L of starter, will this be ok?

Hex23 11-10-2012 03:28 AM

Sounds like a volume that would be required for a starter that was completely left still. Intermittent shaking or a stirplate should reduce that significantly. Otherwise you can do a stepped starter to work-around your volume limitations. I would not recommend underpitching.

greatschmaltez 11-10-2012 03:37 AM

Agree with Hex. Make sure you got the right settings on Mr Malty... I can't see a 2 liter starter not footing the bill on this beer... It's not that big.

Golddiggie 11-10-2012 03:39 AM

Production date on the yeast packet? Do you have a stirplate or not?

I would recommend using a stepped starter (at least two steps) of sizes to get to the cell count needed to pitch. Yeastcalc.com will let you select up to three starters, with aeration methods to get your target cell count.

IMO/IME, it's better to be closer to the target cell count than far short. I typically aim to be within less than 5% of the size/cell count needed for a batch. With a stirplate in the mix, you can make smaller starters that finish far faster (the speed of the starter is the more important item typically).

Threetall 11-11-2012 04:42 PM

Manufacturing date was october 17th I think(I threw out the yeast package, and the trash bag got replaced). I do not have a stirplate.
The yeast has been fermenting since Friday night. I was thinking about putting it in the fridge, decanting the growler and adding .5 L of wort into the growler (or will I not have enough space)? Activity is still evident in the 2 liter starter. I am planning on brewing tomorrow.

I'm actually thinking I'll just let this 2 liter starter ferment, refrigerate it overnight, and pitch. It seems like 2 liters should be enough.

Golddiggie 11-12-2012 02:42 AM

If it was October 17 (or around there) then a 2L starter (with intermittent shaking) would get you close (only short by 19 Billion yeast cells). With a stirplate, a 1.6L starter would have given you 250 billion cells, 2 billion over the target (248 billion cells).

I seriously advise getting/making a stirplate and using it in the future.

I don't like to add extra spent starter wort into a batch of beer I brew. I chill/cold crash, and decant, all my starters. I'm brewing next weekend, with a two starter step schedule. I'll be making the first starter tomorrow/Monday so that I'm fully ready to brew come next Saturday.

Threetall 11-12-2012 03:00 PM

Oh yeah a stirplate is probably a good investment, but this was my first time making a starter so I didn't have all of the materials. I usually use dry yeast, and didn't realize the work involved with the liquid strain.

Golddiggie 11-12-2012 03:38 PM

Use the site I linked to earlier (yeastcalc.com) to figure out your starters in the future. Either make, or buy, a stirplate before you use liquid yeast again. It will make the starter finish MUCH faster and you can make a smaller one to boot. Go with a two (or three) step starter if your flask isn't big enough in a single step. I do that often since it's one way to save DME.

Threetall 11-12-2012 09:58 PM

So I just brewed the batch, and efficiency was a lot higher then expected so I got a higher OG (1.073 instead of 1.065). I pitched the yeast, I hope I'm not screwed.

Golddiggie 11-12-2012 11:32 PM


Originally Posted by Threetall (Post 4583061)
So I just brewed the batch, and efficiency was a lot higher then expected so I got a higher OG (1.073 instead of 1.065). I pitched the yeast, I hope I'm not screwed.

Probably not screwed, but be sure to give the batch enough time to do all it can to become great. Pull a taste sample before you move it, even after it's hit a confirmed FG.

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