Homebrewers Association | AHA Forum

General Category => Yeast and Fermentation => Topic started by: andrew000141 on May 19, 2012, 02:02:24 AM

Title: Starters?
Post by: andrew000141 on May 19, 2012, 02:02:24 AM
So I know I'm a fool for never doing this but I've never made a starter. Basically I just want to know how to make one, do you hop it? Do you just mix DME with water? And while I have a thread up I gotta ask, what is a flameout? >.<
Title: Re: Starters?
Post by: euge on May 19, 2012, 03:05:48 AM
Flameout is when you turn off the heat to the boil kettle. So sometimes people will say "at flameout" for a hop addition or whatnot.

You build a starter by pitching a quantity of yeast into a sterile low-gravity wort. This is to encourage multiplication of yeast primarily, and to ensure good yeast health before pitching into the fermenter. That's when wort becomes beer.

No need to hop the starter IMO.
Title: Re: Starters?
Post by: morticaixavier on May 19, 2012, 04:59:08 AM
Yup, euge has go tit more or less, I do 100 grams in 1 liter of water. boil for 10 minutes or so, chill to 70ish and pitch. I use a half gallon mason jar unless I am doing more than 1.5 liters, then I pull out the gallon jug. Either way I just cover the opening with sanitized foil.  I don't have a stir plate so I just make a point of swirling every time I walk by it. When using the mason jar I can screw down the ring over the foil and really shake it up good a couple times a day.
Title: Re: Starters?
Post by: pyrite on May 19, 2012, 05:29:22 AM
Don't forget, you could also add yeast nutrients to the starter. 
Title: Re: Starters?
Post by: dzlater on May 19, 2012, 10:18:38 AM
http://wiki.homebrewersassociation.org/YeastStarter (http://wiki.homebrewersassociation.org/YeastStarter)
Title: Re: Starters?
Post by: weithman5 on May 19, 2012, 01:26:31 PM
Yup, euge has go tit more or less,
giggle giggle. 8)

i do about the same thing about 3 onces dme in 1 quart water after boiling and allowing to cool.  just leave lid on mason jar loose (just the flat piece)

making a starter now. doing something i never have done (i don't have a stir plate and usually swirl) but now every hour or so i have been using the aquarium pump to agitate and add air.  see what happens
Title: Re: Starters?
Post by: tom on May 19, 2012, 03:39:58 PM
For big beers or lagers you'll want to make bigger starters.  Jamil has a yeast starter calculator at his website www.mrmalty.com
Title: Re: Starters?
Post by: petey on May 21, 2012, 12:11:25 AM
I used jamil's yeast starter page for  a while but later found www.yeastcalc.com and it really helped me with stepping up to a larger starter for larger batch sizes.  Also it will tell you how much dry extract for the starter size you desire
Title: Re: Starters?
Post by: majorvices on May 21, 2012, 03:38:46 AM
I used jamil's yeast starter page for  a while but later found www.yeastcalc.com and it really helped me with stepping up to a larger starter for larger batch sizes.  Also it will tell you how much dry extract for the starter size you desire

Nice! Never saw that but looks great - thanks!
Title: Re: Starters?
Post by: summy on May 21, 2012, 10:43:47 AM
I use the pressure cooker to make my starters well in advance.  I can usually make 5 quart-sized jars at a time.  They keep fairly indefinitely.  I put in 3.2 ounces DME, a pinch of yeast nutrient and fill to the neck with water.  Shake well and then cook at 15psi for 15 minutes.  Thanks to Drew for the info.

Sent from my SCH-I510 using Tapatalk 2
Title: Re: Starters?
Post by: davidgzach on May 21, 2012, 11:52:12 AM
I used jamil's yeast starter page for  a while but later found www.yeastcalc.com and it really helped me with stepping up to a larger starter for larger batch sizes.  Also it will tell you how much dry extract for the starter size you desire

Nice post, thanks!

+1 to all the advice above.  When you want to make lagers, starters are paramount to your success.

Dave
Title: Re: Starters?
Post by: andrew000141 on May 21, 2012, 12:48:23 PM
is yeast nutrient just an item i could buy at my LHBS? Is that the actual name of the product?
Title: Re: Starters?
Post by: ccfoo242 on May 21, 2012, 01:05:03 PM
is yeast nutrient just an item i could buy at my LHBS? Is that the actual name of the product?

Its just called yeast nutrient at mine. I think there's some brand names, though.

Reminds me of the movie Repo Man where food was called "Food" and drink was called "Drink".
Title: Re: Starters?
Post by: majorvices on May 21, 2012, 02:00:08 PM
You will want to get a yeast nutrient hat is fortified with zinc. The white labs and wyeast nutrients are both good, i wouldnt waste my money of the servo from White Labs though, just the regular nutrient. You also want to aerate the starter well, and if you can,mourns the starter fermentation.
Title: Re: Starters?
Post by: Pinski on May 21, 2012, 02:20:21 PM
and if you can,mourns the starter fermentation.
come again?
Title: Re: Starters?
Post by: morticaixavier on May 21, 2012, 02:33:30 PM
and if you can,mourns the starter fermentation.
come again?

When your hat is fortified with zinc it's important to mourn the starter that's all. perfectly clear to me  ;D
Title: Re: Starters?
Post by: Pinski on May 21, 2012, 03:36:04 PM
and if you can,mourns the starter fermentation.
come again?

When your hat is fortified with zinc it's important to mourn the starter that's all. perfectly clear to me  ;D
ah yes, now I get it!  ???
Title: Re: Starters?
Post by: majorvices on May 21, 2012, 04:10:53 PM
and if you can,mourns the starter fermentation.
come again?

Damn, that was some crazy auto correct!  :o I meant to say if possible, aerate the starter during fermentation.
Title: Re: Starters?
Post by: bluesman on May 21, 2012, 04:32:33 PM
and if you can,mourns the starter fermentation.
come again?

Damn, that was some crazy auto correct!  :o I meant to say if possible, aerate the starter during fermentation.

+1

Use of a stir plate is a real good aeration technique for yeast starters.

http://www.homebrewing.org/The-Stirstarter-Yeast-Stir-Plate-_p_1306.html
Title: Re: Starters?
Post by: FirstStateBrewer on May 21, 2012, 06:35:41 PM
bluesman, Friday night we were talking about a yeast starter for the maibock I brewed yesterday.  We decided the yeast starter I had prepared was too small and there was not enough time left to step it up to the correct size.  You explained a lot to me at the time, but since I was engaged in sampling homebrew, I have retained very little!   ;)

So my question is, what's the correct size yeast starter for a 5-gallon maibock?  What's the best way to make the starter and how many days before brew-day should I begin?
Title: Re: Starters?
Post by: bluesman on May 21, 2012, 06:48:30 PM
A five gallon Maibock at 1.068 requires roughly 469 billion cells. Therefore a 9 Liter starter using 1 vial will suffice. I recommend making 9L of starter wort at a gravity of 1.030. (27oz DME). Boil the starter wort with 1/2 tsp yeast nutrient for 10-15min then chill down into the 60's, aerate the wort and pitch one vial of Bock yeast. Ferment in the 60's to terminal gravity and crash cool. On brew day decant the beer and pitch the slurry into your well aerated/oxygenated Maibock wort at lager pitching temps (45-50F).
Title: Re: Starters?
Post by: FirstStateBrewer on May 21, 2012, 06:55:08 PM
A five gallon Maibock at 1.068 requires roughly 469 billion cells. Therefore a 9 Liter starter using 1 vial will suffice. I recommend making 9L of starter wort at a gravity of 1.030. (27oz DME). Boil the starter wort with 1/2 tsp yeast nutrient for 10-15min then chill down into the 60's, aerate the wort and pitch one vial of Bock yeast. Ferment in the 60's to terminal gravity and crash cool. On brew day decant the beer and pitch the slurry into your well aerated/oxygenated Maibock wort at lager pitching temps (45-50F).
Thanks!  Could I put the 9L starter in a 5-gallon glass carboy?
Title: Starters?
Post by: bluesman on May 21, 2012, 07:06:20 PM
Yes. 
Title: Re: Starters?
Post by: FirstStateBrewer on May 21, 2012, 07:13:06 PM
Yes.
Great!  And how many days do you think it will take for the starter to be ready to pitch?
Title: Starters?
Post by: bluesman on May 21, 2012, 07:19:28 PM
Depends on the condition of the yeast, yeast strain and the fermentation temp, but I would expect it to take about 5-7 days to ferment out at 60F.
Title: Re: Starters?
Post by: andyi on May 22, 2012, 04:42:52 PM

fun fact.

I to was using 100gr DME per litre until I checked the gravity one day.  At the end of 15min boil I had around 800ml of starter wort at 1.056 SG.  I had never taken the boil into account.  I now  add in the 15min boil off volume (200ml) to my staters.  I use 100 grams of DME for a 1200ml starter @ 15min and end up with 1000ml vol at ~1.037 SG.