Yeast starters are small worts of 1L or more that contain no hops. The primary purpose is to awaken and grown the yeast supplied in a vial or smack-pack. Typical starter wort is around or under 1.040 in gravity.

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How to know how much starter to make from harvested yeast?

There are plenty of calculators that tell you how much starter to make for a specific amount of starting yeast and for a specific gravity of the wort. On packages/vials of yeast it tells you the ...
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What is the proper way to supplement a yeast starter with oxygen via an aeration stone?

I have two yeast starters going on my two homemade stir plates. The stir bar or the stir plate for one of them is malfunctioning and I can not increase the speed enough to get a vortex going. It is ...
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Do I need to make a yeast starter

I have made around 5 homebrews and have heard of yeast starters but have never used one. I have always used smack packs or dry yeast and just pitched that directly into the fermentation. They have all ...
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363 views

What is a 1.070 OG Yeast Starter Going to Do to Me?

As I was boiling my yeast starter, I measured it in a hydrometer, and it read 1.040. I knew the temperature would distort it upwards, but I didn't know by how much... I've already pitched, and out of ...
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Purposely underpitching

So I am planning a roggenbier, partially because I want to try one, but largely to grow up a cake to make 15 gallons of weizenbock. Hefe's are ok in my mind, but my palette basically just wants ...
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Is a yeast-starter without temperature control worse than no yeast-starter at all?

EDIT: Crap, it appears I mislead myself. Northern Brewer includes a temperature range of the particular Wyeast you are using, and I assumed this temperature range factored out off-flavors. I read on ...
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How long can a yeast starter stay on a stir plate before pitching?

Two days ago (on Wednesday night) I made a yeast starter on my stir plate. I purchased a thermometer probe that I intend on modifying a fermentation bucket with, which I thought it would arrive today (...
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316 views

Why Wouldn't Chilling a Yeast Starter Cold Crash or Inactivate the Yeast? [duplicate]

We boil DME and water to make a solution with an OG of 1.040, pitch the yeast and place it on a stir plate for a couple of days to make our yeast starters. After this, it is commonly suggested to ...
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566 views

Yeast Starter Vortex Size

I've read online that the size of the vortex in a yeast starter does not matter. Why is this true? When I was experimenting with water yesterday, I created a monster vortex (very cool) and could see ...
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764 views

Total Volume of Yeast Starter in Regards to Evaporation from Boiling Wort

Today I did my first yeast starter. I purchased the 2000mL flask and DME from northernbrewer, and it came with instructions for doing both 1000mL and 2000mL batches. It suggests 1000mL for 5 gallons ...
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685 views

Old malt extract (liquid) for a yeast starter

So by old I'm talking maybe ten years! I was cleaning and found quite a bit of LME gifted to me with all my original homebrew equipment. I was mid-swing into the trash can when I wondered if maybe I ...
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Why an erlynmeyer flask?

Why is the erlynmeyer style flask the automatic go to for yeast starters? I know people use other containers besides flasks, and some flasks dont have flat bottoms but is there something special about ...
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What is the 'cake'?

I've been looking into ways to restart unfinished fermentation and some sources talk about using a Cake, or yeast cake from previous brews. They also talk about pitching on the cake. I've searched to ...
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519 views

Making a starter without DME?

Planning to start to use liquid yeasts and will need to do some starters. It is hard to get hold of DME over here (I can get some hopped LME, though). I was thinking on doing a starter from grains, ...
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433 views

Rescuing a weak lager fermentation

I'm currently fermenting a spiced dark lager with an original gravity of 1.064. I began fermentation 2 weeks ago today with a White Labs 830 yeast that I made a starter with. The yeast was a bit old, ...
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466 views

Pitching yeast the next day?

If I wake up and decide to brew an impromptu batch, can I begin a starter at the same time and just pitch the next day? Seems comparable to no-chill brewing as far as contamination concerns, though ...
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What is the minimum amount of time required for a yeast starter?

It is generally advised to leave a yeast starter for at least 24 hours to get optimal yeast growth. If I only have a few hours, is there any point making a starter from my liquid yeast pack? Is ...
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544 views

How do you harvest yeast from a commercial beer?

I've done yeast starters and I've re-used yeast beds but I have never previously harvested or captured yeast from a commercial beer. I tried it last night, inventing my process as I went but I'm ...
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942 views

Use of servomyces in a yeast starter

1 servomyces capsule is the correct dose for 5 galons of wort. If I want to add servomyces to my 1.5 litre yeast starter should i break open the capsule and use only part of it? or is it safe to add ...
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129 views

Should the starter volume be included in the overall batch size?

I'm giving my first starter a go: a 2.4L starter for a 21L batch overall. Since this looks like it will account for over 11% of the total volume, should I recalc for a 23L / 19L batch? Or should I ...
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37 views

Reusing vs using new yeast [duplicate]

Possible Duplicate: How many times can yeast be reused? I have read in a couple of places that you should only reuse yeast a couple of times - most say up to 5 times because you would get an ...
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2answers
3k views

Yeast Starter with Dry Yeast (S-04)

I know the common wisdom is you shouldn't do this, but I am brewing two mid-to-high gravity beers on Saturday (1.065 and 1.072), and only have one packet. I am now chilling a 2L starter that I was ...
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539 views

Making a starter when reusing yeast

I want to reuse the washed yeast from a previous batch of beer in my next batch. Should I make a starter for it? If so, how much of it? I looked at MrMalty, and it seems to me they tell me not to make ...
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What is the purpose of stepping up a starter

Very simply, what is the difference in pitching 100 billion cells into a 1L starter and into a 2, 3, 4L starter of, say 1.040 OG? I understand the logic with a 5.5 gallon batch of beer: you want ...
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Always making a starter vs. following package description

I have noticed that the smackpacks say on the package that the package is meant for a 5 gal. batch and that you should pour the pack directly into the wort. On the otherhand - nearly everyone tells ...
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807 views

Top Cropping Cell Counts

TLDR: I have no idea how much top-cropped yeast to pitch into a ~1.055 OG Octoberfest (5.5 gallons) I am planning on making an Octoberfest (late I know) on August 18th. Instead of making a boring ...
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How much yeast nutrient does starter wort need?

I am going to make a batch of wort to be stored in 1 quart jars to make starters from. I'd like to add the yeast nutrient (diammonium phosphate and yeast hulls) at this time so I don't have to mix it ...
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161 views

Should I factor out sugar-to-alcohol conversion in stage 2 of a three-wort batch?

I am planning to make a tripel with OG near 1.085. I need to make a strong starter before subjecting yeast to that kind of gravity. I have read that 1.040 is a good gravity for making a starter. So I ...
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549 views

Yeast Starter blew out!

So I made a 2L starter with 2 Wyeast 1056 smack packs, yeast nutrient, a shot of O2 at the beginning and intermittent shaking. Last night it was going strong and this morning it had a nice high ...
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2answers
516 views

Yeast Starter for a “Big Beer”

So I'm doing my first "Big Beer" this weekend. It's an Imperial IPA with an estimated OG of 1.096. I'm using Wyeast 1056 with yeast nutrient, a shot of pure O2 and intermittent shaking. Using Mr.Malty'...
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1answer
217 views

Salty Starter. From Gypsum?

I'm using gypsum for the first time in an IPA I'm brewing in few days. I made a starter today and thought.... since it's a hopped started, why not add a pinch of gypsum. I used PDME and yeast nutrient ...
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441 views

Old DME and Yeast Starters

I just made a yeast starter for my upcoming brew and I realize the bag I was using for DME was pushing a year old and hasn't been through prime storing conditions. It got mixed in with my other stuff ...
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397 views

Do I need a yeast starter for a 1.040 gravity wort?

I'm brewing on Sunday (today is Friday), and I neglected to get my yeast (WY1056) until just this afternoon. I could make a starter, but I don't know if it would reach "high krausen" in time for ...
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How do I know when a starter has hit 'high krausen', when using a stir plate

I've been advised to pitch an alcohol tolerant yeast "at high krausen" into a barley wine where the fermentation has slowed (OG 1.101, now 1.035). But if I've got it on a stir plate, how do I know ...
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What is a stir plate?

What is the function of a stir plate when making a yeast starter? Does it drastically improve the starter process?
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Yeast Starter Stopper & Sanitization

I'm going to be making my first yeast starter, for a higher gravity beer. While reading starter guides, and watching videos, I've noticed that there are several different techniques and opinions for ...
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Starter Chill, Decant, Pitch - Why no problem with Temp Shock?

So an often repeated mantra for starters is to (1) make a starter, (2) let it ferment out completely, (3) chill the starter in the fridge for a day or two, then (4) pour/decant off the oxidized "beer" ...
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How to estimate yeast starter viability when using stir plate?

I have just started a transition to making yeast starters and also using a homemade stir plate and am curious how to estimate the viability of the yeast when using this method. Normally, there are ...
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How long can a yeast starter survive in the fridge?

I've made a 2L yeast starter (Wyeast 2633 Octoberfest) and placed in the fridge this morning. My original goal was to brew tonight but I may not be able to. Will the yeast colony still be good for a ...
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170 views

Can I do a high temperature starter?

I know if you are adding the yeast directly to the wort you want to keep the temperature similar to that of your eventual fermentation temp to minimize shock to the yeast. However, I plan to make a ...
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Can you use dextrose in a yeast starter?

If you don't have ay DME on hand is it ok to use dextrose as the sugar in a yeast starter?
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are sub-litre starters viable?

So I was having a discussion about starters with someone, after reading NB's Yeast Pitching Rates document. In which, I read that, with a stir plate, and considering a two stage propogation, I could ...
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Yeast Starter Steps

I want to make a yeast starter for a lager. I even went out and got a 3000 ml Erlenmyer Flask. According to mrmalty.com's calculator I need 506 Billion cells. With the two vials of White Labs yeast ...
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2answers
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How do I make a Yeast Starter?

I know I should be using a Yeast Starter so that I can make sure I have enough, healthy yeast, but I've never managed to go around to it. How would I start a yeast starter? How long before brewday ...
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3k views

Should I always use a starter?

I like using a starter because it seems like it cuts down on the fermentation time, but do I really need to do it for beers that are under 1.070 OG?
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Should a starter be hopped?

Should I add hops to my starter recipe? I just started using starters, and I haven't been hopping them at all. I didn't even think of adding hops until I read some of the answers on this question. ...
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What is the proper method of pitching a starter?

What's the proper method of pitching a starter? Do I just pour the whole thing in or do I need to "harvest" a certain portion of it? I just started using starters (.25-.5 Gallons water + 2-4 cups ...