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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Proposed yeast starter

Within the next few days I'll be 'brewing' 100 litres of ale from slightly concentrated sterile wort. I've used these kits before with decent results, but this time I want to try a liquid yeast ...
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Saving and storing yeast straight from the packet

I'm currently brewing 1 gallon batches. Say I have a liquid yeast smack pack that's for a 5 gallon batch. What I'd like to do is use about 1/4 to 1/3 of the pack and store the rest for later brews. ...
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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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Yeast starter with YM-Medium under aerob conditions?

As far as I know the most common yeast starters are malt extracts which are sealed with an airlock. But the few times I worked with yeasts in the lab we used YM-Medium (Yeast extract-Malt extract) to ...
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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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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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What are the characteristics of baker yeast?

I am looking to brew some ginger beer and other simple stuff. I wonder what are the characteristics of baker yeast? Will they do for a cyder beer ? What are the disadvantages? In Europe we have ...
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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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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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Liquid yeast, do need to make a starter?

I'm making mini batches with IPAs(4-5 liters/ca 1,5 gallon), and with my three first brews I've used dry yeast. On my next mini batch I'll use liquid yeast(WLP005), do I need to make a starter or is ...
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May I Aerate AFTER Pouring Yeast into the Carboy?

I extract brew, and the kits I buy from NB tell me to add cold water to the wort to get a total of 5 gallons, and then aerate before adding the yeast. However, if I do this I will always have more ...
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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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Is a yeast starter required for this recipe

According to brewers-friend, I am short 139 billion yeast cells for a recipe I was estimating. I was planning on trying something along the lines of this recipe. My original idea was to re-hydrate a ...
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Shelf life of canned and unfermented wort?

I asked in a prior post about canning wort to have it handy for yeast farming. What would the shelf life be of canned, unfermented wort? Any special steps to extend shelf life, perhaps adding hops? ...
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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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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 ...