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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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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417 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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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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249 views

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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116 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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Overflowing yeast starter

I made a yeast starter last night with 1500 ml of water, 150 g DME and a Wyeast 1056 smack pack. After boiling, total volume was just under 1500 ml. I put it in a 2 liter erlenmeyer flask on a stir ...
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Erlenmeyer flask rinsed in StarSan

For the first time I'm making a starter in my Erlenmeyer flask. I soaked, emptied, and drained the flask pretty good save the foam that is normal. The funnel, bung and blowoff tube were also soaked. ...
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59 views

Can we use monoammonium phospate (MAP) as yeast nutrient for wine making?

Wine making is not common in my country so it's difficult to buy wine ingredient especially Diammonium Phosphate (DAP) as yeast nutrient. After look in local shop, there's a shop selling Monoammonium ...
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49 views

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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219 views

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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759 views

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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494 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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Not seeing fermentation on lager's primary fermentation

We're currently trying to get a lager to go through its primary fermentation but after 2 days, we haven't seen any action or changes on the surface of the wort. The wort had a full packet of yeast ...
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35 views

keeping cropped yeast in good health

If I needed to keep the harvested yeast in the fridge for longer than I needed, could I just make a new starter and leave it to ferment out and then put it in the fridge again. Would this help to keep ...
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279 views

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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432 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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932 views

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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187 views

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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252 views

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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570 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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53 views

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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90 views

Pitching a Yeast Starter Before High Krausen

I made my first two lagers last weekend and will make two more this weekend. After the boil, I chilled the wort to 75*F/24*C, oxygenated it and put the carboy in my chest freezer so it could get down ...
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44 views

Should I decant my lager starter

I made a starter for this lager we're brewing. As usual, I started it three days early, fermented at 70F and put it in the fridge after the krausen died down. I'm sitting here on brew day thinking ...
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Improvements for Geordie Winter Warmer

I've just started a single can Geordie Winter Warmer kit and having read some negative reviews about this kit turning out "weak" and "watery" and like "beer flavoured soda water" I'm naturally having ...
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52 views

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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39 views

What is the specific role of yeast in wine making? [closed]

I'm a senior student, experimenting on alcohol concentration of wine using different variables. My variables are white wine yeast and brewing yeast and whilst I know the main role, I would like to ...
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50 views

Pure Carapils starter wort?

I was reading White Labs' Homebrew Starter Tips page, and the following got me thinking: Keeping the Original Gravity low is important because you want to keep the yeast in its growth phase, ...
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291 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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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 ...