Starter required for 1 gallon batch?

Discussion in 'General Brewing Discussions' started by Graemeo, May 2, 2019.

  1. Graemeo

    Graemeo New Member

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    Hi all,

    First time poster here!

    I'm hoping you can give me some advice on a 1 gallon imperial stout I am brewing. The anticipated OG is about 1.102 and I am using WLP013. Using the Brewer's Friend calculator based on the manufacture date of the yeast I am about 15 billion cells off the target pitch rate. It would only take a very small starter to achieve the target pitch rate but would this be overkill? I was hoping to brew tomorrow and won't have time to make a starter in time so was wondering if I could get away with pitching straight in?

    Thanks for your help!
    Graeme
     
  2. Mase

    Mase Well-Known Member

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    How many cells are required (by the calculator)? And are you under or over the target amount?

    You can be a little under or over the calculator, but with such a small batch and a high OG, you might want to be a little over rather than under.
     
  3. Graemeo

    Graemeo New Member

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    Should have specified that, sorry! I need 73 billion cells and based on the yeast manufacture date I have 55 billion cells
     
  4. Mase

    Mase Well-Known Member

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    If it were me, I’d spin up a starter for that. ;)
     
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  5. Graemeo

    Graemeo New Member

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    I guess I'll need to push this out another week and make one!
     
  6. HighVoltageMan!

    HighVoltageMan! Well-Known Member

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    I agree. According to the numbers you gave, your pitch rate is .75 billion/degree plato/mL. In a big beer like that it would be good to be at 1-1.25 pitch rate. You would need a .4 liter starter to get up there and then decant prior to pitching to keep the starter wort from diluting the Imperial Stout. Remember these beers need a lot head room and oxygen, shake the p%!$ out of it or aerate with pure oxygen when you pitch. Good luck!
     
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  7. Graemeo

    Graemeo New Member

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    Thanks for your input :) Blow off tube will be implemented from the get go!
     
  8. J A

    J A Well-Known Member

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    If it were me, I'd make a gallon batch of an Ordinary Bitter which would easily be done in a week and be dropping out so that you could rack off a little beer to be drinking while you're waiting for your stout to be ready.
    If you did a gallon of 1.040 beer you'd end up with about half again the cell count you need for a high-gravity ale. That means you could use maybe 3/4 of your resulting slurry, have a very nice pitch for your stout and have another healthy pitch for another starter or even a small batch of lower-gravity beer.
    If you decide to do a small starter, it should finish very quickly, probably overnight, even if it's just shaken and not spun on a plate.
     
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  9. KC

    KC Active Member

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    Dilution is a problem with starters on small batches. Instead, you can pitch into half or 2/3 of the wort and add the rest when it krausens. The raw wort can store in a mason jar in the meantime.
     

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