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03-17-2009, 01:07 AM
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#1
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Senior Member
Join Date: Mar 2009
Location: NC
Posts: 467
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What are starters and yeast washing?
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I keep seeing these terms come up but what exactly are they?
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03-17-2009, 01:27 AM
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#2
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Senior Member
Join Date: Sep 2006
Location: Sacramento, CA
Posts: 323
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03-17-2009, 01:36 AM
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#3
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naturally selected
Join Date: Jan 2009
Location: Attleboro, MA
Posts: 2,503
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regarding the yeast washing wiki - what does it mean by "Try not to remove any of the part that separated"? Is this the liquid portion that sits on top of the settled yeast?
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03-17-2009, 01:47 AM
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#4
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Grouchy Old Fart
Join Date: Feb 2006
Location: Eldorado, WI
Posts: 7,545
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Quote:
Originally Posted by JLem
regarding the yeast washing wiki - what does it mean by "Try not to remove any of the part that separated"? Is this the liquid portion that sits on top of the settled yeast?
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No. At this point the yeast is still in suspension and the part that is settling out is trub. So you are pouring off the suspended yeast and leaving the trub behind, thus getting only yeast into the new jar.
__________________
I like to squeeze the nickle until the buffalo craps-mt rob
"Why don't we get drunk and screw?" Jimmy Buffett
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03-17-2009, 01:59 AM
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#5
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Senior Member
Join Date: Mar 2009
Location: NC
Posts: 467
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Aren't most packs of yeast that are available from most local brewstores ready to use? So far we have used dry packets and just used a wyeast smack pack. What type of yeast would need a starter?
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03-17-2009, 02:19 AM
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#6
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Senior Member
Join Date: Feb 2009
Location: Alexandria, VA, USA
Posts: 2,059
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Quote:
Originally Posted by dmbnpj
Aren't most packs of yeast that are available from most local brewstores ready to use? So far we have used dry packets and just used a wyeast smack pack. What type of yeast would need a starter?
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Mr Malty Pitching Rate Calculator (make sure you pick "dry" or "liquid") will tell
Basically, every beer needs a starter with liquid yeast. Anything with an OG over about 1.060-1.070 needs it with dry yeast.
If you don't make one under those conditions, you'll be underpitching the needed cell count. That will probably still have a pretty decent end result, but stressed yeast and yeast that's undergoing a lot of reproduction probably won't give you the best possible flavor profile and _might_ result in lower attenuation (hence sweeter, lower ABV beer).
So making a starter to get the right pitching count is important to making a really good beer.
Certain styles of beer rely on either underpitching or overpitching those levels intentionally, but unless you know your beer it's a good guide.
__________________
On deck: Little Bo Pils, Bretta Off Dead (Brett pale)
Secondary: Oude Bruin, Red Sky at Morning (Sour brown ale)
On tap: Saison Duphunk (sour), Amarillo Slim (IPA), Earl White (ginger/bergamot wit)
Bottled: Number 8 (Belgian Strong Dark Ale), Eternale (Barleywine), Ancho Villa (Ancho/pasilla/chocolate/cinnamon RIS), Oak smoked porter (1/2 maple bourbon oaked, 1/2 apple brandy oaked)
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03-17-2009, 02:24 AM
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#7
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Senior Member
Join Date: Mar 2009
Location: NC
Posts: 467
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Why go with a liquid yeast if you can achieve the same product with a dry yeast that you can just pitch?
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03-17-2009, 03:08 AM
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#8
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Senior Member
Join Date: Sep 2008
Location: Lafayette, CO
Posts: 484
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Quote:
Originally Posted by dmbnpj
Why go with a liquid yeast if you can achieve the same product with a dry yeast that you can just pitch?
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It is not quite the same end result. The different liquid yeasts available can contribute a lot to the final flavor of a brew, whereas most dry yeasts tend to be fairly neutral, and they give less flavor. You can still make mighty fine beer with dry yeast.
__________________
Kelpie Home Brewery, Lafayette Colorado
Primary: Creek Dog Stout x2, Two Dogs IPA, Grinning Kelpie Wheat
Secondary: empty :(
In Bottles: Belgian Wheat
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03-17-2009, 03:21 AM
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#9
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Senior Member
Join Date: Feb 2009
Location: Alexandria, VA, USA
Posts: 2,059
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Quote:
Originally Posted by dmbnpj
Why go with a liquid yeast if you can achieve the same product with a dry yeast that you can just pitch?
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If I'm making a beer that needs a pretty neutral yeast or one that's otherwise available dry, I'll go with a dry yeast. There's a reason US-05 is insanely popular.
A lot of what I make (see signature for current examples) relies on more obscure yeasts for the flavor, so I wind up using liquid yeast and making a starter for those.
__________________
On deck: Little Bo Pils, Bretta Off Dead (Brett pale)
Secondary: Oude Bruin, Red Sky at Morning (Sour brown ale)
On tap: Saison Duphunk (sour), Amarillo Slim (IPA), Earl White (ginger/bergamot wit)
Bottled: Number 8 (Belgian Strong Dark Ale), Eternale (Barleywine), Ancho Villa (Ancho/pasilla/chocolate/cinnamon RIS), Oak smoked porter (1/2 maple bourbon oaked, 1/2 apple brandy oaked)
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