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Old 08-20-2009, 09:05 PM   #1
ericmunley
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Mar 2009
Posts: 21


I am planning on brewing my second homebrew tomorrow, an Imperial Stout. The kit from Northern Brewer came with Wyeast #1728 Scottish Ale Yeast. I have activated/slapped the yeast already and it has ballooned according to plan.

Will pitching the yeast "slap pack" as is be enough or should I make a yeast starter. The Imperial Stout is supposed to be pretty strong, so I want to have enough yeast cells.

Thanks for your help.



 
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Old 08-20-2009, 09:13 PM   #2
davesrose
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Mar 2008
Atlanta, GA
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No, one slap pack won't ideal...especially for a RIS. What is your estimated gravity? This calculator can be helpful:

Mr Malty Pitching Rate Calculator

If you pitch with one pack, you'll be underpitching....which can lead to greater lag times, slower ferments, and for your final gravity to not be as low. However, underpitching isn't the end of the world.


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Old 08-20-2009, 10:19 PM   #3
ericmunley
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Mar 2009
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OG is 1086

 
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Old 08-20-2009, 10:22 PM   #4
ericmunley
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Mar 2009
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So should I purchase another Wyeast liquid slap pack or make a starter?

 
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Old 08-20-2009, 10:27 PM   #5
Arkador
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Apr 2009
Fort Worth, TX
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make a 1L starter
1l water, 100g DME a day before pitching

a starter costs less than $2 to make, and another pack costs $5-7

 
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Old 03-19-2013, 06:18 PM   #6
retief
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Mar 2013
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Quote:
Originally Posted by Arkador View Post
make a 1L starter
1l water, 100g DME a day before pitching

a starter costs less than $2 to make, and another pack costs $5-7
So a 1L starter for a 5 gallon batch of imperial stout is going to be enough?
1L water
1 cip DME
1/2 tsp nutrient

Is this going to do it?

 
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Old 03-19-2013, 06:23 PM   #7
freisste
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Sep 2012
Ann Arbor, Michigan
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I would do 100g of DME instead of 1 cup, but I am not a fan of volumetric measurements. (In fact, I put a water cup on my scale and fill to 1000g instead of measuring a liter.)



 
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