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Old 02-25-2013, 01:55 AM   #1
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Default Yeast starter question

I plan on making a yeast starter for my next batch (Irish Red Ale -5Gal) but have a question or two...

1. Since the Wyeast smack pack has a nutrient pack inside should I still use the yeast nutrient that came with my yeast starter kit (from Midwest)?

2. NB recommends 1.5L water & 1 cup DME / Midwest recommends 1L water & 1 cup DME, so which is right?

I understand there are different measurements for different intended gravities but I guess I'm just looking for an all around 'best practice' here.

Thanks!

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Old 02-25-2013, 01:58 AM   #2
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Yes use the nutrient. Probably fermaid. For a general starter 1.5 liters to 1 cup DME will work. For a gravity specific starter check yeastcalc.com.

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Old 02-25-2013, 01:59 AM   #3
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i do 1 gram of DME for every 10 mL of starter. not sure how that corresponds to liters per cup of DME.

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Old 02-25-2013, 02:01 AM   #4
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I don't think it would hurt adding it. I always like to add my nutrients to the wort instead of the starter.

You want to keep your starter around 1.030 to 1.040.

I go by a 10 to 1 general rule. 10 milliliters to 1 gram. So for a 2 liter starter you would add water to 200 grams of DME until you reach the 2 liter mark. For 1 liter you would use 100 grams of DME.

Use mrmalty's yeast calculator to figure out the best size starter and use the 10 to 1 rule.

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Old 02-25-2013, 02:19 AM   #5
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Quote:
Originally Posted by h22lude View Post
I go by a 10 to 1 general rule. 10 milliliters to 1 gram. So for a 2 liter starter you would add water to 200 grams of DME until you reach the 2 liter mark. For 1 liter you would use 100 grams of DME.

Use mrmalty's yeast calculator to figure out the best size starter and use the 10 to 1 rule.
I should've mentioned I don't yet have a kitchen scale and need to use measurements in volume vice weight.
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Old 02-25-2013, 08:24 PM   #6
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Oh, and a follow up question if I may...

When using a stir plate (I love new toys) do you leave the starter on the stir plate for a particular defined period (ie; just until the fermenation gets going or until you're ready to pitch or ??)

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Old 02-25-2013, 08:27 PM   #7
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Quote:
When using a stir plate (I love new toys) do you leave the starter on the stir plate for a particular defined period (ie; just until the fermenation gets going or until you're ready to pitch or ??)
You leave the starter on the stir plate until the fermentation completes, this keeps the yeast suspended. After fermentation completes you're just beating up your yeast.
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Old 02-25-2013, 08:33 PM   #8
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Quote:
Originally Posted by boondocksaint View Post
I should've mentioned I don't yet have a kitchen scale and need to use measurements in volume vice weight.
I do 1/2 cup DME -> 2 cups water, and adjust from there.
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Old 02-25-2013, 08:38 PM   #9
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Oh, and a follow up question if I may...

When using a stir plate (I love new toys) do you leave the starter on the stir plate for a particular defined period (ie; just until the fermenation gets going or until you're ready to pitch or ??)
You need to do a minimum of 12 - 18 hrs. So you could do it the morning before your brew day, then when ready to pitch it, take it off and dump it in.

UNLESS, you want to put it in the fridge, and decant it.
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Old 02-25-2013, 11:37 PM   #10
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I just used my stir plate for the first time. I stirred for about 36 hours, then refrigerated for two days. In brew day I pulled from the fridge and decanted all but about a 1/2 inch. Then swirled occasionally for an hour or so while I prepared my wort. I feel that adding all of the flask dillutes your brew. If you are using a 2l starter, that is a half gallon of piss beer you dumped in. Anyhow, I had the shortest lag time ever, just about 8 hours. Blew off my blow off tube. Don't use the 1/2 inch tubing over the airlock method, mine clogged. Fermentation was crazy rapid. Today is just a few hours short of 48 hours and what krausen I have left is falling to the bottom already.

Anyhow enough rambling, just wanted to share my crazy, stir plate starter experience. GOOD FUN!

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