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Old 10-11-2006, 08:48 PM   #11
TheJadedDog's Avatar
Aug 2006
People's Republic of Cambridge
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the best instructions I've seen on making a starter are here Palmer really walks you through the whole process. The Wyeast site also has a short description but it's not as comprehensive.
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Old 10-11-2006, 09:02 PM   #12
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Mar 2006
East Peoria, IL
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Originally Posted by rohanski
How long do I need to let this sit befory using it?
Wait until it hits high krauesen.
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Old 10-11-2006, 09:32 PM   #13
Oct 2006
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I usually make a starter the morning of brew day.

I boil 1 cup DME with 1 quart of water for 5 minutes, add it to a half gallon clear jug and affix an airlock.

In the meantime, I break the smack pack, let it swell for an hour or two.

I then add the yeast to the jug and begin brewing.

By the time I am done brewing, 3 or so hours later, the airlock on the starter jug is usually bubbling every 30 seconds or so.

When the wort is cool and ready for the yeast, I dump it in through a funnel into the carboy and affix an airlock. The batch is usually bubbling before I go to sleep.

Next morning? Tons of bubbles.

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Old 10-12-2006, 03:20 AM   #14
Brewing Clamper
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Apr 2006
Union City, CA
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Originally Posted by t1master
48 hours is best if you can plan that far ahead.

reusing the entire yeast cake gets you rocking almost as you're racking the wort atop it!!!
Do you clean the yeast before adding the wort or do you pour right over the trub?

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Old 10-12-2006, 04:09 AM   #15
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Oct 2006
San Diego
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It is also really important that the wort is 65-75, if you take Yeast that is room temp, dry, or out of the refrigerator and toss them into your wart that is 75-90 they go in to shock.

One thing also about aerating, the more O2 there is in the system the longer the yeast will convert sugar completely to CO2 and H2O, they need to be in an Anaerobic state due to the lack of O2 to produce EtOH (ethanol) and CO2. So if you oxygenate the system the yeast will be more active but produce less EtOH from the available sugar, but more bubbles.

I find it is best to have as little O2 in the system before pitching the yeast, but to try get the yeast in a linear growth rate at the time of pitching...basically activating the yeast 3-4hr before pitching (with dry Yeast re-Hydrate for 10-15min before adding to sugar solution), if you do this the yeast will be dividing at a rate of one division per 24hr and do this for 2-4 days until the system is saturated.

Some times the yeast are not as healthy from drying or whatever, they just take a while to get to the numbers necessary for a robust fermentation, but they will get there if you give them a chance.

P.S. you need 50million yeast cells/ 1ml of wort...

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Old 10-12-2006, 02:09 PM   #16
Aug 2006
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You do not have to clean yeast the first few times that you use it. I save the yeast cakes in Grolsch bottles and I just shake it up and pour it into a container with 1 pint water with 1/2 cup DME boiled into it just to get it active again( usually 24 hrs before brewing).

I only reuse yeast 3 times before I discard it and I have never had any bad tastes from using unwashed yeast. But I use hop sacks for my hops so the trub is not as bad as it could be. I would wash my yeast if it had hops in it. I fear that mixing the hops from the trub and the new batch would not be the best thing to do.

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