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General Category => Yeast and Fermentation => Topic started by: insurgente on February 10, 2011, 12:06:44 AM

Title: Fermenting IPA with different yeast
Post by: insurgente on February 10, 2011, 12:06:44 AM
Hi All,
new to the forum and AHA.

I bought two different yeast strains by mistake and now have a question regarding my fermentation.
Yesterday I brewed an IPA with an OG of 1.078 and pitched a 5L starter of WLP051. It wont be enough to ferment it all the way.
I have another 2L flask starter with WLP001 going on right now.

My initial solution was to let 051 finish what it can ferment and once fermentation slows down pitch 001 (i'll refrigerate the 2L starter). Thing is I'll be gone until Sunday morning and wont be able to pitch until then.
Or, I can just throw in 001 today and let them simultaneously ferment and wish for the best, hoping as well that yeast from 051 don't get stressed because of the underpitching.

Ideally I'd like to wait and let 051 do its thing, then finish off with 001

much thanks for the feedback

Damian
Title: Re: Fermenting IPA with different yeast
Post by: jamminbrew on February 10, 2011, 12:34:57 AM
If you pitched a 5L starter, I would say that's more than enough.  Even if you under pitched, the yeast should still do the trick, it may just take longer.  Using a different strain of yeast might produce a different flavor beer, as yeast strains were cultivated for specific types of beer.  But we're homebrewers, and we have the luxury of experimentation.  Relax, don't worry, it will probably be fine.
Title: Re: Fermenting IPA with different yeast
Post by: tom on February 10, 2011, 01:20:16 AM
Welcome to the forum!

How large was the brew? A 5L starter would be enough to ferment 10 gallons 1.078.

Check out www.mrmalty.com for more info on starters and a yeast calculator.
Title: Re: Fermenting IPA with different yeast
Post by: insurgente on February 10, 2011, 01:49:55 AM
thanks!

i did check mr maltys calculator and it says I need 7.25L of starter (for 1.078)....   
the starter did go crazy... i even oxygenated before pitching

Title: Re: Fermenting IPA with different yeast
Post by: Hokerer on February 10, 2011, 02:39:03 AM
thanks!

i did check mr maltys calculator and it says I need 7.25L of starter (for 1.078)....   
the starter did go crazy... i even oxygenated before pitching


The yeast you've already pitched should be fine and have no problem finishing up that batch on its own.
Title: Re: Fermenting IPA with different yeast
Post by: maxieboy on February 10, 2011, 03:01:11 AM
thanks!

i did check mr maltys calculator and it says I need 7.25L of starter (for 1.078)....   
the starter did go crazy... i even oxygenated before pitching


The yeast you've already pitched should be fine and have no problem finishing up that batch on its own.

+1


Title: Re: Fermenting IPA with different yeast
Post by: hopfenundmalz on February 10, 2011, 02:19:51 PM
You can get by with a smaller starter is you have a stir plate, <2 Liters on mrmalty.  That is one thing that I now wouldn't do without.  Put it on your wish list.
Title: Re: Fermenting IPA with different yeast
Post by: maxieboy on February 10, 2011, 02:31:34 PM
You can get by with a smaller starter is you have a stir plate, <2 Liters on mrmalty.  That is one thing that I now wouldn't do without.  Put it on your wish list.

+ another 1!
Title: Re: Fermenting IPA with different yeast
Post by: blatz on February 10, 2011, 02:48:11 PM
You can get by with a smaller starter is you have a stir plate, <2 Liters on mrmalty.  That is one thing that I now wouldn't do without.  Put it on your wish list.

+1 - and if you're relatively handy, you can build one for ~$30-$40!