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Yeast identification problem Safale US-05 and S-04

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Bob F

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Sep 17, 2012, 4:34:18 PM9/17/12
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I'm making two batches of cider with two different yeasts. Unfortunately, after
starting the yeasts disolving in water, they got moved, and I don't know which
is which. One batch was sort of a tanish cream color, the other, closed to a
paper bag brown. Can anyone help me figure out which is which?

Safale
US-05
S-04


Tom Biasi

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Sep 17, 2012, 5:00:59 PM9/17/12
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In cider of unknown composition and just a slight color difference I
doubt if you or anyone could tell by sight. You may find someone that
can tell by taste and/or smell.
Good luck.
Tom

Bob F

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Sep 17, 2012, 5:06:45 PM9/17/12
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The color described was the yeast and foam after adding to water, before I put
it into the cider.


Bart Goddard

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Sep 17, 2012, 5:16:25 PM9/17/12
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"Bob F" <bobn...@gmail.com> wrote in news:k381ge$bno$1@dont-
email.me:

> Can anyone help me figure out which is which?

I went to Google images and searched for "safale s-04"
and then "safale us-05". Most pictures were of the
packages, but there were some useful pictures.
Some folks were washing yeast, and so had small
jars with cultures. There were a couple of petri
dish pics.

Overall, it seemed that s-04 was darker than us-05.

B.

--
Cheerfully resisting change since 1959.

Tom Biasi

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Sep 17, 2012, 5:23:50 PM9/17/12
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OK I see that Bart helped. You could call the dark one S04 but how
confident would you be. If there is a noticeable difference in taste or
smell maybe someone can help when it's done.

Bob F

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Sep 17, 2012, 5:37:47 PM9/17/12
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Bart Goddard wrote:
> "Bob F" <bobn...@gmail.com> wrote in news:k381ge$bno$1@dont-
> email.me:
>
>> Can anyone help me figure out which is which?
>
> I went to Google images and searched for "safale s-04"
> and then "safale us-05". Most pictures were of the
> packages, but there were some useful pictures.
> Some folks were washing yeast, and so had small
> jars with cultures. There were a couple of petri
> dish pics.
>
> Overall, it seemed that s-04 was darker than us-05.
>

Excellent idea for finding an answer. I think I have to agree with you. Thanks.

Other opinions would still be appreciated.


Scott

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Sep 18, 2012, 5:44:50 AM9/18/12
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I would ferment them both out. My experience with both has been that
the S-04 takes a LOT longer to drop out of suspension. The US-05
finishes up and drops to the bottom within a day or two. The S-04 stays
clumped up and floating around for maybe TWO WEEKS. Just my
observations...maybe someone else can comment on this aspect of the two
yeasts.


Bob F

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Sep 19, 2012, 10:51:53 AM9/19/12
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I'll be keeping an eye on that. Thanks.

Bob


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