S-04. What sort of OG will one packet cope with?

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S-04. What sort of OG will one packet cope with?

Postby kohoutec » Thu Dec 22, 2016 23:51

I'm doing a reasonably big porter over Xmas. BeerSmith has estimated the OG at 1064. I'm planning on using up a packet of S-04 I have but getting paranoid I might need to get thee to the LHBS to buy an extra packet.

What's the verdict, is one enough or should I double up? Read varying opinions on what it can handle...I think 2 packs is probably overkill?!

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Re: S-04. What sort of OG will one packet cope with?

Postby The Goatreich » Fri Dec 23, 2016 00:00

What's the brew length?

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Re: S-04. What sort of OG will one packet cope with?

Postby kohoutec » Fri Dec 23, 2016 09:04

The Goatreich wrote:What's the brew length?

Sorry that would help, 23l
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Re: S-04. What sort of OG will one packet cope with?

Postby aamcle » Fri Dec 23, 2016 09:28

MrMalty's calculator says that 14.4 g of yeast is needed that would be 1.2 packets so it's marginal. I'd get a second packet and use both there will not be enough extra to cause harm.


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Re: S-04. What sort of OG will one packet cope with?

Postby kohoutec » Fri Dec 23, 2016 15:53

For the sake of a couple of quid it would be daft not to, so braved the traffic at lunch time :)
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Re: S-04. What sort of OG will one packet cope with?

Postby john luc » Fri Dec 23, 2016 17:20

Better to over pitching than under pitching I would suggest.
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Re: S-04. What sort of OG will one packet cope with?

Postby robwalker » Fri Dec 23, 2016 19:11

Yea go for 2, those packs are a bit of an under pitch anyway.
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Re: S-04. What sort of OG will one packet cope with?

Postby Kev888 » Fri Dec 23, 2016 23:09

Yes, two packs here too. Its marginal in this case, but unless you want some characteristic that under-pitching emphasises, then slightly more is almost always better than slightly less IMO. Its also a helpful margin if you don't know how well the yeast have been kept before your purchase.

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Re: S-04. What sort of OG will one packet cope with?

Postby HLA91 » Sat Dec 24, 2016 12:34

I know Glamorgan Brewery underpitch in all their brews, but they said that their ability to keep the fermenting temp to within 0.5 degrees helps ensure the underpitch doesn't negatively effect the beer.


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Re: S-04. What sort of OG will one packet cope with?

Postby john luc » Sat Dec 24, 2016 13:26

Does their beers agree :whistle:
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