Re-pitching S04 vs S05

[BDFST507]

Hello,

Im still pretty new and mostly lurk around for info. Ive done about 10 all-grain batches now and they all took off fairly quick except one Scotch ale that took three days. Well, the other day I split 10 gal of Indian Brown with a friend into two carboys and pitched S04. One took off in a few hrs and went crazy but Im coming up on 48hrs and the other has not done a thing. Im pretty confident in my sanitation and am going to wait for ~72hr before re-pitching if needed. My problem is I don't have any S04 on hand, but I do have a few packets of S05. Would it make a terrible difference using the S05? The LHBS is a ways away and I dont really have the time to run up there, but I would if thats my best option. Thanks!

 

[phuff7129]

I wouldnt't mess with it. Give it a week to 10 days and check your gravity. See where you are at. I have had beers ferment that don't look or act like they are fermenting but they do.

 

[BDFST507]

Yeah, i ll prob wait a week at tops and take a reading. Ill prob make a run to the LHBS ahead of time and grab another S04 just to be safe, incase i do need to re-pitch.

 

[TarheelBrew13]

72 hours should be sufficient to see a change in gravity. If there isn't any, I would repitch. The S05 will give the beer a different character, might be a nice experiment to compare with your friend's beer.

 

[BDFST507]

Checked gravity yesterday and nothing, went ahead and pitched s05 last night..going good this am! Will be neat to see how the beers differ.

 

[zachattack]

If you ferment them both close to 60, they'll both be pretty clean and taste the same. S-04 works fast and floccs like a champ IME, US-05 takes a little more time and will never completely drop out of the beer. I think S-04 doesn't attenuate quite as well, but that might not be noticeable. I'd say the biggest difference will probably be the clarity of the final beer. Let us know the result!