Rehydrate Safale US05 YEs or NO? - Home Brew Forums
Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Rehydrate Safale US05 YEs or NO?

Reply
 
Thread Tools
Old 05-04-2013, 10:21 PM   #1
JoseLima
Recipes 
 
Jan 2013
, California
Posts: 63
Liked 3 Times on 3 Posts



I making an American IPA and OG is going to be 1.065-1.070 and I am going to use Safale US 05.. Should I just rehydrate 1 packet or just pitch 2 packets or should I rehydrate 2 packets?
__________________
JoseLima

 
Reply With Quote
Old 05-04-2013, 10:22 PM   #2
duboman
Recipes 
 
Jul 2011
Glenview, IL
Posts: 6,368
Liked 508 Times on 470 Posts


If its an 11grqm pack rehydrate it and pitch
__________________
Nothing Left to do but smile and drink beer.....

The Commune Brewing Company-Perfecting the "art" of beer since 2010

Mexibilly Likes This 
Reply With Quote
Old 05-04-2013, 10:37 PM   #3
Dr. Francois
Recipes 
 
Jan 2009
Okemos, MI, Michigan
Posts: 614
Liked 40 Times on 32 Posts


1 packet is good. I would rehydrate.
__________________
Dr. François

"We are what we pretend to be, so we must be careful about what we pretend to be."
--Kurt Vonnegut

Mexibilly Likes This 
Reply With Quote
Old 05-04-2013, 11:00 PM   #4
alestateyall
Recipes 
 
Jun 2011
Posts: 735
Liked 89 Times on 58 Posts


Rehydrating is easy. Why not? I think you need two packets at that OG.

 
Reply With Quote
Old 05-04-2013, 11:06 PM   #5
Tupperwolf
Recipes 
 
Jan 2013
Posts: 271
Liked 35 Times on 27 Posts


One packet will be fine at that OG, and I agree that rehydrating is easy, especially if you just use a microwave to boil the water in a pyrex measuring cup, cool it in a small water bath, and add the yeast to the water at 95*-105*.
__________________
Bottles: Weedwhacker Wheat, SimCity IPA, MO/Cascade SMaSH
Primary: Sasquatch Imperial Stout, Bee Cave Kolsch
Next to brew: Some sort of enamel-melting IPA and a nut brown

 
Reply With Quote
Old 05-04-2013, 11:26 PM   #6
alestateyall
Recipes 
 
Jun 2011
Posts: 735
Liked 89 Times on 58 Posts


According to Brewing Classic Styles 5.5G of 1.070 SG wort needs about 275B yeast cells. According to the same book you will get 10-20B cells per gram of dry yeast.

Fermentis spec sheet for US-05 (don't know which yeast you are actually using) says there are 6B viable yeast cells per gram.

So to decide how much yeast to use decide how many viable yeast cells per gram you think you will get and divide 275 by that number. There are 11 grams per pack.

I would assume somewhere in the middle and go with 2 packs.

 
Reply With Quote
Old 05-05-2013, 12:09 AM   #7
Chromebrew
Recipes 
 
Jun 2012
Katy, Texas
Posts: 148
Liked 9 Times on 8 Posts


I know this is against the grain here, but I pitch dry yeast directly into the wort and I've never had a single problem. US-05 usually takes off for me within 24 hours from dry. I know its easy to do and I know there is some benefit to it, but from my experience, I end up with great fermentations and I don't feel the need to change it up.

2
People Like This 
Reply With Quote
Old 05-05-2013, 12:14 AM   #8
Hammy71
Senior Member
HBT_SUPPORTER.png
 
Hammy71's Avatar
Recipes 
 
Sep 2008
, Maryland, The Tax Me State
Posts: 5,891
Liked 527 Times on 400 Posts


Quote:
Originally Posted by Chromebrew View Post
I know this is against the grain here, but I pitch dry yeast directly into the wort and I've never had a single problem. US-05 usually takes off for me within 24 hours from dry. I know its easy to do and I know there is some benefit to it, but from my experience, I end up with great fermentations and I don't feel the need to change it up.
To beat a dead horse...zactly. One packet will do, but I'd probably put in two for sh&^ and giggles.

 
Reply With Quote
Old 05-05-2013, 12:18 AM   #9
beersk
Recipes 
 
Mar 2013
, Iowa City, IA
Posts: 1,063
Liked 171 Times on 149 Posts


I'd go 2 packets, rehydrated. Why skimp on yeast, you don't cut corners anywhere else, do you?

Mexibilly Likes This 
Reply With Quote
Old 05-05-2013, 12:41 AM   #10
JoseLima
Recipes 
 
Jan 2013
, California
Posts: 63
Liked 3 Times on 3 Posts


Thanks a lot for all great info!!!
__________________
JoseLima

 
Reply With Quote


Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Do I need to rehydrate Safale s-04? TomToro Fermentation & Yeast 22 04-01-2013 03:05 PM
safale us05 phenolic problems charlesmartin Fermentation & Yeast 10 05-24-2012 12:35 PM
Safale us05 advice needed plz!! namyarb3 Fermentation & Yeast 4 04-08-2012 01:01 PM
Open fermentation, Safale US05..... cutchemist42 Fermentation & Yeast 3 01-26-2012 07:48 PM
Safale US05 - Blowing off the blowoff Taypo Fermentation & Yeast 6 09-27-2011 01:05 PM


Forum Jump