When will fermentation start? - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > When will fermentation start?

Reply
 
Thread Tools
Old 08-21-2012, 12:20 PM   #1
Kmcogar
Recipes 
 
Nov 2011
Honolulu, Hawaii
Posts: 1,091
Liked 51 Times on 25 Posts



So, it's been a while since I have not made a starter. I was strapped for time. (due to some things that came up) my brewing schedule got messed up. I realized Sunday that I had to brew Monday night to get my brew done by the date I originally intended it for. I smacked my wyeast Irish ale pack around 7am Monday morning. I came home.... The yeast pack was full......Brewed my peanut butter porter and pitched my yeast around 11. I woke up this morning to no activity whatsoever. I'm so used to my yeast starters going crazy in a few hours.

Although I'm sure I'm fine. But......it's ok right? Just pay me on the back and tell me "it's gonna be ok"
__________________
Ęgir was a god who would host a party where all the gods would drink the beer he brewed for them. He made this in a giant kettle that Thor had brought. The cups in Ęgir's hall were always full, magically refilling themselves when emptied.

 
Reply With Quote
Old 08-21-2012, 12:22 PM   #2
Kmcogar
Recipes 
 
Nov 2011
Honolulu, Hawaii
Posts: 1,091
Liked 51 Times on 25 Posts


*also....why is there a difference between a yeast pack and a starter? More yeast cells? Or because the yeast has well......already started?
__________________
Ęgir was a god who would host a party where all the gods would drink the beer he brewed for them. He made this in a giant kettle that Thor had brought. The cups in Ęgir's hall were always full, magically refilling themselves when emptied.

 
Reply With Quote
Old 08-21-2012, 12:29 PM   #3
Kentunkel
Recipes 
 
Aug 2012
Bone Green, KY
Posts: 80
Liked 7 Times on 7 Posts


You're probably fine. Just taking some time for the yeast population to grow. Oxygenation, temperature, gravity, viability and other things will have an impact on lag time.

The smack pack isn't a starter because the pack isn't growing your cell count, simply waking your yeast up from their dormant state. A starter actually gives the yeast food and an environment to reproduce and build a population.

 
Reply With Quote
Old 08-21-2012, 12:34 PM   #4
duboman
Recipes 
 
Jul 2011
Glenview, IL
Posts: 6,368
Liked 508 Times on 470 Posts


Quote:
Originally Posted by Kmcogar View Post
*also....why is there a difference between a yeast pack and a starter? More yeast cells? Or because the yeast has well......already started?
A yeast pack is nothing more than a certain qty of yeast and a nutrient pack. At date of manufacture they are to contain approximately 100B cells, however through shipping and time cells begin to die off decreasing overall viability of the pack. This is the reason why starters are highly recommended for all strains of liquid yeast. Even at a perfect 100B cells the average beer over 1.030 is still underpitched.

Visit: http://www.yeastcalc.com or http://www.mrmalty.com and plug in the numbers including the date on package and you will be able to see value of viability as well as proper pitching rate calculation for your batch gravity.
__________________
Nothing Left to do but smile and drink beer.....

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

 
Reply With Quote
Old 08-21-2012, 12:38 PM   #5
Kmcogar
Recipes 
 
Nov 2011
Honolulu, Hawaii
Posts: 1,091
Liked 51 Times on 25 Posts


Quote:
Originally Posted by Kentunkel
You're probably fine. Just taking some time for the yeast population to grow. Oxygenation, temperature, gravity, viability and other things will have an impact on lag time.

The smack pack isn't a starter because the pack isn't growing your cell count, simply waking your yeast up from their dormant state. A starter actually gives the yeast food and an environment to reproduce and build a population.
Thanks. Just an FYI. I pitched at 78 degrees F. The gravity the 1.060. I use an aeration stone and pure oxygen for about 30 seconds.

The yeast was an older pack I needed to use up. I bought it in April. But the pack activated so I figured it was fine
__________________
Ęgir was a god who would host a party where all the gods would drink the beer he brewed for them. He made this in a giant kettle that Thor had brought. The cups in Ęgir's hall were always full, magically refilling themselves when emptied.

 
Reply With Quote
Old 08-21-2012, 12:47 PM   #6
Kmcogar
Recipes 
 
Nov 2011
Honolulu, Hawaii
Posts: 1,091
Liked 51 Times on 25 Posts


Quote:
Originally Posted by duboman

A yeast pack is nothing more than a certain qty of yeast and a nutrient pack. At date of manufacture they are to contain approximately 100B cells, however through shipping and time cells begin to die off decreasing overall viability of the pack. This is the reason why starters are highly recommended for all strains of liquid yeast. Even at a perfect 100B cells the average beer over 1.030 is still underpitched.

Visit: http://www.yeastcalc.com or http://www.mrmalty.com and plug in the numbers including the date on package and you will be able to see value of viability as well as proper pitching rate calculation for your batch gravity.
Looks like I'll be digging in the trash when I get home.

Worst case scenario? Buy another yeast pack? How long should I wait?
__________________
Ęgir was a god who would host a party where all the gods would drink the beer he brewed for them. He made this in a giant kettle that Thor had brought. The cups in Ęgir's hall were always full, magically refilling themselves when emptied.

 
Reply With Quote
Old 08-21-2012, 01:07 PM   #7
duboman
Recipes 
 
Jul 2011
Glenview, IL
Posts: 6,368
Liked 508 Times on 470 Posts


Quote:
Originally Posted by Kmcogar View Post
Looks like I'll be digging in the trash when I get home.

Worst case scenario? Buy another yeast pack? How long should I wait?
According to Yeastcalc the viability of a pack from April 1st was only 10% so you severely under pitched and the yeast is definitely stressed. I would give it a solid 48 hours before considering any action. If you have a LHBS nearby you can certainly pick up a fresh pack, make a starter and pitch it at full krausen
__________________
Nothing Left to do but smile and drink beer.....

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

 
Reply With Quote
Old 08-21-2012, 01:19 PM   #8
Kmcogar
Recipes 
 
Nov 2011
Honolulu, Hawaii
Posts: 1,091
Liked 51 Times on 25 Posts


My store is about an hour drive.......
__________________
Ęgir was a god who would host a party where all the gods would drink the beer he brewed for them. He made this in a giant kettle that Thor had brought. The cups in Ęgir's hall were always full, magically refilling themselves when emptied.

 
Reply With Quote
Old 08-21-2012, 01:33 PM   #9
grey487
Recipes 
 
Mar 2012
Brownsburg, IN
Posts: 43
Liked 1 Times on 1 Posts


Last week I pitched an older (mfg date of mid april) wyeast smack pack into a belgian dubbel with an OG of 1.060 without a starter. It took off after about 2 days. My LHBS Guru said as long as you're not much over 1.060 you don't need a starter.
__________________
Scott
Fermenting: Citrus IPA
Drinking:American Wheat, Pale Ale, Slovenian Blonde, Milk Stout
If I could figure out a way to SCUBA and drink Hombrew at the same time...well...I guess there wouldn't be anything left to try to attain in this life.

 
Reply With Quote
Old 08-21-2012, 01:36 PM   #10
Kmcogar
Recipes 
 
Nov 2011
Honolulu, Hawaii
Posts: 1,091
Liked 51 Times on 25 Posts


Quote:
Originally Posted by grey487
Last week I pitched an older (mfg date of mid april) wyeast smack pack into a belgian dubbel with an OG of 1.060 without a starter. It took off after about 2 days. My LHBS Guru said as long as you're not much over 1.060 you don't need a starter.
That's good to hear. I'm at work right now. So I guess I should get something done. Also help me get my mind off this brew.

It's my last brew session for about a year. Go figure.....
__________________
Ęgir was a god who would host a party where all the gods would drink the beer he brewed for them. He made this in a giant kettle that Thor had brought. The cups in Ęgir's hall were always full, magically refilling themselves when emptied.

 
Reply With Quote
Reply
Thread Tools



Forum Jump