2nd BIAB Brew - 86% efficiency - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > 2nd BIAB Brew - 86% efficiency

Reply
 
Thread Tools
Old 10-26-2010, 01:45 AM   #1
Sanspareil
Recipes 
 
Aug 2010
Libertyville, Lake County, Illinois
Posts: 36


OK, that's the good news, but it put my OG at 1.07 instead of ~1.05. I used 1 pack of Safeale 05 dry yeast. Should I add another package. Worried about underpitching. Any suggestions?
Thanks

 
Reply With Quote
Old 10-26-2010, 05:49 PM   #2
Nateo
 
Nateo's Avatar
Recipes 
 
Jul 2010
Bennett Springs, MO
Posts: 2,050
Liked 39 Times on 30 Posts


Did you aerate your wort? If you did, you'll be fine. Unless you're doing a 10 gallon batch.
__________________
To paraphrase Dr. England - "Off-flavors smooth with time. So do mountains. Brew it right from the start!"

My blogsite: http://nateobrew.blogspot.com/

 
Reply With Quote
Old 10-26-2010, 05:56 PM   #3
Fletch78
 
Fletch78's Avatar
Recipes 
 
Feb 2010
Athens GA
Posts: 1,345
Liked 26 Times on 18 Posts


Make sure to post back with finished results. I've read about BIAB and other methods where really high efficiency almost always correlates with tannin extraction as well. I'm not trying to poop in your cheerios... I'm just interested in hearing how this turns out.

 
Reply With Quote
Old 10-26-2010, 08:33 PM   #4
Sanspareil
Recipes 
 
Aug 2010
Libertyville, Lake County, Illinois
Posts: 36

I did aerate, it is just a five gallon batch, and it did take a bit longer to start to ferment, so I hope they were happy propagating yeasties.

As far as efficiency goes, my first BIAB was 79% and it was spectacular. (different grain bill, but I'm expecting this one to fine as well)

I will let you know in a few weeks.

Thanks for your responses.

 
Reply With Quote
Old 10-26-2010, 09:16 PM   #5
Nateo
 
Nateo's Avatar
Recipes 
 
Jul 2010
Bennett Springs, MO
Posts: 2,050
Liked 39 Times on 30 Posts


Apparently I do BIAB too, I just didn't know it was called that. My efficiencies are usually in the high 80s, and I've never had major tannin issues, not that I'd notice a low-level tannin problem.

The main factors influencing tannin production are temp and pH: temps over 170 and pH over 6. That said, I regularly do decoction mashes where a portion of the grains get to about 200F without any noticeable astringency.
__________________
To paraphrase Dr. England - "Off-flavors smooth with time. So do mountains. Brew it right from the start!"

My blogsite: http://nateobrew.blogspot.com/

 
Reply With Quote
Old 10-26-2010, 11:57 PM   #6
Sanspareil
Recipes 
 
Aug 2010
Libertyville, Lake County, Illinois
Posts: 36

Exactly, BIAB gets a lot of misinformation attached to it.

 
Reply With Quote
Old 10-27-2010, 04:06 AM   #7
jaginger
Recipes 
 
Feb 2009
Hartford, CT
Posts: 487
Liked 4 Times on 4 Posts


Quote:
Originally Posted by Nateo View Post
Apparently I do BIAB too, I just didn't know it was called that. My efficiencies are usually in the high 80s, and I've never had major tannin issues, not that I'd notice a low-level tannin problem.

The main factors influencing tannin production are temp and pH: temps over 170 and pH over 6. That said, I regularly do decoction mashes where a portion of the grains get to about 200F without any noticeable astringency.
Does it take an extended time over 170 to get tannins? I did a mashout and hit about 180 for 5 minutes or so. Is that long enough to get tannins or should it be fine?

 
Reply With Quote
Old 10-27-2010, 04:14 AM   #8
Nateo
 
Nateo's Avatar
Recipes 
 
Jul 2010
Bennett Springs, MO
Posts: 2,050
Liked 39 Times on 30 Posts


There are a lot of bogeymen in the homebrew world. Yeast Autolysis, DMS, tannins, you name it. I've heard a lot of "don't do ____ or you'll ruin your beer." In practice, I've never found that to be true. Beer is incredibly plastic and it takes a lot of mess-ups to actually make something "bad."

I've made beers that weren't great, but I've only had one batch that was undrinkably bad. Most of the time you'll end up making something at least better than PBR.

My German great-grandparents made beer in their washbasin on their farm in Kansas. They probably didn't know or care about tannins.
__________________
To paraphrase Dr. England - "Off-flavors smooth with time. So do mountains. Brew it right from the start!"

My blogsite: http://nateobrew.blogspot.com/

 
Reply With Quote
Old 10-27-2010, 06:58 PM   #9
jjones17
Recipes 
 
Oct 2009
Nanaimo, BC, Canada
Posts: 617
Liked 12 Times on 11 Posts


Quote:
Originally Posted by Nateo View Post
There are a lot of bogeymen in the homebrew world. Yeast Autolysis, DMS, tannins, you name it. I've heard a lot of "don't do ____ or you'll ruin your beer." In practice, I've never found that to be true. Beer is incredibly plastic and it takes a lot of mess-ups to actually make something "bad."

I've made beers that weren't great, but I've only had one batch that was undrinkably bad. Most of the time you'll end up making something at least better than PBR.

My German great-grandparents made beer in their washbasin on their farm in Kansas. They probably didn't know or care about tannins.
"Beer is incredibly plastic"?? I do not know what kind of beer you make, but Plastic is definately not a flavor I am going for.

I do BIAB too, the only time I had astringency was when I was sparging too hot. I find that 165 is the sweet spot for me, I always get 80-86% with that sparge, and I only sparge/mashout for 10 mins.

And I do squeeze the grain bag like it contains the last drink of water on earth.

 
Reply With Quote
Old 10-27-2010, 07:06 PM   #10
Nateo
 
Nateo's Avatar
Recipes 
 
Jul 2010
Bennett Springs, MO
Posts: 2,050
Liked 39 Times on 30 Posts


Get a dictionary, dude. Plastic means pliable. Beer will tolerate a lot of abuse and still come out decently.
__________________
To paraphrase Dr. England - "Off-flavors smooth with time. So do mountains. Brew it right from the start!"

My blogsite: http://nateobrew.blogspot.com/

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Improved my BIAB Sparge Efficiency drastically jjones17 All Grain & Partial Mash Brewing 8 01-31-2015 07:31 PM
Suggestions wanted to help improve efficiency on my BIAB method! Naked_Eskimo All Grain & Partial Mash Brewing 18 10-22-2010 05:30 AM
Second BIAB efficiency, 76% 262andbrew All Grain & Partial Mash Brewing 12 06-28-2010 04:26 AM
BIAB partial mash efficiency question neomantra All Grain & Partial Mash Brewing 2 05-26-2010 05:39 PM
Modified BIAB: hitting 85%+ efficiency jaginger All Grain & Partial Mash Brewing 26 02-28-2010 03:37 PM


Forum Jump