Welcome, Guest. Please login or register.

Author Topic: Re: American Stout :: Sierra Nevada Stout Clone  (Read 11573 times)

Offline brew

  • Treasurer
  • Administrator
  • Forum Ninja
  • *****
  • Posts: 3154
  • Mild mannered suburbian
    • Google Plus
  • Liked:
  • Likes Given: 652
Re: Mash Temp versus OG/FG
« Reply #30 on: October 19, 2011, 12:27:49 PM »
Quote from: "Dean"
There was no apparent tachometer present, but the last time I had the good fortune to observe your milling operation in full-swing the sweat rolling off your brow would indicate an estimated steady 60 -75 RPM.


I think I came in at the tail end of it, looked more like 30 rpm to me...  :banana:

Sorry Richard, couldn't resist!!
NBCBA Treasurer
Planned: Drink beer later, Primary: Drink beer soon, Secondary: Drink beer shortly, Kegged: Drinking beer now

Offline Gil Breau

  • Junior Poster
  • **
  • Posts: 407
    • http://drakemarshbrew.blogspot.com/
  • Liked:
  • Likes Given: 0
Re: Mash Temp versus OG/FG
« Reply #31 on: October 19, 2011, 12:28:41 PM »
Quote
the foul look on your face clearly indicated a drop in the aforementioned rate


This alone is the only tachometer home brewers need:

Face of concentration - > Max RPMs (~150-200)
Foul, exhausted look -> Min RPMs (~50-75)

Scale to current rpm level dependent on progress of hopelessness on millers face,  +/- X% where x is the perspiration level :P
My Brew Blog!
http://drakemarshbrew.blogspot.com/

Current on Tap: Maple Ale, Blonde Lager. "Pils" Ale, Chocolate Sweet Stout, Hefe
Fermenting/Priming:
Projects:Strawberry-Rhubarb Hefe

Offline fakr

  • Administrator
  • Forum Hero
  • ****
  • Posts: 1545
  • Liked:
  • Likes Given: 48
Re: Mash Temp versus OG/FG
« Reply #32 on: October 19, 2011, 12:31:52 PM »
lol!

I guess a quick calculation of the outer speed of the 250mm rollers at 400rpm would allow me to calculate the actual rpm required for the little rollers in my setup.  Thanks for pointing that out richard.  my crush would have been too fast.
I'm still going to setup an electric motor and pullies to do the job.
"If God had intended for us to drink beer, He would have given us stomachs."

Offline brew

  • Treasurer
  • Administrator
  • Forum Ninja
  • *****
  • Posts: 3154
  • Mild mannered suburbian
    • Google Plus
  • Liked:
  • Likes Given: 652
Re: Mash Temp versus OG/FG
« Reply #33 on: October 19, 2011, 12:38:39 PM »
Quote from: "Gil Breau"
Face of concentration - > Max RPMs (~150-200)
Foul, exhausted look -> Min RPMs (~50-75)

Scale to current rpm level dependent on progress of hopelessness on millers face,  +/- X% where x is the perspiration level :P


Looks right - I fear the math for the scale is a bit complicated though, I suspect the Face of concentration, lets call it mu, and the foul exhausted look, lets call it beta, are inversely and exponentially related. Further, I suspect there is a coefficient of brewing desire expressed as a factor of X above which is pivotal to the entire equation - a quadratic I'm guessing?
NBCBA Treasurer
Planned: Drink beer later, Primary: Drink beer soon, Secondary: Drink beer shortly, Kegged: Drinking beer now

Offline Dean

  • Junior Poster
  • **
  • Posts: 434
  • Liked:
  • Likes Given: 0
Re: Mash Temp versus OG/FG
« Reply #34 on: October 19, 2011, 12:51:06 PM »
ugh ...quadratic ....flashback ...make the bad man stop!

of course there's another possible variable in there too ...that being the number of smartasses present and offering advice?

Offline Gil Breau

  • Junior Poster
  • **
  • Posts: 407
    • http://drakemarshbrew.blogspot.com/
  • Liked:
  • Likes Given: 0
Re: Mash Temp versus OG/FG
« Reply #35 on: October 19, 2011, 01:04:12 PM »
Don't forget the beer ingested beforehand!

The sad thing is, all the extra variables are all negatively inducing ones...lol
My Brew Blog!
http://drakemarshbrew.blogspot.com/

Current on Tap: Maple Ale, Blonde Lager. "Pils" Ale, Chocolate Sweet Stout, Hefe
Fermenting/Priming:
Projects:Strawberry-Rhubarb Hefe

Offline Richard

  • Charter Member
  • Forum Ninja
  • *****
  • Posts: 4618
  • Liked:
  • Likes Given: 67
Re: Mash Temp versus OG/FG
« Reply #36 on: October 19, 2011, 01:53:42 PM »
fakr: I think if you follow through with that logic you'll actually end up with a speed even faster than 400RPM... 10 inch diameter would be 31inch-ish circumference, so 400RPM would be 12400 inch/minute - the equivalent on a 2-inch (6.2-ish inch circumference) roller would be 2000RPM :P
Charter Member

Kegged: air.
Primary: air.
Bulk Aging: Silence of the Lambics (Pitched 13/05/2012).
Owed: JQ LSA x 1, Kyle Stout x 1 & IPA x 1.

Offline pliny

  • NBCBA
  • Senior Poster
  • ***
  • Posts: 799
  • Liked:
  • Likes Given: 250
Re: Mash Temp versus OG/FG
« Reply #37 on: October 19, 2011, 01:59:41 PM »
Gosh, my biggest concern is to make sure I don't flip the crusher and spill the grains all over the floor when I'm crushing. If I can dough-in without incident, I'm happy!

Offline Jake

  • President
  • Forum Hero
  • ****
  • Posts: 1743
  • Liked:
  • Likes Given: 182
Re: Mash Temp versus OG/FG
« Reply #38 on: October 19, 2011, 04:01:07 PM »
Crush ? I usually stomp my grain
President of the NBCBA

Offline Richard

  • Charter Member
  • Forum Ninja
  • *****
  • Posts: 4618
  • Liked:
  • Likes Given: 67
Re: Mash Temp versus OG/FG
« Reply #39 on: October 19, 2011, 04:05:20 PM »
lmfao
Charter Member

Kegged: air.
Primary: air.
Bulk Aging: Silence of the Lambics (Pitched 13/05/2012).
Owed: JQ LSA x 1, Kyle Stout x 1 & IPA x 1.

Offline Dean

  • Junior Poster
  • **
  • Posts: 434
  • Liked:
  • Likes Given: 0
Re: Mash Temp versus OG/FG
« Reply #40 on: October 19, 2011, 04:07:30 PM »
Quote from: "Jake Saunders"
Crush ? I usually stomp my grain


I was there the day Richard spread your grain out on the floor and demonstrated the procedure   :banana:

Offline Richard

  • Charter Member
  • Forum Ninja
  • *****
  • Posts: 4618
  • Liked:
  • Likes Given: 67
Re: Mash Temp versus OG/FG
« Reply #41 on: October 19, 2011, 04:11:08 PM »
:oops:

It's ok; when Jake brought my splits over he did the same to one of my bags - karma, eh ;)
Charter Member

Kegged: air.
Primary: air.
Bulk Aging: Silence of the Lambics (Pitched 13/05/2012).
Owed: JQ LSA x 1, Kyle Stout x 1 & IPA x 1.

Offline Dean

  • Junior Poster
  • **
  • Posts: 434
  • Liked:
  • Likes Given: 0
Re: Mash Temp versus OG/FG
« Reply #42 on: October 19, 2011, 04:14:59 PM »
hahaha ..I almost did it to myself too - those bags are thin

the funniest part at Jake's was a few minutes later when the vacuum showed up with the message "Jake's girlfriend says to give this to Richard"

Offline sdixon

  • NBCBA
  • Senior Poster
  • ***
  • Posts: 753
  • Liked:
  • Likes Given: 0
Re: Mash Temp versus OG/FG
« Reply #43 on: October 19, 2011, 04:18:11 PM »
I actually used a rolling pin to crush my grain once :roll:
"Good people drink good beer"
Hunter S. Thompson


On Tap]

Offline Richard

  • Charter Member
  • Forum Ninja
  • *****
  • Posts: 4618
  • Liked:
  • Likes Given: 67
Re: Mash Temp versus OG/FG
« Reply #44 on: October 19, 2011, 04:18:58 PM »
I really hope that was only for partial mash/specialty grains :P
Charter Member

Kegged: air.
Primary: air.
Bulk Aging: Silence of the Lambics (Pitched 13/05/2012).
Owed: JQ LSA x 1, Kyle Stout x 1 & IPA x 1.