Help With a Promash Decoction Schedule? - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Help With a Promash Decoction Schedule?

Reply
 
Thread Tools
Old 11-05-2012, 06:27 PM   #1
MrManifesto
Recipes 
 
Apr 2011
Brooklyn, NY
Posts: 433
Liked 11 Times on 11 Posts



I would like to clone Scheider Weisse Original Tap 7 and I found what looks like a very good recipe for it. Trouble is, I'm not sure how read the schedule below. I've brewed plenty of all grain but never done a decoction or used Promash. Any help?


Step Rest Start Stop Heat Infuse Infuse Infuse Step Name Time Time Temp Temp Type Temp Amount Ratio ---------------------------------------------------------------------------------
Strike 5 15 93 93 Infuse 97 7.58 1.00 Protein Rest 5 125 122 122 Infuse 212 2.93 1.39 Low Mash 95 65 152 152 Decoc 212 4.60 0.65 (Decoc Thickness) High Mash 40 30 166 166 Decoc 212 3.01 1.50 (Decoc Thickness) Sparge 5 30 168 168 Infuse 180 2.01 1.65

 
Reply With Quote
Old 11-06-2012, 02:32 AM   #2
MrManifesto
Recipes 
 
Apr 2011
Brooklyn, NY
Posts: 433
Liked 11 Times on 11 Posts


Bumpo?

Help a brudda out!

 
Reply With Quote
Old 11-06-2012, 02:22 PM   #3
billl
Recipes 
 
May 2012
Raleigh, NC
Posts: 2,305
Liked 376 Times on 317 Posts


Sorry, I don't have the software and that formatting is horrible. I would highly recommend watching the northern brewer/brewtv video on decoction. It is a really walks through the steps and you can see how thick the different steps should be.

 
Reply With Quote
Old 11-07-2012, 08:32 PM   #4
DSmith
Recipes 
 
Sep 2011
Robbinsdale, MN
Posts: 796
Liked 77 Times on 64 Posts


Quote:
Originally Posted by MrManifesto View Post
I would like to clone Scheider Weisse Original Tap 7 and I found what looks like a very good recipe for it. Trouble is, I'm not sure how read the schedule below. I've brewed plenty of all grain but never done a decoction or used Promash. Any help?


Step Rest Start Stop Heat Infuse Infuse Infuse Step Name Time Time Temp Temp Type Temp Amount Ratio ---------------------------------------------------------------------------------
Strike 5 15 93 93 Infuse 97 7.58 1.00 Protein Rest 5 125 122 122 Infuse 212 2.93 1.39 Low Mash 95 65 152 152 Decoc 212 4.60 0.65 (Decoc Thickness) High Mash 40 30 166 166 Decoc 212 3.01 1.50 (Decoc Thickness) Sparge 5 30 168 168 Infuse 180 2.01 1.65
I love Promash. Here's is a set of screenshots that will help you fill in your #'s, not even attempting to model any mash. The top is for the infusion steps, the bottom is for the decoction steps - note the labels change depending on what you click on (infusion vs decoction step). The 0.65 (thick decoction) and 1.5 (thin decoction) probably affect the heat capacity part of the calculations. I've found that you always need more infusion or decoction volume than Promash calculates.

I've filled in YOUR #'s into a table out of curiosity (pic below). Some of the timings seem a little strange because of how long they are. Identifying the rest temperatures and times is probably the most important part and you can figure out with other tools how to do it with your system. Also note that there is no planned temperature loss during these steps - pull more decoction than needed and have near boiling water around to hit your temperatures in real life.

Click image for larger version

Name:	Promash.jpg
Views:	82
Size:	57.4 KB
ID:	82842
Click image for larger version

Name:	Promash_1.jpg
Views:	77
Size:	125.2 KB
ID:	82845

 
Reply With Quote
Old 11-07-2012, 08:35 PM   #5
helibrewer
HBT_SUPPORTER.png
 
helibrewer's Avatar
Recipes 
 
Nov 2011
Santa Rosa, CA
Posts: 3,808
Liked 324 Times on 274 Posts


When I do a single decoction I just split the batch at the begining, starting one portion at about 122, bringing the other to a boil for 10 minutes, then combining them to reach the sacch rest. For multiples it does take a bit more planning.
__________________
Something is always fermenting....
"It's Bahl Hornin'"

Primary:
Kegged: Bourbon Barrel Imperial Stout
On Deck: German Lager

 
Reply With Quote
Old 11-12-2012, 04:25 AM   #6
MrManifesto
Recipes 
 
Apr 2011
Brooklyn, NY
Posts: 433
Liked 11 Times on 11 Posts


Sorr to bump this again but this still seems like gibberish and badly formatted columns to me. Anyone feel generous enough to break it down, like with a crayon?

 
Reply With Quote
Old 11-12-2012, 02:41 PM   #7
billl
Recipes 
 
May 2012
Raleigh, NC
Posts: 2,305
Liked 376 Times on 317 Posts


As written plus random comments:

Mash in with 7.58 quarts of 97 degree water. Hold for 15 minutes at 93.

Add 2.93 quarts of boiling water for protein rest. Hold for 125 minutes at 122. (This seems nutty - more like 20 minutes)

Remove 4.6 quarts of thick mash. (scoop from the bottom and kinda drain the liquid from the side - see video) Bring that to a boil and return to the tun. Hold for 65 min at 152.

Remove 3.01 quarts of thin mash. Bring that to a boil and return to the tun. Hold for 30 minutes at 166.

Sparge to collect your boil volume.

MrManifesto Likes This 
Reply With Quote
Old 11-12-2012, 03:10 PM   #8
DSmith
Recipes 
 
Sep 2011
Robbinsdale, MN
Posts: 796
Liked 77 Times on 64 Posts


Thanks bill!

If I was making this, I'd dough-in thick (0.8 qt/lb) at 110F and wait 20 minutes (Ferulic Acid Rest), infuse with boiling water to 152F (probaby end up at 2 qt/lb) and wait for conversion (60-90 minutes, iodine test negative). Drain "some" of the first runnings, boil for a few minutes, dump back into the mash tun, stir, vorlauf, drain, sparge.

This was the mash schedule for my Hefeweizen.

I like to drain the mash tun in the about 160F, either with infusing with boiling water or doing the thin decoction (as described above). Both ways accomplish that with very little effort. If it's German, the thin decoction seems more appropriate.

Click image for larger version

Name:	Hefeweizen.jpg
Views:	50
Size:	28.0 KB
ID:	83600

 
Reply With Quote
Old 11-14-2012, 06:27 AM   #9
MrManifesto
Recipes 
 
Apr 2011
Brooklyn, NY
Posts: 433
Liked 11 Times on 11 Posts


Quote:
Originally Posted by billl View Post
As written plus random comments:

Mash in with 7.58 quarts of 97 degree water. Hold for 15 minutes at 93.

Add 2.93 quarts of boiling water for protein rest. Hold for 125 minutes at 122. (This seems nutty - more like 20 minutes)

Remove 4.6 quarts of thick mash. (scoop from the bottom and kinda drain the liquid from the side - see video) Bring that to a boil and return to the tun. Hold for 65 min at 152.

Remove 3.01 quarts of thin mash. Bring that to a boil and return to the tun. Hold for 30 minutes at 166.

Sparge to collect your boil volume.
Here we go, thanks for breaking it down.

Seems like I'd like have more temp loss, only using around 2 gallons at 97, I would think there would be more than 4 degrees temp loss. When I mash in using 1.5q per pound, I usually figure in 15 degrees temp loss (like if I'm trying to hit 152 I mash in at 167), which gets me around 4 degrees over, which is perfect because I stir like a maniac for 10min anyway, mixing and cooling.

Thanks for this!

 
Reply With Quote
Old 11-14-2012, 02:42 PM   #10
billl
Recipes 
 
May 2012
Raleigh, NC
Posts: 2,305
Liked 376 Times on 317 Posts


The temp drop is not the same scale when you are working with temps that are close together. eg you put 70 degree grains in 160 degree water, and you get a big temp drop. You put the same 70 degree grains in 72 degree water and the temp will hardly budge. That is why you either need to use one of the mash calculators or be prepared to do some thermodynamics calculations.

Easy "trick" - always boil more wort than the calculations say. Then, add the calculated amount in first and check the temp. If you need to raise it, you have more boiling wort already. If not, you can let that extra sit in the pot and cool for a couple minutes before adding it back in. An extra half quart will cool pretty quickly in an uninsulated pot.

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Decoction vs. No Decoction - My Results Newbeerguy All Grain & Partial Mash Brewing 8 01-05-2013 12:23 AM
Decoction mash schedule. beefeater All Grain & Partial Mash Brewing 5 01-25-2010 11:03 PM
Decoction mash schedule for Schwarzbier? ceannt All Grain & Partial Mash Brewing 15 12-21-2009 01:36 PM
Promash Born Brewing Co. All Grain & Partial Mash Brewing 20 08-10-2007 11:51 PM
Promash McKBrew Brewing Software 1 05-17-2007 07:06 PM


Forum Jump