Electric Brewing Supply 30A BCS Giveaway!


Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Bohemian Pilz, mash schedule
Reply
 
LinkBack Thread Tools
Old 12-19-2009, 04:59 PM   #1
beefeater
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2007
Location: Norway
Posts: 129
Liked 1 Times on 1 Posts

Default Bohemian Pilz, mash schedule

Hello!

I'm putting together a recipe based on this article:
http://www.brewingtechniques.com/lib...3/urquell.html

It mentions a mash schedule like this:

Mash in at 95°F for acid rest at 1.85l/kg (0.89qt/lb)
Decoct to 127°F for protein rest
Decoct to 143°F for starch conversion
Decoct to 163°F for mash-out

I'll skip the acid rest and mash in directly for the protein rest making it a double decoction mash instead of a triple.
But my concern here is the extremely thick mash.. I'd be inclined to double the amount of water. Why would I want to keep the mash as thick as in the article?

__________________
beefeater is offline
 
Reply With Quote Quick reply to this message
Old 12-19-2009, 10:26 PM   #2
BigEd
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2004
Posts: 2,370
Liked 118 Times on 104 Posts
Likes Given: 18

Default

You could add a little more water if you like but typically decoction mashes are done on the thick side. I would also consider raising the rest temps a bit, perhaps using 55C/131F; 55C/149F and 76C/169F for mashout.

__________________
BigEd is offline
 
Reply With Quote Quick reply to this message
Old 12-20-2009, 07:27 AM   #3
beefeater
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2007
Location: Norway
Posts: 129
Liked 1 Times on 1 Posts

Default

Thank you for your suggestions, I think I might go for a very thick mash just to see what happens. It will allow for lots of sparge water and maybe better efficiency too? I did a couple of decocted lagers last winter, but those mashes were really thin, per some advise I found on the net, and the beers were great that way too.

Will read a bit more on temperatures. The low (72C) mashout is so low that it will probably be some conversion going on. What about keeping the 72 step and use the first sparge-water infusion (I batch sparge) to achieve mashout temperatures?

__________________
beefeater is offline
 
Reply With Quote Quick reply to this message
Old 12-20-2009, 01:11 PM   #4
BigEd
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2004
Posts: 2,370
Liked 118 Times on 104 Posts
Likes Given: 18

Default

Quote:
Originally Posted by beefeater View Post

Will read a bit more on temperatures. The low (72C) mashout is so low that it will probably be some conversion going on. What about keeping the 72 step and use the first sparge-water infusion (I batch sparge) to achieve mashout temperatures?
That would work I'm sure. Re mash thickness ratio I use 1qt:1lb (2L:1Kg). Bear in mind that decoction mashes will thin out some as the process continues. That mashing schedule in the old BT article is probably based on Urquell's traditional mash profile. This would have been for malt far less modified than what is available currently. That was why I suggested the simplified schedule with higher temperatures. Good luck with the beer, a PU style brew is a thing of beauty and a lot of fun to brew at home.
__________________
BigEd is offline
 
Reply With Quote Quick reply to this message
Old 12-20-2009, 02:21 PM   #5
Tonedef131
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2008
Location: Fort Wayne
Posts: 1,906
Liked 22 Times on 12 Posts
Likes Given: 3

Default

Be sure to replace the water lost from boil off during the decoction boils, otherwise it will get too thick.

__________________
Tonedef131 is offline
 
Reply With Quote Quick reply to this message
Old 12-20-2009, 05:34 PM   #6
beefeater
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2007
Location: Norway
Posts: 129
Liked 1 Times on 1 Posts

Default

Thanks again for the input!

I'm brewing this tomorrow, and I think I will go for a little thinner mash and higher temps. 149 (65C) is what I usually mash at with single infusions. Could probably have done a single infusion here too, but I want to try to brew this classic beer in a classic way because it's fun!

__________________
beefeater is offline
 
Reply With Quote Quick reply to this message
Old 12-21-2009, 03:31 AM   #7
TristanL
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2009
Location: Wausau, WI, Wisconsin
Posts: 109
Liked 3 Times on 3 Posts

Default

Check this out. I skipped the acid and protein rest altogether. Striked at sacc and decocted to alpha, then a decoction to mash out. I'm very happy with the outcome.

http://www.homebrewtalk.com/f39/czec...-diary-141010/

__________________
TristanL is offline
 
Reply With Quote Quick reply to this message
Old 12-21-2009, 05:02 PM   #8
beefeater
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2007
Location: Norway
Posts: 129
Liked 1 Times on 1 Posts

Default

Just brought this baby to a boil;

4.5kg Pilsener malt
21 liter batch, boil two hours
25g Saaz 120 min (FWH)
40g Saaz 80 min
40g Saaz 25 min
WLP 800

Got 87% efficiency so I'll overshoot the OG somewhat. Just a bonus!

Planned on a 55, 65, 72 and 76 degree C combination decoction and infusion mash.
Beersmith is not good at calculating decoctions (or I'm missing something..). I remembered this from a previous attempt and drew larger than calculated decoctions. Still I missed temperatures on the low side.Had to make some extra quick decoctions, so my actual schedule became like 55, 59, 64, 66, 68, 72, 76...
If this isn't handmade beer I don't know what qualifies
It's a fun process, recommend it to anyone who can take the time

__________________
beefeater is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Help with Mash Schedule cbird01 All Grain & Partial Mash Brewing 9 09-08-2009 04:55 AM
What's your best mash schedule? rocketman768 All Grain & Partial Mash Brewing 1 01-23-2009 07:07 PM
Thoughts about a first lager. Pilz 1.0 beefeater All Grain & Partial Mash Brewing 1 08-11-2008 12:53 PM
Mash Schedule beer Rph All Grain & Partial Mash Brewing 8 11-28-2007 01:43 PM
10 Gallon Partial Mash Bohemian Pilsner Recipe digdan Recipes/Ingredients 4 01-11-2007 07:13 PM