Vienna/Munich diastatic power - Home Brew Forums

Register Now!
Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Vienna/Munich diastatic power

Reply
 
Thread Tools
Old 01-06-2009, 01:38 AM   #1
Shawn Hargreaves
Recipes 
 
Jun 2008
Seattle
Posts: 344
Liked 5 Times on 4 Posts



I've been doing partial mashes with a couple of pounds of 2 row, some Vienna or Munich, and a handful of specialty malts (biscuit, aromatic, etc, depending on my mood).

I find myself on a quest to push the quantity of Vienna/Munich as high as it can go. But my current setup can only fit 4 pounds of grain in total, so I have to reduce the amount of base malt to make room.

I know these malts can self convert, but do they have enough diastatic power to also convert specialty malts? For instance I'm toying with something like:
  • 2.5 lb Vienna
  • 0.75 lb honey malt
  • 0.5 lb biscuit

but I fear this may be pushing it too far and I need to fit some 6 row in there as well?

Backing up a step, can anyone recommend a good resource on how to calculate this stuff? I have info about the diastatic power of various malts, but I don't understand the units - it seems like somewhere around 30 is the ability to self convert, and then it goes up from there? Anyone got a formula for working out whether any given combination of base malt + specialty is going to work out?

 
Reply With Quote
Old 01-06-2009, 01:43 AM   #2
Desert_Sky
 
Desert_Sky's Avatar
Recipes 
 
Mar 2006
Sierra Vista, AZ
Posts: 4,077
Liked 53 Times on 41 Posts


Yep

Experiment, and you'll see that you can go all Vienna or Munich base malts. Talk about a malty beer when its all done too!
__________________
Desert Sky Brewing Co.
Sierra Vista, AZ

 
Reply With Quote
Old 01-06-2009, 01:44 AM   #3
DeathBrewer
Maniacally Malty
HBT_LIFETIMESUPPORTER.png
 
DeathBrewer's Avatar
Recipes 
 
Apr 2007
Oakland, CA
Posts: 21,790
Liked 263 Times on 134 Posts


munich has less than vienna but can still self-convert

according to wikipedia, you need about a diastatic power of 35 Litner to self-convert. so i'd imagine anything over that and you have potential for conversion of other grains.

Diastatic power - Wikipedia, the free encyclopedia

Vienna malt (from and according to briess) has a diastatic power of 130°L. that should be more than enough.

http://www.brewingwithbriess.com/Ass...na_Malt_WK.pdf

Munich, at 40°L, might be more troublesome:

http://www.brewingwithbriess.com/Ass...ch_Malt_WK.pdf

the grain bill you suggested would work just fine.
__________________
Easy Partial Mash Brewing - Stovetop All-Grain Brewing

"Death is always with us." - Brewpastor

Quote:
DIAICYLF
We will remember...

 
Reply With Quote
Old 01-06-2009, 02:21 AM   #4
T-Hops
Recipes 
 
Apr 2008
Western Wisconsin
Posts: 124

I would recommend a longer mash if you are using large amounts of Munich/Vienna without any other base malt.

 
Reply With Quote
Old 01-06-2009, 02:32 AM   #5
Desert_Sky
 
Desert_Sky's Avatar
Recipes 
 
Mar 2006
Sierra Vista, AZ
Posts: 4,077
Liked 53 Times on 41 Posts


Quote:
Originally Posted by T-Hops View Post
I would recommend a longer mash if you are using large amounts of Munich/Vienna without any other base malt.
Theres not really any need to go longer than 1 hour. They will convert just fine. Try it, and do the starch test

Even though munich is kilned a bit higher, it still has enough diastatic power to convert just fine. Vienna will convert no problem
__________________
Desert Sky Brewing Co.
Sierra Vista, AZ


 
Reply With Quote
Old 01-06-2009, 03:52 AM   #6
Shawn Hargreaves
Recipes 
 
Jun 2008
Seattle
Posts: 344
Liked 5 Times on 4 Posts


Awesome, thanks for the info guys!

I've always thought of as Munich and Vienna as basically interchangeable, since they taste so similar. But it makes total sense that the lighter kilned one would have more diastatic power.

 
Reply With Quote
Old 06-10-2010, 05:30 AM   #7
fredthecat
Recipes 
 
Dec 2009
the world
Posts: 495
Liked 14 Times on 14 Posts


im really confused about vienna malts diastatic power. on most sites i find people saying it has about a 130 in diastatic power, but i remember asking about it before here and some people saying it is really weak in conversion, also just found a page saying it has a DP of 50 ?? whats the deal? if its 130 i was planning on using it in a rye beer

 
Reply With Quote
Old 06-10-2010, 06:08 AM   #8
Panagiotis
Recipes 
 
Feb 2008
Athens, Greece
Posts: 53
Liked 1 Times on 1 Posts


as for Munich, i did a 90% Munich Alt recently. It just took a little longer to convert (turned out to be a fine brew also).

 
Reply With Quote
Old 06-10-2010, 06:45 AM   #9
fredthecat
Recipes 
 
Dec 2009
the world
Posts: 495
Liked 14 Times on 14 Posts


yeah i heard it has low DP, so i made an alt that was about 50/50 munich/pils, its great but i wish i went with 80% + munich

 
Reply With Quote
Old 06-10-2010, 08:31 AM   #10
DeathBrewer
Maniacally Malty
HBT_LIFETIMESUPPORTER.png
 
DeathBrewer's Avatar
Recipes 
 
Apr 2007
Oakland, CA
Posts: 21,790
Liked 263 Times on 134 Posts


http://www.brewingwithbriess.com/Pro...lts.htm#Vienna

Briess is 130 DP, Munich is 40. The german malts may be lower, but it's still more than enough to convert itself and other adjuncts.
__________________
Easy Partial Mash Brewing - Stovetop All-Grain Brewing

"Death is always with us." - Brewpastor

Quote:
DIAICYLF
We will remember...

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
diastatic power JLem Brew Science 5 09-27-2009 03:12 AM
diastatic power help pls nutcase All Grain & Partial Mash Brewing 6 04-09-2009 05:09 PM
Diastatic power captainfindus General Techniques 4 02-21-2008 03:30 PM
2-row diastatic power WortMonger Recipes/Ingredients 6 10-02-2007 06:08 PM
What determines diastatic power? jeff All Grain & Partial Mash Brewing 8 09-10-2007 08:56 PM


Forum Jump