Lack of Diastatic Power Data...

[SwissRico]

Hi All,

So recently, whilst working on a Christmas American Brown Ale recipe, I found out about diastatic power (DP), and why I can't just swap one base malt (American 6-row) with another (Munich 20L).

What I'm finding hard, is that Weyermann (and my LHBS) don't publish DP numbers (°WK or °L), and for Maris Otter (which has been my goto) I've seen numbers from 40°L to 150°L. Can they all be right?

Current grain bill for my partial mash looks like this (metric, but I'm adding the %):
Maris Otter 700g (25%) 50°L
Munich 20L 200g (7.1%) 30°L
CaraAroma 300g (10.7%) 0°L
Toasted Oats 100g (3.6%) 0°L
and
Amber LME 1.5kg (53.6%)

with my Maris Otter estimated at 50°L, my average DP is 31.5°L for this. However if the DP range of Maris Otter is 40°L to 150°L, then my average would be 26°L (bad) to 85°L (good)

 

[WrQth]

I believe °L is a measurement of color not diastatic power

Edit: °L denomination is used for both degrees lintner and lovibond. Easily confusing, disregard my comment.

 

[SwissRico]

yes °L an °L... maybe why the MO DP numbers are so off... maybe?

 

[flars]

Northern Brewer posts DP numbers for individual grains. It isn't in a chart form so could be a little slow to look up.

 

[chickypad]

Beersmith has Weyermann Munich I at 50 L and Munich II at 25L. What is the maltser on the MO?

 

[SwissRico]

I've been looking for clues... The MO in question appears to be an MO/pale ale blend 4.5-5.5EBC (2.2-2.6°lovibond) ... The only one in spec seems to be Bairds (http://www.brewersselect.co.uk/ingredients/products/bairds-maris-otter-pale-ale-malt-wholegrain) which they quote at 45L... So with 25L on the Munich II, it looks like I'm going to need to call in a favor and get a few 100g of something a bit more active.

 

[jtratcliff]

Lovibond and EBC are for color... Not diastatic power.

 

[ol-hazza]

Not sure how much use this will be with it being a New Zealand maltster but going to leave it here anyway.

Has Diastatic power measured in Windisch–Kolbach units just to make things more confusing as well

 

[SwissRico]

Jtratcliff... Erm yes, that was the only clue to the malts tee. But with only the name and the color, it looks like it's Bairds. Muntons is too dark (6°Lovibond)

 

[SwissRico]

*malts tee* read maltster + autocorrect