Summer Dunkelweizen

[Gricey]

So I have my summer hefe (that some people tell me isn't a hefe ) which I was gonna brew this week, but one of my main suppers has just got back from Italy and has become rather fond of Dunkelweizens. Given that I have some WLP300 on a stir plate I thought feck it, I'll do one of those instead and use the other grain next time. So here is what I plan to brew for a Dunkelweizen, with a frig load of wheat. Let's see if I get my first ever stuck mash eh boys:

Summer Dunkelweizen

Fermentables
Ingredient Amount %
German Wheat Malt 4.866 kg 90.9 %
German Caramel Pils 0.243 kg 4.5 %
German Carafa II 0.243 kg 4.5 %

Hops
Variety Alpha Amount IBU Form When
Czech Saaz 3.0 % 50 g Loose Whole Hops In Mash

Wort Volume Before Boil: 28.00 l Wort Volume After Boil: 22.40 l
Volume Transferred: 21.00 l Water Added To Fermenter: 2.00 l
Volume At Pitching: 23.00 l Volume Of Finished Beer: 21.50 l
Expected Pre-Boil Gravity: 1.045 SG Expected OG: 1.052 SG
Expected FG: 1.013 SG Apparent Attenuation: 73.9 %
Expected ABV: 5.1 % Expected ABW: 4.0 %
Expected IBU (using Tinseth): 11.0 IBU Expected Color (using Morey): 18.2 SRM
BU:GU ratio: 0.21
Mash Efficiency: 75.0 %
Boil Duration: 90.0 mins
Fermentation Temperature: 18 degC

Other Ingredients
Ingredient Amount When
Protafloc 5g 15 mins from end
Servomyces 1 capsule 10 mins from end

Yeast
White Labs WLP300-Hefeweizen Ale

Mash Schedule
Mash Type: Full Mash
Schedule Name: Single Step Infusion (66C/151F) w/Mash Out

[Barley Water]

Why would you want to put protafloc in there, the beer is supposed to be cloudy so I would avoid anything that would tend to make it clear. I also think that the yeast nutrient is not needed, WLP300 is some wild stuff and I have yet to have problems with it doing the job. Actually, I underpitch on purpose so that I get the maximum ester and phenol production possible.

By the way, our German buddies max out at around 70% wheat malt and 50% is the legal minium by law over in the Fatherland. I would chuck in a fair amount of Munich malt for a Dunkelweizen and maybe even a touch of Melonodin malt, it will make the beer maltier, think a wheat version of a Munich Dunkel. If you get to 100% wheat like that I can almost guarantee that you will end up with a stuck mash, in fact I use about a pound of rice hulls just to keep that from happening. I would also do a double decoction but then I'm a crazy yank, what can I say?

[Gricey]

Cheers for the advice. Not sure I have any other malts around and I've done my order now, I'll have a look. We shall see!

[Gricey]

Hmm, fresh from the other recipe I have 710g of Munich and around 2kg of Pilsner. Swapping out the wheat for the munich would reduce the percentage a bit. What do you think?

[Barley Water]

Do it, you won't be sorry. The maximum amount of wheat malt I use is 70%, you can go lower without a problem.

[Gricey]

Straight swapping the munich for the wheat we get

77.63 wheat
4.5 carafa II
4.5 carapils
7.1 munich

[jimmiec]

That amount of wheat is craziness. Curious how the mash goes and the flavor improvement. May need a decoction or 2 to breakdown the wheat some and help with sparging.

[Gricey]

Decoction, gah. I have a Ritchies mashing and sparging bag, I may somehow line the bottom of my MT with that as some kind of anti-stick aid. But you reckon I'll have trouble extracting the sugars? The maltmiller page for the weyermann malt I bought here: http://www.themaltmiller.co.uk/index.ph ... ductId=255 says that it can comprise 80% of the grist... so surely my above post where I throw in the munich will be fine

[jimmiec]

You going to do a brew in a bag (BIAB)? It will probably convert just fine with the munich, which I take they are referring to on the website. Just never heard the results of a recipe with that much wheat.

[Gricey]

No, a standard coolbox/manifold jobby, just thinking put the bag in the bottom to cover the manifold if its as bad as everyone says...

[Befuddler]

No, a standard coolbox/manifold jobby, just thinking put the bag in the bottom to cover the manifold if its as bad as everyone says...

Don't do that.. The bag will get sucked into the manifold slots and clog it. Go on, ask me how I know.

[Gricey]

Lol! Top man. I'm just gonna go with the manifold. How hard can it be?

[zgoda]

Last weekend brewed dunkelweizen with 65% wheat and 35% barley, had no problems with filtration. Once I had 70% wheat, again with no problems. If in doubt put some rice or buckwheat hulls into mash before sparging.

[Gricey]

Don't have any hulls and likely brewing tomorrow...

[Gricey]

Ok, the recipe now is:

71.3% Weyermann German Wheat Malt
14.4% German Munich Malt
10.2% German CaraPils
4.1% German Carafa II

Hopped to 12.4IBU with 30g of 3.8% Czech Saaz for the whole 90 minute boil

Water adjusted to GW 'General Purpose' profile

No whirlfloc or servomyces

WLP300 built from a starter on a stir plate