Märzen for Kiwis, 5L Glass Carboy Beer Recipe | BIAB Oktoberfest/Märzen | Brewer's Friend
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Märzen for Kiwis, 5L Glass Carboy

172 calories 18.5 g 12 oz
Beer Stats
Method: BIAB
Style: Oktoberfest/Märzen
Boil Time: 45 min
Batch Size: 4.5 liters (fermentor volume)
Pre Boil Size: 8.81 liters
Post Boil Size: 4.5 liters
Pre Boil Gravity: 1.026 (recipe based estimate)
Post Boil Gravity: 1.052 (recipe based estimate)
Efficiency: 75% (brew house)
Source: Mike Dilger
Calories: 172 calories (Per 12oz)
Carbs: 18.5 g (Per 12oz)
Created: Monday November 10th 2025
1.052
1.014
5.0%
26.4
13.3
5.4
11.85
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
320 g Gladfield - German Pilsner Malt320 g German Pilsner Malt 3.95 / kg
1.26
36.3 2.03 31.8%
340 g Weyermann - Munich Type II (Dark)340 g Munich Type II (Dark) 4.95 / kg
1.68
37 10 33.8%
160 g Weyermann - Caramunich Type 2160 g Caramunich Type 2 5.95 / kg
0.95
34 45 15.9%
80 g Maltodextrin80 g Maltodextrin 6.95 / kg
0.56
39 0 8%
45 g Weyermann - Acidulated45 g Acidulated 7.95 / kg
0.36
27 3.4 4.5%
60 g Weyermann - Melanoidin60 g Melanoidin 5.95 / kg
0.36
34.5 27 6%
1,005 g / 5.17
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
11 g Hallertau Mittelfruh11 g Hallertau Mittelfruh Hops 0.11 / g
1.21
Pellet 3.75 Boil 45 min 26.41 100%
11 g / 1.21
 
Yeast
Fermentis - Saflager - German Lager Yeast W-34/70
Amount:
0.50 Each
Cost:
10.95 / each
5.48
Attenuation (avg):
83%
Flocculation:
High
Optimum Temp:
9 - 22 °C
Starter:
No
Fermentation Temp:
15 °C
Pitch Rate:
0.35 (M cells / ml / ° P) 20 B cells required
5.48 Yeast Pitch Rate and Starter Calculator
Priming
CO2 Level: 2.44 Volumes
 
Target Water Profile
Papaioea Park Tap, Palmerston North
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
38 7 15 21 12 120
Mash Chemistry and Brewing Water Calculator
 
Notes

This is small enough to cook in my 11L cladded stainless steel pot on my induction stove (NZ$35 at K-Mart)

Note the non-standard 45 minute boil time. This is so the original water volume doesn't overflow my pot.

I strain grains through two large sieves sold as honey sieves.

I ferment in a 5L glass carboy, in a drinks fridge set to 15 C.

W-34/70 yeast is known for handling high temperatures without bad flavors. Brew temp can run from 12C - 18C. I use a drinks fridge and hit 15C.

I'm bottling to 375ml and 750ml bottles, but my future plan is kegging to a 5L mini keg that I can store in my fridge (for any dose I desire with no waste, full carbonation, no oxygenation).

My target is to mimic Maerzen from Sudwerk, U.C. Davis, early 1990s, before the original German brewmaester was deported. Of course my memory is not good enough to know even if I'm getting close. Any amber malty beer with a big mouth feel and no funny tastes is going to satisfy me.

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  • Public: Yup, Shared
  • Last Updated: 2025-11-17 04:35 UTC
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mikedilger 11/10/2025 at 05:35pm
This is just me, new to the website, new to brewing even, using the calculator to try to figure out a recipe.


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