Please, please, please, a recipe for Bitterøl!

I brewed Wiibroe and Thor, but didn't dare yet to delve into the bretty realm of Gammeltøl (nowhere to get sweaty-horsey Bretts, have only cherry-ish which I think won't go well with the style).
If you want to make it more Oud Bruin, I think it would be fine. It is after all a farmhouse ale, so do as you please
BITTERØL
Sadly the author only provides a single recipe for this style of beer and little production information. It is the black sheep of sections in the book. But from what we get we can make a template for the style, which you can formulate your recipe around. Here is the description, translated.
Bitterøl is a dark ale with a powerful malty flavour and distinct bitterness. The normal Bitterøl had about the same original extract as Hvidtøl nr.1, but was more attenuated and therefore had a higher alcohol content [...]. The characteristics of Bitterøl is the darkbrown colour, made by using Hvidtmalt and a bit of roasted malt.
Before we go into the ingredient description lets tackle what is meant by the Original Extract as Hvidtøl nr. 1. In Denmark the categorisation for alcohol strength was always defined by taxation and the names of the categories provided. Think of them as the English and Scottish way of making a distinction between the same style of beer based on ABV. Adding to this confusion is the process of partigyling, which was an imported technique from the UK which all Danish Hvidtøl Breweries used to make the most out of their mash. So they would often start with one beer they were supposed to make and then write each subsequent beer afterwards they made in the same journal entry. But assuming you are not partigyling, the classifications for Bitterøl go as shown in the table below.
Name | Original Extract (in SG) | Final Extract (in SG) | ABV | Attenuation Rate |
Dobbelt Bitterøl | 1.055 | 1.017 | 5.0% | 68.0% |
Bitterøl nr. 1 | 1.048 | 1.017 | 4.1% | 63.7% |
Bitterøl nr. 2 | 1.036 | 1.012 | 3.2% | 66.0% |
Bitterøl nr. 3 | 1.028 | 1.010 | 2.4% | 63.7% |
These numbers are taken from my personal little collection of old documents copies and what is presented in the book.
MALTS
Traditionally a specific style of malt was used called Hvidtmalt (Lambic Style Malt, Wind Malt, or Air Dried Malt) for these Danish ales. If you are able to get your hand on it, try and make the beers with this type of malt. Sadly it is not produced here in Denmark any more, so Danish homebrewers have a hard time making these older style of beer.
As breweries got their hands on indirect wood ovens we begin to see darker malts take over in the production of ales in Denmark. In the beginning this was called Brunmalt (Brown Malt). Later as the brewers and maltsters became better at controlling the kilning it emerged as a Munich Malt with some extra toast to it.
Roasted barley or malt has always been part of the style. Mainly used to colour correct the beer.
From here you have two options for your malt bills. The Wind Malt Bill and the Pils-Munich Bill.
The Wind Malt Bill
- 96-97% Wind Malt.
- 3-4% Roasted Barley or Malt (800-1300 EBC).
The Pils-Munich Bill
- Up to 50% Pilsner.
- Up to 50% Munich Light (12-16 EBC).
- Up to 4% Roasted Barley or Malt (800-1300 EBC).
These malt bills will get you to around 40-48 EBC, all depending on the Roasted Malt and Munich malt you decide on. As a bonus and something worth trying out, is this third bill option.
The Brown Malt Bill
- Up to 45% Pilsner.
- Up to 45% Munich Light (12-16 EBC).
- Up to 33% Brown Malt (175-200 EBC).
HOPS
As with a lot of the other danish beers, low alpha acid hops are used. They are there to preserve the beer and provide bitterness, not for aroma and flavour. However, I think depending on your malt bill you should pick hops that can stand up to the malt. Just make sure they are following the characteristics described below.
- AA% of 4 or below.
- Average 5grs/l, adjust according to your AA%.
- Cold (Dry) hopping is appropiate.
- Floral, Herbal and Noble flavour and aroma is traditional.
- Stone Fruit, Apple and Pear flavour and aroma is appropiate.
- Citrus and Tropical flavour and aroma is inappropiate.
Some recommendations are Spalt, Saaz, Mittelfrueh, Hersbucker, Perle, Tettanger, Lublin, Novotomyskie, Bobek, Celeia, Styrian Golding, EKG and Fuggle.
YEAST
If you look back at the table, you will notice the low attenuation being a characteristic. Danes have always preferred sweeter beers with more of a mouthfeel. Therefore pick your favourite low attenuating ale yeast. Light esters and phenolics are appropiate.
Some recommendations are Wyeast 1318, Wyeast 1099, WLP023, WLP002 and Safale S-33.
BOOK RECIPE FOR 25 LITER DOBBELT BITTERØL FROM BRYGGERIET RABESHAVE, 1893
6.3kgs of Malt (
Pils-Munich)
0.25kg of Roasted Barley
125grs of Hops + Handful for Cold Hopping (
The handful should be around 1-2 gr / liter)
Original Gravity 1.055
Final Gravity 1.017-1.023
PROCESS
Luckily this beer is easy to brew, as Danish Hvidtøl Breweries tended to be more simplistic compared to the Danish "Bavarian" Breweries. This was often due to equipment and financial limitations which forced a different approach to making quality beer.
Mashing Schedule:
- Infusion mash, higher end of the rest @ 65-67C for 60-90 mins.
- Optional: mash out @ 75-78C for 10 mins.
You can easily do a standard 1 hour boil. The hopping schedule is simple as well:
- 60-100% of the hops @ beginning of boil.
- Optional: up to 5 grs of carragen moss @ 10 mins before boil end.
- 0-40% of the hops @ flameout/hopstand/whirlpool.
Fermentation profile is as follows:
- @ room temperature until fermentation has finished.
- Cold Crash @ 4C for 3-6 days
- If you are cold hopping and kegging, add it as you rack it into its serving vessel.
- If you are cold hopping and bottling, add it while it fermentation is most active.
It is meant to be drank young, so no need to wait until clear.