Serving custom · Franconia
Serving from the wooden cask
A few Franconian houses still broach an oak cask by hand and pour by gravity, which gives softer carbonation than any pressurised system.
The Schlenkerla tavern in Bamberg states that its smoked beer is still tapped exclusively from oak casks, in the old manner, and it is not alone in Franconia in doing so. The cask is broached with a mallet, and the beer runs out under its own weight rather than being pushed by gas.
The effect is on texture rather than flavour from the wood. These casks are pitch-lined, so they are not oak-ageing vessels in the sense a barrel-aged stout uses; what changes is carbonation, which is lower and softer than a pressurised keg gives, and temperature, which drifts up gently through the life of the cask.
It is genuinely a heritage practice rather than everyday German service — most beer in Bavaria comes from steel under gas, and the houses that keep wood do it deliberately.
How it works
The cask is set
An oak cask is stillaged behind the bar, in the room, where the tapping can be seen and heard.
Broached by mallet
A tap is driven in by hand in one blow. A new cask is opened in front of the room several times an evening.
Poured by gravity
Beer runs from the tap under its own weight. No gas is applied, so the carbonation in the glass is only what fermentation left.
What it does
BeerHQ’s rule for anything ritual: name the mechanism or say it is convention. These are the mechanisms.
- Gravity dispense adds no gas, so carbonation is lower and the beer reads as softer and rounder than the same beer from a pressurised keg.
- The casks are pitch-lined, so the wood does not flavour the beer — this is a dispense difference rather than a barrel-ageing one, and saying otherwise would be inventing a mechanism.
- An opened cask warms and oxidises over hours, so houses that do this open small casks often rather than one large one slowly.
What people get wrong
Beer from a wooden cask tastes of oak.
These casks are lined with brewer’s pitch precisely so that they do not. The difference you can taste is carbonation and temperature, not wood — which is the opposite of what a barrel-aged beer is doing.
Questions
Does Rauchbier from a wooden cask taste different?
Yes, but not because of the wood. The casks are pitch-lined so no oak character reaches the beer; what changes is that gravity dispense adds no gas, so the beer is less carbonated and reads as softer and fuller than the same beer from a pressurised keg.
Where it is practised
The beers it is performed on
Connected
The room: Bierkeller
The dispense: Cask, gravity-dispensed
Last reviewed 2026-08-29.