Pale lager
Kellerbier
Unfiltered, gently carbonated lager served young from the cellar, with a soft yeasty fullness filtration removes.
- Strength
- 4.6–5.6% ABV
- Bitterness
- 20–35 IBU
- Colour
- Gold to amber
- Serve at
- 7–10°C
Also known as cellar beer, Zwickelbier, ungespundet.
Regional. A living local tradition that no style body has formally codified.
Kellerbier is defined by how it is handled rather than by a recipe: unfiltered, often unpasteurised, conditioned at low pressure so it finishes lightly carbonated, and served fresh. It can be pale or amber.
The result is rounder and softer than the same beer filtered, with a faint yeast-derived breadiness and noticeably less carbonic bite. Zwickelbier is a closely related term; usage varies between breweries and the two are frequently interchangeable in practice.
Because it is defined by handling rather than recipe, freshness is the entire question — this is beer meant to be drunk close to where it was made, and an old or heavily carbonated example has lost the soft, low-condition fullness that is the whole point. A good one tastes rounder and breadier than the same brewery's filtered lager, with noticeably less carbonic bite.
Questions this page answers
- what does kellerbier taste like — How it tastes
- kellerbier abv — Measurements
- kellerbier food pairing — What to eat with it
- kellerbier serving temperature — Serving
- how long does kellerbier last — Freshness and storage
- styles similar to kellerbier — If you like this, try
- how to brew kellerbier — How it is made
- what beer is an example of kellerbier — Beers to try
- is chill haze normal in kellerbier — Characteristics that may be expected here
How it tastes
BeerHQ’s own comparative scale, not a measurement. Each bar is a range because a style is a span of real beers rather than one beer.
Appearance and character
| Colour | Gold to amber |
|---|---|
| Clarity | hazy |
| Head | White to off-white, soft, moderate |
| Fermentation | Bottom-fermented (lager). Fermented cool with Saccharomyces pastorianus, which settles out, then conditioned cold. The cooler process suppresses yeast-derived fruitiness, leaving malt and hop character exposed. |
| Origin | Germany — Franconia (Franconian, from the practice of drinking lager unfiltered from the cellar it matured in) |
Measurements
Conventional ranges published by style bodies, not a specification. IBU measures iso-alpha acids in a lab and does not track perceived bitterness — compare it against the sensory scale above rather than reading it as a flavour rating.
| Measurement | Typical range |
|---|---|
| ABV | 4.6–5.6% ABV |
| IBU | 20–35 IBU |
| Colour | Gold to amber — 4–12 SRM, 8–24 EBC. That is a wide range: two examples of this style can look plainly different from each other in the glass. |
| Original gravity | 1.045–1.055 |
| Final gravity | 1.008–1.014 |
| Carbonation | 1.8–2.3 vol CO₂ |
Classified by BJCP-2021 as Kellerbier (close fit). BeerHQ maintains its own taxonomy and records how it maps onto others rather than adopting any one of them.
What goes into it
| Hops | Hallertauer Mittelfrüh, Spalt |
|---|---|
| Malt | Pilsner malt, Munich malt |
| Yeast | German lager yeast |
Serving
| Temperature | 7–10°C |
|---|---|
| Glass | Stein, Willi Becher |
| Dispense | Cask, gravity-dispensed — Cask beer poured straight from the tap under gravity, with nothing between the cask and the glass.Tank beer — Unpasteurised beer delivered fresh to venue tanks — the Czech format that shows a pale lager at its best. |
Freshness and storage
Kellerbier shows best within 14–42 days of packaging. After that it declines in quality rather than becoming unsafe.
Drink fresh. Buy it as young as you can and drink it soon. What makes this beer worth drinking is the first thing to leave it.
- Changes quickly enough that freshness is the dominant quality variable.
Unfiltered and often unpasteurised, so it is at its best within weeks. This is a beer to drink where it is made.
What changes with time
- Flavour decline. The beer is still perfectly sound, but the most volatile parts of its character have faded. Weeks to a few months, fastest in heavily dry-hopped beer.
- Staling. The general, gradual loss of freshness that affects all beer, accelerated sharply by warmth. Months, and roughly twice as fast for every 10 °C warmer.
- Lightstrike. The skunky note that develops when beer is exposed to light through inadequate packaging. Minutes in direct sun; days to weeks under shop lighting.
In the package
- Aluminium can — No light can reach the beer, so lightstrike is impossible in this format. Very low oxygen ingress, which matters for a beer this dependent on hop aroma.
- Brown glass bottle — No format-specific concerns beyond the general advice above.
- Green glass bottle — Light reaches the beer through this glass. Keep it in the dark, and be wary of bottles that have sat under shop lighting.
- Keg — No light can reach the beer, so lightstrike is impossible in this format. Very low oxygen ingress, which matters for a beer this dependent on hop aroma.
Old beer tastes worse; it does not become dangerous. Ethanol, low pH, hop compounds and the absence of oxygen make packaged beer hostile to the organisms that cause foodborne illness. The exception is a compromised package — visible mould at the closure, a pierced or rusted can, a lifted cap — which is a reason to discard the beer regardless of its age.
Guidance, not an expiry date. How a beer is stored matters more than the date printed on it, and staling roughly doubles in rate for every 10 °C. See storage and freshness for the full model.
What to eat with it
- Spicy food
Gentle sweetness and modest strength take the edge off the chilli rather than sharpening it.
- Adobo
Beer and dish carry similar weight, so neither flattens the other.
- Gyoza
Beer and dish carry similar weight, so neither flattens the other.
- Ham
Beer and dish carry similar weight, so neither flattens the other.
- Pad Thai
Beer and dish carry similar weight, so neither flattens the other.
- Tapas
Beer and dish carry similar weight, so neither flattens the other.
Beers to try
Widely-known examples BeerHQ carries as reference points for this style. Not a recommendation list and not ranked — these are the beers that make the category concrete.
If you like this, try
Munich Helles
The filtered, brighter equivalent of the pale version.
Suits you if: You like Kellerbier but want more carbonation. Reason not to: The main shift is more carbonation, which is a small step rather than a change of direction.
Festbier
Same family — both are Pale lager beers.
Suits you if: You like Kellerbier but want more carbonation. Reason not to: The main shift is more carbonation, which is a small step rather than a change of direction.
Vienna lager
Shares a fermentation style with Kellerbier, so the underlying character is related.
Suits you if: You like Kellerbier but want more carbonation. Reason not to: The main shift is more carbonation, which is a small step rather than a change of direction.
Dortmunder Export
Same family — both are Pale lager beers.
Suits you if: You like Kellerbier but want more carbonation. Reason not to: The main shift is more carbonation, which is a small step rather than a change of direction.
Czech premium pale lager
Same family — both are Pale lager beers.
Suits you if: You like Kellerbier but want more carbonation. Reason not to: The main shift is more carbonation, which is a small step rather than a change of direction.
Compare with
- Kellerbier vs German Pils — Kellerbier and German Pils are closer than the comparison suggests. The measurable differences are small — floral is the largest of them — so tradition, strength and what each is brewed for will tell you more than the flavour axes do.
- Kellerbier vs India pale lager — The main difference is citrus: India pale lager has far more of it than Kellerbier. Kellerbier also leads on hop spice; India pale lager on resin & pine and bitterness.
- Kellerbier vs International pale lager — Kellerbier and International pale lager are closer than the comparison suggests. The measurable differences are small — hop spice is the largest of them — so tradition, strength and what each is brewed for will tell you more than the flavour axes do.
- Kellerbier vs American lager — The main difference is bread & biscuit: Kellerbier has far more of it than American lager. Kellerbier also leads on malt intensity and hop spice; American lager on carbonation.
Characteristics that may be expected here
Each of these is treated as a fault in most beer, and in this style it can be part of the character. Intensity and context decide which: a trace that suits the style and an obvious, dominating version of the same thing are not the same finding. Follow the link where you want to work out which one you have.
Chill haze
Several styles are deliberately hazy, and in a New England IPA the haze is engineered from protein, polyphenol and low-flocculating yeast. Chill haze is only a fault where the style calls for brilliant clarity.
Faults to watch for
- Diacetyl — A buttery compound with a very low threshold — normally a sign of rushed fermentation, but traditional at trace levels in some Czech lagers.
- Oxidation — The universal ageing fault: oxygen degrades beer into papery, cardboard-like staleness, and dulls everything that made it good.
- Infection — Unintended microbial growth — which is a fault only because it was unintended, since the same organisms define lambic.
How it got here
Kellerbier is Franconian, and describes how the beer is handled rather than a recipe: lager taken unfiltered and lightly carbonated from the cellar it matured in, historically drunk on the spot. The style name records a local way of serving beer that predates any means of stabilising or filtering it.
How it is made
The steps that shape this style in particular, rather than the ones every beer goes through.
- Diacetyl rest — Raise a fermentation’s temperature near its end so the yeast reabsorbs and reduces the diacetyl it produced earlier.
- Lagering — Store beer cold for an extended period after fermentation to clarify it and produce the clean, rounded character lagers are named for.
Sensory levels are BeerHQ’s editorial abstraction, described as None–Very high on a six-point scale. Measurements are conventional style ranges. Last reviewed 2026-08-15.
Evidence
What BeerHQ knows about this, and how. Every statement carries the state of the evidence behind it rather than being presented flatly as fact.
On Infection
Packaged beer is a hostile environment for human foodborne pathogens: the combination of ethanol, a pH typically between about 3.8 and 4.6, hop-derived iso-alpha-acids with antibacterial activity, near-absent oxygen and dissolved carbon dioxide means no such pathogen is known to survive and grow in it.
Backed by a source
Sources: Brewing: Science and Practice — print; Beer: Tap into the Art and Science of Brewing — print
On Infection
The organisms that do spoil beer — chiefly Lactobacillus, Pediococcus and Brettanomyces — are the same organisms deliberately used to produce sour and mixed-fermentation styles, which is why the identical organism is contamination in one brewery and the product in another.
Backed by a source
Sources: Brewing: Science and Practice — print; Yeast: The Practical Guide to Beer Fermentation — print
On Chill haze
Chill haze consists of complexes between proline-rich proteins and polyphenols that come out of solution when beer is chilled and redissolve as it warms, which is what distinguishes it from permanent haze.
Backed by a source
Sources: Brewing: Science and Practice — print; Beer: Tap into the Art and Science of Brewing — print
On Diacetyl
The buttery or butterscotch character described as diacetyl is 2,3-butanedione, a vicinal diketone formed outside the yeast cell by oxidative decarboxylation of alpha-acetolactate.
Backed by a source
Sources: Beer: Tap into the Art and Science of Brewing, chapter on flavour — print; Brewing: Science and Practice — print
On Diacetyl
Diacetyl has one of the lowest flavour thresholds of any beer compound, detectable by many tasters at concentrations in the region of 0.1 mg/L or below, with substantial variation between individuals.
Backed by a source
Sources: Beer: Tap into the Art and Science of Brewing — print; Technology Brewing and Malting — print
On Diacetyl
A low level of diacetyl is traditional and accepted in some Czech pale lagers and in some Yorkshire and Scottish ales, where it contributes a rounded buttery softness the brewers are not attempting to remove.
Backed by a source
Sources: Tasting Beer (2nd edition) — print; The Oxford Companion to Beer — print
On Diacetyl rest
Raising a fermentation to 16–20 °C near its end accelerates yeast reuptake and reduction of diacetyl, which is slow at lager fermentation temperatures and is interrupted entirely if the beer is crashed cold too early.
Backed by a source
Sources: Yeast: The Practical Guide to Beer Fermentation — print; Technology Brewing and Malting — print
On Diacetyl
Diacetyl reaches beer by two unrelated routes: as a normal fermentation by-product that healthy yeast subsequently reabsorbs, or from bacterial contamination — chiefly Pediococcus — which produces it continuously and cannot be rested out.
Backed by a source
Sources: Yeast: The Practical Guide to Beer Fermentation — print; Brewing: Science and Practice — print
On Hallertauer Mittelfrüh
Hallertauer Mittelfrüh’s susceptibility to wilt drove much of the Hüll breeding programme’s work on disease-resistant successors, which is why several modern German varieties are described in relation to it.
Backed by a source
Sources: Hop Research Center Hüll variety data; For the Love of Hops — print
On Pale lager
Lager denotes a fermentation and maturation process — cool fermentation with S. pastorianus followed by cold storage — rather than a colour, strength or flavour, which is why Schwarzbier, Rauchbier and Doppelbock are all lagers.
Backed by a source
Sources: BJCP Beer Style Guidelines (2021); Technology Brewing and Malting — print
On Lagering
Carl von Linde’s mechanical refrigeration, first installed in a brewery in the early 1870s, freed lager production from dependence on natural ice and cold cellars.
Backed by a source
Sources: Beer: The Story of the Pint — print; The Oxford Companion to Beer — print
On Oxidation
In strong dark beer the same oxidative chemistry produces sherry, port and dried-fruit character that many drinkers actively seek, which is why oxidation is a defect in a fresh pilsner and part of the appeal of an aged barley wine.
Backed by a source
Sources: Tasting Beer (2nd edition) — print; The Oxford Companion to Beer — print
On Oxidation
The wet-cardboard character of stale beer is attributed principally to trans-2-nonenal, a carbonyl formed from lipid precursors and perceptible at extremely low concentrations.
Backed by a source
Sources: Beer: Tap into the Art and Science of Brewing — print; Journal of the Institute of Brewing
On Oxidation
trans-2-Nonenal, a product of lipid peroxidation, is the compound behind the cardboard or papery flavour characteristic of stale beer.
Checked against the source
Source: Wu et al., "Identification of a Protein with Antioxidant Activity that is Important for the Protection against Beer Ageing" (2011), Introduction (Int J Mol Sci 12(9):6089–6103)
On Oxidation
Staling reactions in packaged beer are strongly temperature-dependent, with the conventional working figure being that the rate roughly doubles for every 10 °C increase in storage temperature.
Backed by a source
Sources: Beer: Tap into the Art and Science of Brewing — print; Technology Brewing and Malting — print
On Infection
A compromised package — visible mould at the closure, a pierced or corroded can, a lifted cap or cork — admits organisms the beer’s own chemistry did not exclude, and is the situation in which discarding the beer is the correct response.
Backed by a source
Source: Institute of Brewing & Distilling technical publications
On Lagering
Mechanical refrigeration from the late nineteenth century removed lager brewing’s dependence on cold cellars and natural ice, allowing it to be produced year-round and anywhere.
Backed by a source
Sources: Beer: The Story of the Pint — print; The Oxford Companion to Beer — print
On Pale lager
BeerHQ’s 0–5 sensory bands are an editorial abstraction for comparison and discovery, not a measurement, an industry standard or a laboratory reading, and are stored separately from formal style measurements so the two can never be confused.
BeerHQ’s own reading