Hop
Saaz
The defining hop of Czech pale lager: delicate, spicy and floral, with an exceptionally soft bitterness.
Also known as Žatec, Zatec, Saazer, Czech Saaz.
Saaz is a landrace variety grown in the Žatec region for centuries, and holds protected designation status there. Its very low cohumulone is the usual explanation offered for its notably smooth bitterness — a widely-held view in the trade, though the mechanism is less firmly established than the folklore suggests.
It is used at high rates in Czech brewing. A Bohemian pale lager can carry 35–45 IBU of Saaz and still taste rounded, which is a combination of the hop and the very soft local water.
Aroma and flavour
Descriptors are impressions rather than analytical results. BeerHQ rates this characterisation as well established.
Belongs to
Analysis
| Alpha acid | 2–5% |
|---|---|
| Beta acid | 4–6% |
| Cohumulone | 23–26% |
| Total oil | 0.4–1 ml/100 g |
| Purpose | aroma |
| Origin | Czechia |
| Storage stability | poor |
How it is used
- Bittering (early boil). Added at or near the start of the boil, where long exposure isomerises alpha acids into bitterness and drives off aroma.
- Late boil. Added in the last few minutes, retaining more aromatic oils while adding modest bitterness.
- Traditional late lager hopping. Continental practice of late kettle additions of noble varieties for a fine, spicy-floral character.
If you like Saaz
Hops with comparable character. Similarity and substitutability are different questions, so each entry says which it is: a hop can smell alike and still change the beer if its alpha acid is far off.
Lublin 3–5% alpha · editorial
A Polish landrace closely related to Saaz.
Not the same: lacks the earth and wood of Saaz.
Close enough in both aroma and alpha acid to swap in a recipe.
Tettnanger 4–6% alpha · editorial
A comparable noble spice, slightly more floral.
Not the same: lacks the earth and wood of Saaz.
Close enough in both aroma and alpha acid to swap in a recipe.
Hersbrucker 2–5% alpha
Shares noble spice, floral, herbal with Saaz; an aroma variety at a comparable alpha acid.
Not the same: lacks the earth and wood of Saaz.
Close enough in both aroma and alpha acid to swap in a recipe.
Strisselspalt 2–4% alpha
Shares noble spice, floral, herbal with Saaz; an aroma variety at a comparable alpha acid.
Not the same: lacks the earth and wood of Saaz.
Close enough in both aroma and alpha acid to swap in a recipe.
Hallertauer Mittelfrüh 3–6% alpha
Shares noble spice, floral, herbal with Saaz; an aroma variety at a comparable alpha acid.
Not the same: lacks the earth and wood of Saaz.
Close enough in both aroma and alpha acid to swap in a recipe.
Straight substitutes
Close enough in both character and alpha acid to swap at a similar weight. Substitution is directional and imperfect — these are the nearest available options, not equivalents.
- Lublin — A Polish landrace closely related to Saaz.
- Tettnanger — A comparable noble spice, slightly more floral.
- Hersbrucker — Shares noble spice, floral, herbal with Saaz; an aroma variety at a comparable alpha acid.
- Strisselspalt — Shares noble spice, floral, herbal with Saaz; an aroma variety at a comparable alpha acid.
Used in
- Czech pale lager
The Czech everyday lager: lower in strength than the premium version but keeping the soft bready malt and generous Saaz hopping.
- Czech premium pale lager
The original pale lager: rich bready malt, generous Saaz hopping and a rounded bitterness that soft Bohemian water makes possible.
- Czech amber lager
A Bohemian amber lager balancing caramel malt against Saaz hop character, sitting between the pale and dark Czech beers.
- Czech dark lager
A dark Bohemian lager richer and sweeter than its German counterparts, with caramel and light roast over a soft body.
Questions
Why does Saaz go stale so quickly?
Its alpha acids degrade unusually fast in storage, and its aroma compounds are volatile. Vacuum-packed, refrigerated pellets keep far better than loose cones at room temperature, and old Saaz loses its delicacy before it loses its bitterness.
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.
Saaz is a low-alpha variety with a high humulene fraction relative to myrcene, which is the compositional basis of the delicate herbal and floral character associated with Bohemian pale lager.
Backed by a source
Sources: For the Love of Hops — print; Hop Research Center Hüll variety data