Saaz and German Tettnanger are related aroma-hop choices for a delicate lager, but a shared “noble” description does not make them identical. Choose the origin and aroma you want, then use the actual packet’s alpha-acid value to calculate a bittering change. For late additions, compare aroma separately rather than treating an alpha-acid calculation as a flavour match.
What is the difference between Saaz and Tettnanger?
BarthHaas identifies Saazer as a Czech landrace associated with Czech pilsner. Its profile describes spice and wood alongside floral and sweet impressions. Yakima Chief Hops places Tettnanger in the Saaz group, originating around Lake Constance in Germany, with spice, flowers, tea and wood among its aroma descriptors.
Those overlapping descriptions are useful starting points. They do not establish that every taster will prefer one, or that replacing Saaz will make a beer a fixed percentage less authentic. This guide compares supplier information and recipe calculations; it reports no BrewMyBeer tasting trial.
| Question | Saaz / Saazer | German Tettnanger |
|---|---|---|
| Identity in the cited profile | Czech aroma landrace | German landrace in the Saaz group |
| Supplier alpha-acid reference | 1.4–7.5%, BarthHaas | 2.5–5.5%, Yakima Chief Hops |
| Supplier total-oil reference | 0.2–1 mL per 100 g | 0.5–0.9 mL per 100 g |
| First recipe decision | Use when the identified Czech hop is central to the recipe | Consider when the identified German hop fits the intended aroma |
These are reference ranges from different suppliers, not specifications for two packets on your workbench. BarthHaas explicitly warns that crop years can vary widely. The overlap also means “Tettnanger is always stronger than Saaz” is an unreliable shortcut. Check your lots before calculating.
Can Tettnanger replace Saaz in a bittering addition?
It can be a candidate when a changed hop character is acceptable. First separate the recipe’s early bittering charge from its late flavour and aroma additions. Under the simplified assumption that product form, wort conditions, timing and utilisation stay the same, keep the alpha-acid charge constant:
Replacement mass = original mass × original alpha % ÷ replacement alpha %.
For an illustrative 30 g Saaz charge labelled 3.2% alpha, a Tettnanger packet labelled 4.8% gives 30 × 3.2 ÷ 4.8 = 20 g. Both additions contain a nominal 0.96 g of alpha acids before brewing losses. These are hypothetical packet values, not a recipe dose or a measured IBU result.
If you change the addition time or switch between whole hops and a concentrated product, the simple ratio no longer holds all assumptions constant. Use the bittering hop substitution calculator as a planning aid and retain the original and replacement inputs.
Why the same calculation does not preserve aroma
Reducing the replacement from 30 g to 20 g changes the amount of hop material as well as the variety. A matched nominal alpha charge says nothing about an identical sensory result. Total oil is another measurement, and equal total-oil numbers do not describe an identical mixture of aroma components.
For an aroma comparison, write a separate question: “Which of these two lots better fits the aroma I want at the same addition rate?” Keep the base recipe and treatment consistent. Record the varieties, origins, product forms, rates and addition conditions. Label the result as your observation of those lots, rather than a universal verdict about every Saaz or Tettnanger crop.
Read the packet before buying or substituting
- Check the full variety name, growing origin, crop year and supplier.
- Record the lot’s alpha-acid value; do not copy a generic range into a recipe field.
- Check the product form and current storage instructions.
- Keep the bittering calculation and the aroma comparison on separate lines.
A packet labelled Tettnang from another origin should not automatically inherit the German product profile cited here. Ask the supplier to identify it. You do not need an invented genealogy or a claim about “90% accuracy” to make a clear substitution decision.
Quick challenge: adjust the bittering charge
A recipe uses 24 g at 3.5% alpha. The replacement lot is 4.2%. With the same utilisation assumptions, what mass preserves the nominal alpha charge?
Answer: 20 g. Calculate 24 × 3.5 ÷ 4.2. This does not establish the same aroma or an exact finished-beer bitterness.
For a wider choice of replacement hops, use our hop substitution guide. Save the lots, calculation and planned comparison in your beer lab notes.
Editorial note: sources checked 5 October 2026. Supplier ranges and descriptions are attributed references; the examples are calculations, not brewed or tasted results.