Czech Scientists Develop Climate-Resilient Hops Amidst Drought Challenges
‘Saaz is our gold’: the Czech scientists breeding hops that can survive a hotter Europe

Image: The Guardian
Czechia, renowned for its beer, faces challenges in hop cultivation due to rising temperatures and droughts. Scientists at the Hop Research Institute are breeding new drought-resistant varieties like Saaz Shine and Saaz Comfort to ensure the future of Saaz hops, vital for the country's beer industry.
- 01Czechia's Saaz hops are crucial for its beer industry, with 80% of yields exported.
- 02Drought and heat have decreased Saaz hop quality, impacting brewers' production consistency.
- 03Only 25% of Czech hop farms are irrigated, leaving them vulnerable to climate changes.
- 04New hop varieties like Saaz Shine are being developed to withstand higher temperatures and less water.
- 05The original Saaz variety remains irreplaceable, valued as 'gold' by breeders.
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Czechia, the world's leading beer consumer per capita, is grappling with severe droughts and heatwaves that threaten its iconic Saaz hops, essential for brewing. Scientists at the Hop Research Institute are pioneering climate-resilient hop varieties, including Saaz Shine and Saaz Comfort, which are showing promise in adapting to the changing climate. Dr. Vladimir Nesvadba, the institute's leading breeder, emphasizes the importance of these new cultivars, which are already being tested by local brewers. The challenges posed by climate change are significant; only 25% of Czech hop farms utilize irrigation, making them particularly susceptible to irregular rainfall. This has resulted in reduced yields and lower alpha acid levels, which affects the bitterness and flavor of beer. As brewers like Jim Barrie from BarrieHaus Beer Co report difficulties in maintaining consistency due to these changes, the development of drought-resistant hops becomes critical. The unveiling of a new lager made from Saaz Shine has sparked excitement among beer enthusiasts, showcasing the potential for innovation even within traditional brewing practices. Despite these advancements, the original Saaz variety remains irreplaceable, symbolizing the rich heritage of Czech brewing.
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The decline in Saaz hop quality and yields directly affects Czech breweries, leading to variations in beer flavor and production challenges.
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