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Craft Beer & Brewing Magazine Podcast

406: Dr. Tom Shellhammer and Dr. Ron Beatson Discuss the Impacts of Genetics, Terroir, and Pick Timing on New Zealand Hops

Mar 28, 2025
Dr. Ron Beatson, a retired hop breeder known for his work at Plant & Food Research, joins Dr. Tom Shellhammer from Oregon State University, who studies hop oils and terroir. They explore how genetics and terroir influence hop flavors, uncovering the origins of aromas like onion and garlic. The dynamics of harvesting Nelson Sauvin and the use of cover crops for soil health are discussed, alongside unique aroma profiles and their connections to cannabis. This engaging chat highlights the significant role of New Zealand in the global hop landscape.
01:13:19

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Quick takeaways

  • The genetic makeup of hop varieties fundamentally determines their flavor profiles, making genetics essential for brewers to understand hop characteristics.
  • Environmental factors like terroir, soil composition, and UV exposure significantly influence the unique aromas of New Zealand hops, showcasing regional differences.

Deep dives

Understanding Hop Terroir

The concept of terroir in New Zealand hops plays a significant role in influencing the unique flavors and aromas that characterize these hops. Factors such as soil composition, geographic location, and climate contribute to distinct expressions of hop qualities. For example, soils in the Motueka area differ markedly from those in the Tapuera Valley, impacting how hops mature. These variances mean that even hops grown in close proximity can exhibit different sensory profiles due to their specific growing conditions.

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