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

Dr. Ron Beatson is the retired hop breeder who built a storied career at Plant & Food Research developing some of the most popular New Zealand hop varieties today, and Dr. Tom Shellhammer is the Oregon State University professor whose research into hop oils, hop terroir, hop-growing techniques, and more have made an indelible impact on the Pacific Northwest hop industry. Shellhammer is currently on a four-month sabbatical in New Zealand, studying the similarities and differences between U.S. and New Zealand hop practices, and presented at both the NZ Hops Harfest event (with Dr. Ron Beatson) and on his own at the Freestyle Hops Hāpi Symposium.

In this episode, we brought the two together to discuss:

• the hierarchy of impacts from genetics through terroir and agronomics
• differences in hops within a farm or area versus differences between areas
• the genesis of onion and garlic notes in hop aromas and flavors
• sources of inconsistency in a hop variety
• harvesting dynamics of Nelson Sauvin
• cover crops in hop fields to promote soil health
• multiple archetypes for hop varieties
• the source of “diesel” and “dank” notes in hops and the crossovers with cannabis
• thiol and terpene interactions in aroma formation over individual oil content
• impact from lack of disease in New Zealand hop fields
• soil and localized environmental impacts on New Zealand hop cultivation

And more.

This episode is brought to you by:

G&D Chillers (https://gdchillers.com): G&D Chillers Elite 290 Micro-series line utilizes a natural refrigerant, features a more compact design with variable speed fans, and offers near-zero global warming potential. The future of sustainable refrigeration is here! Learn more about G&D’s Elite 290 line and visit GDCHILLERS.COM.
Berkeley Yeast (https://berkeleyyeast.com). Berkeley Yeast bioengineers ordinary strains and make them extraordinary—enhancing the flavors you want and eliminating the ones you don’t. Visit berkeleyyeast.com to learn more and start brewing with science on your side.
Old Orchard (https://www.oldorchard.com/brewer): As breweries expand beyond beer into other segments like mocktails and CBD beverages, Old Orchard is here to help. Whether trending flavor additions or nostalgic favorites, the next best thing is around the corner at Old Orchard. More information and free samples are waiting at oldorchard.com/brewer
Indie Hops (https://indiehops.com) Taste the modern flavors of Indie Hops at CBC, this year in Indianapolis. Join Indie in Indy for 14 incredible collab beers. Check out the full CBC beer lineup at www.indiehops.com and plan to stop by their booth #3122.
Ss Brewtech (https://www.ssbrewtech.com) Featuring a laser-welded cooling jacket for efficient and precise temperature control, an innovative silicone racking arm, and a carbonation stone that allows you to carbonate right in the fermenter, Unitank 2.0 is engineered to help you get the most out of your fermentations! Visit Ss Brewtech.com to learn more!
Isuzu Trucks (https://www.isuzucv.com) Whether you are looking for a self-distribution solution or one to deliver supplies, there is an Isuzu truck that will fit your needs. Go to isuzucv.com to check out their impressive lineup or visit an Isuzu dealer today to find out why now, more than ever, Isuzu trucks are the trucks you trust for the work you do!
Cytiva (https://info.cytivalifesciences.com/sample-request-brewing.html) Protecting your beer’s highest quality is crucial to maintain its unique taste and prevent spoilage organisms, and microbiological testing plays a vital role in this process. Cytiva offers a comprehensive portfolio of laboratory filtration products designed for both lab and production-floor use.
Brewery Workshop (https://breweryworkshop.com) If you’re launching a brewery or acquiring an existing one, consider our brewery workshop and new brewery accelerator, September 14 through 17th in Fort Collins, Colorado. Visit breweryworkshop.com for more information and to secure your spot.