S&D Podcast Episode 41: John D.E. Jeffery Wants You to Balance Science and Intuition When Crafting Spirits

As a journeyman master distiller and now a consultant, Johnny Jeffery has left his mark on American craft spirits and learned from unusual experiences along the way. Here, he shares some of his best advice for craft distillers trying to succeed today.

Molly Troupe Sep 17, 2025 - 3 min read

S&D Podcast Episode 41: John D.E. Jeffery Wants You to Balance Science and Intuition When Crafting Spirits Primary Image

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John D.E. “Johnny” Jeffery’s journey into distilling began after a trip to Poland inspired him to make nalewka, a traditional infused liqueur. It’s a journey that’s taken him from Chicago and Michigan State University to craft distilleries such as Death’s Door in Wisconsin, Sante Fe Spirits in New Mexico, and Nevada’s Bently Heritage Estate—all of which he helped to launch.

Along the way, he’s embraced a collaborative approach among craft distillers, emphasizing the need to share knowledge so that everyone can make better, more compelling spirits. He continues that work today, advising small distilleries on how to pay attention to customer feedback and create meaningful experiences while maintaining creative traditions.

In this episode with host Molly Troupe, Jeffery also discusses:

  • the unusual experience of building a prison still for a California death-row case
  • the importance of having a skilled mechanic in the distillery
  • how sound and music can help identify problems in the distillery
  • balancing intuition with science in R&D projects and whiskey-blending
  • the importance of customer feedback to refining products
  • how storytelling connects the maker with the product and those who enjoy it
  • maintaining authenticity when scaling up

And more.


G&D Chillers understands that each distillery’s chilling requirements are unique. On every distillery project, G&D offers the front-end design and engineering your team needs at no cost to you. Sid Dilawri from Filibuster Distillery says, “From the design and engineering to installation and start-up, G&D was easy to work with. We’ve had great customer service since commissioning our chiller, and I’d highly recommend them for any distillery system.” Reach out for a quote today at gdchillers.com.

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With a Bachelor degree in Chemistry (with an emphasis in forensics) and a Master degree in Brewing and Distilling from the legendary Heriot Watt University, Molly Troupe uses her education and experience to create products focused on localized ingredients and masterful flavor combinations. As Master Distiller and Partner at Freeland Spirits in Portland, Oregon, she has released six different products ranging from gin to whiskey to canned cocktails.

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