458: Tom Nielsen of Emberside Redraws the Boundaries between the Science and the Art of Beer

Through his decades of work in the brewing industry, many spent in R&D and quality at Sierra Nevada, Tom Nielsen has played a critical role in getting craft beer a seat at the broader brewing table. While industry advocacy groups were once dominated by macro brewers pursuing their own narrow goals, Nielsen (and a cohort of craft contemporaries) helped change the bigger conversation, connect ingredient producers and processors with brewer end users, and usher in a new golden age for hops flavor and aroma as well as malting-barley quality. Now Nielsen is tackling a new challenge—scaling down while maintaining the same rigorous approach to quality—as he builds the brewing program for the forthcoming Emberside Brewery in his home state of New Jersey.

In this episode, Nielsen discusses:

• the development of the innovation process at Sierra Nevada
• perfecting Pale Ale and how the brewery prioritized R&D
• factors that improve packaged beer stability
• evaluating quality in crystal malts
• testing malt quality and consistency with equipment such as the farinator
• moving beyond visual inspection for barley and hops
• improving malt flavor with new (and old) barley varieties
• advances in pelletizing that retain more hop punch
• blending science, sensory, and a bit of art to achieve great beer
  

And more.

G&D Chillers
G&D now offers their Elite 290 Micro-series with 5H chillers—bringing even more flexibility to their propane-powered lineup. In fact, they’re building one right now for Red Clover Ale Co in partnership with Efficiency Vermont. It runs on a Natural Refrigerant with near-zero Global Warming Potential—projected to deliver around 10% more efficiency than A2L refrigerant systems. That’s smart sustainability backed by proven engineering and trusted performance. With 24/7 support and remote monitoring, your cold side stays dialed in—day or night. Explore the Elite 290 Micro-series and more at gdchillers.com

Berkeley Yeast
Berkeley Yeast just launched Dry Tropics London! Our best-selling liquid yeast strain, now with all the ease-of-use benefits of dry yeast. Dry Tropics London delivers the soft, pillowy mouthfeel and juicy character you’d expect from a top-tier London Ale strain, but with a serious upgrade: a burst of thiols that unleash vibrant, layered notes of grapefruit and passion fruit. A lot of brewers love the clean passion fruit you get from Tropics, but they don’t want every IPA to be a tropical-fruit bomb. At the dry yeast price point, you can pitch and ditch without breaking the bank. Or, you can co-pitch with your house strain to adjust the intensity of the notes. And with nationwide free shipping, there’s never been a better time to try Dry Tropics. Order now at berkeleyyeast.com and experience the ease and impact of Dry Tropics London Yeast.

PakTech
This episode is sponsored by PakTech—delivering craft-beer multipacking you can trust. Our handles are made from 100 percent recycled plastic and are fully recyclable, helping breweries close the loop and advance the circular economy. With a minimalist design, durable functionality you can rely on, and custom color matching, our carriers help brands stand out while staying sustainable. Trusted by craft brewers nationwide, we offer a smarter, sustainable way to carry your beer. To learn more, visit paktech-opi.com.

Indie Hops Strata Cryo
The multilayered wonders of Indie Hops Strata are now easier than ever for brewers to tap into. Introducing Strata Cryo, in collaboration with Yakima Chief Hops. Whether brewing up a single-hop Strata IPA to wow customers with the depth of flavor this variety delivers or modernizing your flagship IPA to continue setting the highest standards, Strata T99, Strata CGX, Strata HyperBoost, and now Strata Cryo provide the tools for you to create your unique masterpiece. Indie Hops Strata. Life is short. Let’s make it flavorful!

Midea 50/50 Flex
The Midea 50/50 flex is the industry’s first dual compartment three-way convertible freezer. The 50/50 Flex is designed to flex with your life. It can convert to all fridge, all freezer, or half and half with just the touch of a button. Plus, with reversible doors and adjustable storage compartments, you can stay organized no matter your food-storage needs. The 50/50 Flex is also designed to maintain a stable temperature even in non-climate-controlled spaces. So it’s perfect for your garage, man cave, or wherever you need a little more space. Maybe use all 20 cubic feet as a beer fridge! Check out Midea.com/us/ for more information on how to take your beer storage to the next level.

Old Orchard
If your brewery is using fruit juice concentrates, purees, and blends, then why not source everything from a one-stop shop? Old Orchard might be best-known for flavored blends, but if you need 100% purees or concentrates, then Old Orchard can likely help—even with options not listed on their website. Let Old Orchard know what you need at oldorchard.com/brewer.

Brightly Software
Brightly Software, a Siemens company, partners with organizations at every stage of their asset lifecycle journey. Brightly is a complete asset-management and operations software that enhances organizational sustainability, compliance, and efficiency through data-driven decision making. Streamline maintenance, simplify capital planning, and optimize resources with solutions uniquely designed to support long-term goals. Learn more at brightlysoftware.com.

2026 Brewers Retreat
Tickets are on sale now for the annual Craft Beer & Brewing Brewers Retreat August 23–26 in the hop country of Yakima Valley, Washington. There’s nothing like this fantasy homebrew-camp experience, as you brew in small groups led by some of the most inspiring brewers in the world—folks such as Vinnie and Natalie of Russian River, Ben from Breakside, Henry and Adriana of Monkish, Kelsey from North Park, Whitney from Grand Fir, Sean from Lawson’s Finest, and more. This year we’ll be brewing under the bines at Bale Breaker, and it’s sure to be an unforgettable experience. Tickets are on sale now and going fast at brewersretreat.com.