Berkeley Yeast

06/02/2026

Get the recipe for Zweilous, our collab with , which scored a 97 with the Craft Beer and Brewing review panel. Why such a high score? Because it’s super crushable, hella aromatic, and enticingly pale and opaque. This beer is a great example of how the highly skilled brewers at Wandering Monsters can take a next-generation strain, like TROPICS™ London, and innovate their way to something truly exceptional.

Intrigued? Check out the recipe by clicking the link in our profile!

04/16/2026

Tap the link in our profile to tune into a Craft Beer & Brewing podcast dedicated entirely to thiols. Tim Sciascia and Nick Harris of Berkeley Yeast are joined by Nick Walker of Ology Brewing Company and Gene Wagoner of ISM Brewing & Kitchen for an in-depth conversation covering both the science behind thiols and practical brewing strategies for getting the most out of our thiol-producing Tropics London yeast. Discover how to turn thiol expression up or down, and hear firsthand how Nick, Gene, and Tim each use Tropics London in their hazy IPAs to achieve the juiciest, most vibrant results possible.

04/11/2026

Texas 5 brewery collab! 🤠

A couple of weeks ago, our brand ambassador Tim Sciascia flew down to Dallas to brew up a mega collab with some of our local brewery partners. Bringing the California spirit with him, Tim joined ROLLERTOWN, Bird Creek Brewing, White Rock Brewing Co (WRBC), Bankhead Brewing, and Southern Roots Brewing Co. to whip up a West Coast IPA called Western Playland.

Fermented with our low diacetyl Fresh™️ Chico yeast for ultra focused hop expression, this IPA was split into two distinct versions. Both feature Columbus Cryo, Chinook, and Mosaic on the hot side for ripping, resinous flavor — then the batch was divided for individual dry hops.

The “Classic” version of Western Playland leans into pine, citrus, and a touch of ma*****na from Simcoe and a second helping of Mosaic. The “Modern” version was hit hard with Strata and Krush for strawberry, passionfruit, and fruit cocktail vibes, plus another dash of Mosaic for those dank berry aromas we all love.

The brew day was extra special — a room full of brewers doing what they do best: sharing ideas, great beer, and a genuine love of the craft. Tim and Berkeley Yeast are incredibly grateful to everyone who took time out of their busy schedules to have some fun with us. We came away with a deeper appreciation for the Northern Texas brewing community — hardworking, quality-focused, and brewing world-class beer.

Extra special thanks to Tommy and Chad at Rollertown for hosting our motley crew. 🙌

Western Playland is now pouring at Rollertown. Go get some!

03/16/2026

Last week we got some Fresh Chico into the hands of as they hosted a collaboration brew day for the ’s Collaboration Fest. This collab WC IPA is in conjunction with fellow GABF Brewery of the Year winners and and was sponsored by us, and hops. As guests enter the festival they will be greeted with this beer. Pretty cool!

Many thanks to the folks at Westbound for hosting us. Their pizza and beer are both super tasty!

02/27/2026

While at Cellarmaker, Tim Sciascia leveled up his hazy IPAs with our Tropics London yeast. Watch this short video to see how he harnessed yeast derived tropical thiols to make world class juice.

Want to give Tropics London a try? Click the link in our profile.

01/30/2026

Punchier than your best lot of Citra – for a much lower cost!

Amplify the guava, passionfruit, and grapefruit notes of your IPA by adding Tropics Boost to your Tropics London fermentation.

To make Tropics Boost, we take plants that are rich in thiol precursors. We extract and then purify just the thiol precursors that we want—no extra plant matter that can contribute off notes. Once added to wort, our Tropics yeast will release large quantities of the thiols 3MH and 3MA, the highly aromatic molecules that give passionfruit its signature aroma.

With Tropics Boost, you can dial up tropical notes with high precision (swipe to see the data).

01/26/2026

This is how you build a next level West Coast IPA.
For Cloudburst’s 10th anniversary, teamed up with and —each contributing their favorite hop products and hopping strategies. The result? An IPA absolutely loaded with hop character, kept razor-clean and bright by our low diacetyl Fresh™ Chico yeast.

Get the recipe by clicking the link in our bio.

12/18/2025

It’s cheaper and easier than ever to level up your Hazy IPA game. Dry 500g bricks of Tropics London, our thiol producing yeast, are only $150/brick (plus bulk discounts), and shipping is free anywhere in the U.S.

Click the link in our profile to get your’s today!

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 passionfruit.

12/04/2025

Humble Sea collab!
It was great brewing with our long time friends yesterday. They almost exclusively use our low diacetyl Fresh yeast strains for their foggy IPAs, West Coast beers and classic lagers. We were stoked when they agreed to brew a foggy DIPA copitched 50/50 with Fresh London and Dry Tropics London. Keep an eye out for the beer drop and more details in a few weeks!

11/26/2025

At Outer Range Brewing Co., brewers Luke Wortendyke and Sam Goldstein explain how Berkeley Yeast’s thiol-producing hazy IPA strain, Tropics London, has taken their Colorado Cou Cou IPA to a new level. Tropics London pushes vibrant passionfruit and grapefruit flavors that synergize with the hop character of Nelson Sauvin and Mosaic to create an IPA with supercharged aromatics. That explosively juicy profile has struck a chord with drinkers—Colorado Cou Cou is now Outer Range’s second fastest-growing brand.

Ready to step up your hazy IPA game with Tropics London? Just click the link in our profile.

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