The Science Behind Foam

Ah, the frothy crown of a freshly poured beer! It’s not just a visual delight; it’s a testament to the intricate dance of chemistry and physics. But have you ever wondered what’s behind those delicate bubbles that sit atop your favorite brew? Let’s dive deep into the science of beer foam.

Beer foam, often referred to as the “head,” is more than just a layer at the top of your glass. It’s a complex matrix of air, chemistry, and a bit of magic. At its core, beer foam is caused by the carbon dioxide produced during the brewing process. As beer ferments, yeast consumes the sugars and produces carbon dioxide as a byproduct. This trapped carbon dioxide forms bubbles when the beer is poured, creating that familiar, inviting layer of foam.

But there’s more to it than just carbon dioxide. The stability and quality of beer foam are influenced by several factors, including the proteins, polypeptides, and other compounds present in the beer. These elements clump together and act as foam-positive agents, ensuring that the foam is not just a fleeting presence but lingers, enhancing the beer-drinking experience.

One of the primary proteins responsible for beer foam is LTP1. The precise science behind how LTP1 forms and operates — a process known as nucleation — is still a topic of research. What’s fascinating is that despite our long-standing relationship with beer (dating back at least 11,000 years, with ancient beer cisterns discovered at sites like Gobekli Tepe in modern-day Turkey), there are still mysteries to unravel.

The role of foam in beer is multifaceted. Not only does it enhance the visual appeal, but it also plays a crucial role in aroma release. As the bubbles burst, they release aromatic compounds, intensifying the beer’s aroma. Moreover, a good head can protect the beer underneath from oxidation, preserving its freshness.

But not all beers are created equal when it comes to foam. The type of malt, the hop oils, the cleanliness of the glass, and even the pouring technique can influence foam formation and retention. For instance, wheat beers tend to have a thicker, creamier foam compared to others. The mineral content of the water used in brewing can also play a role. Water with higher sulfate levels can lead to finer, more stable foam.

The art of pouring a beer is also intertwined with the science of foam. A proper pour, at a 45-degree angle, ensures the right amount of foam. Too little foam, and you might be robbing yourself of the beer’s full aromatic potential. Too much, and well, you’re just waiting for the foam to settle to get to the good stuff.

In conclusion, the next time you’re sipping on a cold one, take a moment to appreciate the foam. It’s not just an aesthetic touch; it’s a testament to the intricate balance of chemistry, physics, and art that goes into making every pint of beer a brew-tiful experience.

So, here’s to the frothy crown that graces our beers — a symbol of the science, craft, and passion that goes into every brew. Cheers!


Now Available in Kegs: PLEASE BEVERAGE

Now Available in Kegs: PLEASE BEVERAGE

What do you get when you mix local ingredients, unexpected concoctions, and dedication to small-batch craft? Bottled cocktails like you’ve never had them. We’re shaking (and stirring) up a new cocktail culture made from the best ingredients the earth has to offer.

A lot goes into making our homemade cocktails. From seeking global inspiration to sourcing local ingredients, we leave no stone unturned in our quest to serve the best cocktails you’ve ever sipped. In other words, we like to take the long way on purpose.

Experience a world of difference through our locally grown herbs, house-made tinctures, freshly squeezed juices, and ever-changing concoctions.

Check out our selection here.

What’s happening around the city.

What’s happening around the city.

Event NameDateLocation & Description
BC Craft Brewers ConferenceThu, Oct 19–Fri, Oct 20Anvil Centre, New Westminster, BC – A conference dedicated to craft brewing.
Official After Party at Steel & Oak BrewingFri, Oct 20Steel & Oak Brewing Co., New Westminster, BC – The official after-party of the BC Craft Brewers Conference.
BC Beer Awards & FestivalSat, Oct 21, 4:00–9:00 p.m.Croatian Cultural Centre, Vancouver, BC – An award ceremony and festival celebrating BC’s best beers.
Yoga on Tap at Brave BrewingSun, Oct 15, 11:00 a.m.–12:00 p.m.Brave Brewing Co., Port Moody, BC – A yoga session followed by a refreshing beer.
Bottle & BondsSat, Oct 14, 1:00–5:30 p.m.Dageraad Brewing, Burnaby, BC – A bonding event over bottles of craft beer.
Live Music Nights at Red Truck BrewerySat, Oct 14, 7:00–9:30 p.m.Truck Stop Diner, Vancouver, BC – Enjoy live music while sipping on Red Truck’s finest brews.
LagerhosenSat, Oct 14, 4:00–11:59 p.m.Site B Community Centre, Port Moody, BC – A celebration of lagers and traditional German attire.
LIVE MUSIC SUNDAYSun, Oct 15, 2:30–6:00 p.m.Dead Frog Brewery, Langley Twp, BC – Relaxing Sunday with live music at the brewery.
Paint Nite: There Is MagicSun, Oct 15, 2:00–4:00 p.m.East Van Brewing Company, Vancouver, BC – A painting session with a magical theme.
Brewers LecturesWed, Oct 18, 1:00–6:30 p.m.Anvil Centre, New Westminster, BC – Lectures from leading brewers in the industry.
Yoga on Tap at Patina BrewingSat, Oct 21, 10:30–11:30 a.m.Patina Brewing Co., Port Coquitlam, BC – Combine the relaxation of yoga with the refreshment of beer.
Tacofino Brewery SeriesThu, Oct 26, 7:00–10:00 p.m.Tacofino Ocho, Vancouver, BC – A series dedicated to the combination of tacos and beer.
Conversations after beer 🍻Tue, Oct 17 & Tue, Oct 24, 7:30–10:30 p.m.London Pub, Vancouver, BC – Engaging conversations post a beer session.
Paint Nite: Magic under the StarsSun, Oct 22, 2:00 p.m.East Van Brewing Company, Vancouver, BC – Paint a magical night sky.
Trivia Tuesday’s at Farm Country BrewingTue, Oct 17 & Tue, Oct 28, 6:30–9:00 p.m.Farm Country Brewing, Langley, BC – Test your knowledge with trivia at the brewery.
The DagerpaatchSat, Oct 28–Sun, Oct 29Dageraad Brewing, Burnaby, BC – A special event at Dageraad Brewing.
Paint Nite: Bright Moon GalaxyWed, Oct 18, 6:30–8:30 p.m.Brave Brewing Co., Port Moody, BC – Paint a bright moonlit galaxy.
Strange Art SessionsMon, Oct 23, 6:30 p.m.Strange Fellows Brewing, Vancouver, BC – Art sessions at the brewery.
Beer.js October 2023Tue, Oct 24, 6:00–8:00 p.m.Steamworks Mount Pleasant, Vancouver, BC – A meetup for beer and JavaScript enthusiasts.
Dead Fellows Haunted BrewhouseMon, Oct 30 & Tue, Oct 31Strange Fellows Brewing, Vancouver, BC – A spooky event at the brewhouse.
Paint Nite: Starry LakeTue, Oct 17, 6:00–8:00 p.m.Mariner Brewing Company, Coquitlam, BC – Paint a serene starry lake.
Tultepec Dinner Pop-UpWed, Oct 18Steel & Oak Brewing Co., New Westminster, BC – A pop-up dinner event.
Vancouver’s North Shore Craft Beer WeekNov 3–14North Vancouver, BC – A week-long celebration of craft beer in North Vancouver.
Beer & Cheese PairingThu, Nov 9, 7:00–9:00 p.m.Mariner Brewing Company, Coquitlam, BC – A pairing session of beer and cheese.
Beer & YogaSat, Nov 11, 10:00–11:00 a.m.Mariner Brewing Company, Coquitlam, BC – Yoga followed by a beer session.
Beer & Board GamesSun, Nov 12, 2:00–5:00 p.m.Mariner Brewing Company, Coquitlam, BC – Enjoy board games with a pint of beer.
Hops and Giggles: Brewed Laughs for Beer Lovers

Hops and Giggles: Brewed Laughs for Beer Lovers

  1. Why did the beer file a police report? It got mugged!
  2. What’s a skeleton’s least favorite room in the house? The living room… especially when there’s no beer.
  3. Why did the beer blush? It saw the ale strip!
  4. What did the bartender say after Charles Dickens ordered a beer? “I’ll have a Tale of Two Cities.”
  5. Why did the beer go to school? To improve its draft!
To claim any of the specials or discuss sponsorship opportunities, please contact the office at
(604) 251-4842

To claim any of the specials or discuss sponsorship opportunities, please contact the office at
(604) 251-4842

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