
For those breweries that package, an automated bottling (or canning) line is obviously a necessary piece of equipment. And it is actually mesmerizing to watch as bottles (or cans) are fed into the machine, lined up, rinsed, filled, topped, sprayed, and sent off to be packaged with others.
You’ve probably noticed when you’ve been on brewery tours that the employees manning the line wear gloves. This is in part for safety reasons, but it’s also because it’s cold. Standard filling lines run the beer right from the bright beer tanks and into the bottles or cans, and when the beer comes out of the bright tank, it’s anywhere from just above freezing to the 40s Fahrenheit.
That makes sense for the majority of beers—especially for lagers, which thrive under colder temperatures, and even for most ales when it comes to serving temperatures. But for the breweries that practice bottle- or can-conditioning, where yeast is added to a bottle or can to ferment the residual sugars in the beer and thus create a more layered and effervescent beer-drinking experience, cold filling has it disadvantages. Typically, the ale yeasts these brewers use need warmer temperatures to get down to doing their job. So if yeast is added to a package with cold beer, it needs to wait until the beer warms to begin the important fermentation work.
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It’s not uncommon for a beer style to emerge, and spread, from an identifiable “bottle zero.†Every modern witbier, including Allagash White and Blue Moon, traces back to Pierre Celis’s recipe for Hoegaarden; Sierra Nevada’s Pale Ale encouraged an entire generation of copycat hoppy brews; and the Trappist ale Orval has inspired countless homage beers, like Goose Island’s Matilda and Green Flash’s Rayon Vert.

Join us for a live podcast from Homebrew Con 2019 in Providence, Rhode Island. We talk to AHA Director Gary Glass, hop expert Stan Hieronymus, Alex Rumbolz about what’s new from Yakima Chief Hops, lots of other conference attendees, and even get in an experiment! Did we get the blind triangle tasting right? Did anybody?


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