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Saturday, April 25, 2009

Cask Ale Night at Aroma Thyme Bistro, Hudson Valley Restaurants


Cask Beer has arrived at Aroma Thyme Bistro in Ellenville NY. Chef/Owner Marcus Guiliano is pleased to announce the first Tuesday of every month as Cask Beer Night! The tapping starts at 5pm and goes until the cask is empty. The first Cask Night is Tuesday May 5th. Aroma Thyme will we serving a Cask Ale from Stoudt's Brewery.




What exactly is real ale?

Cask-conditioned beer, often referred to as 'real ale', is brewed from only traditional ingredients and allowed to mature naturally.

The unfiltered, unpasteurized beer still contains live yeast, which continues conditioning the beer in the cask (known as 'secondary fermentation'); this process creates a gentle, natural CO2 carbonation and allows malt and hop flavors to develop, resulting in a richer tasting drink with more character than standard keg ('brewery-conditioned') beers.

Real ale is always served without any extraneous gas, usually by manually pulling it up from the cellar with a handpump (also known as a 'beer engine'). This is the traditional way of brewing and serving beer; only a few decades ago did filtered, pasteurized, chilled beer served by gas become normal.

The only place in the world where cask-conditioned beer is still commonly available is Britain.

Is there much difference to keg beer?

Keg beers are generally sterile filtered and pasteurized as part of the brewing process. This kills the yeast, preventing any further conditioning, and the beer is then racked into sealed, gas-pressurized kegs. Such beers generally taste blander than their cask-conditioned counterparts, and the use of flash-chillers or cold rooms (*very* cold!) is standard as part of the serving process. That said, some microbrewers rack cask beer into kegs - though these are usually served with extraneous gas.

In many common brands of keg beer, cheap ingredients ('adjuncts') such as rice or maize are mixed with the malt to cut costs, but resulting in a 'light' beer with hardly any aroma or flavor. Chilling and the absorption of extraneous gas jointly mask the lack of flavor - with carbon dioxide you get an unnaturally fizzy pint; with nitrogen (or mixed gas with a larger nitrogen ratio) you get a pint with an unnaturally smooth and creamy head - either way these beers are always refreshing but usually taste of very little. Micro-breweries generally avoid the use of cheap adjuncts, so their keg products usually taste far superior to the nationally available brands. Also, all beers imported from Germany are required by that country's laws to be free of non-traditional ingredients.

I'm not criticizing all keg beers, simply outlining the often little-known qualities of real ale by comparison. There are many really tasty ales which are 'keg' (but plenty more which aren't tasty!), though well-kept cask versions of the same brands would undoubtedly be found to be even more flavorsome if compared side-by-side.

But keg beer is 'normal' -
what's it got that real ale hasn't?

Keg beers have a much longer shelf life, especially when compared to a partially full cask. Real ales have to be manually vented and tapped, and left to settle (or the customer gets a cloudy pint due to the presence of yeast and protein - though harmless if drunk like this). Also, real ale will start to taste of vinegar (known as 'oxidising') if left in a part-full cask for too long. This is caused by acetic acid forming from a reaction with oxygen in the atmosphere.

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