Color and clarity variations were immediately apparent. The normal Sofie poured a pale-golden color that was mostly clear, while the "off" bottle had a darker, more orange hue and was hazy.

Real Sofie tastes slightly fruity, slightly spicy, with a zesty carbonation that results in a champagnelike finish. The Feb. 11 sample had muddled aromas and flavors, including some rancid butter and vaguely sour elements, and dull carbonation. I couldn't choke down all of the contents of the 22-ounce bottle, leaving about half of it for a beer-loving friend to try.

Tasting recalled beers can be a fun experiment, so long as the brewery assures that doing so poses no health risk. But consistency is a hallmark for any producer of consumer goods, which is why I give credit to Goose Island and other breweries that act quickly to ensure that "off" beer doesn't reach the lips of too many customers.

"While I may not like McDonald's or Budweiser, one of the main keys to their success is consistency," Steckert says. "Craft beers are given far more leniency with consistency, but there is a tipping point with any product."

Brewpub tour!