Lime Slice in the Beer History:

It is unclear how sticking a lime wedge in you beer came about but it might have come from the european custom of sticking a lemon in a Hefeweizen. This lime slice in the beer is associated with Mexican beer. There is a debate as to whether people like the taste of lime juice in their beer or if they need something to mask the taste of Mexican beer.

Many of the beers from Mexico have strong ties to their European counterparts, such as: Vienna Lagers, Export Lagers and Pilsners. A portion of this influence can be attributed to the four year stint of Austrian rule over Mexico, Swiss brewers that had immigrated and the global palate shift to lager beers in the late 1800's. Mexican brewers have put their own unique twist on the styles over the years. The majority of Mexican beers are simply "light" (in colour, flavour, malt sweetness and hops), and ideal for the hot climate from which they hail. This lightness and the hot climate might have led to the slice of lime being added to the beer.
Corona, on its own, is actually not a bad beer -- if it is fresh. When fresh, it is a typical continental lager, not unlike Heineken - somewhat crisp and bitter, kinda refreshing, especially if you are cooking on the hot sands of Mexico.

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But the Corona we get here in the bottle is invariably skunky. I have never had one that wasn't. Skunky means 'light-struck', the result of a chemical reaction involving hop derived compounds that gives the beer a decidedly skunk-like aroma and, sometimes, flavour. Skunky is NOT, I repeat NOT, a generic word for bad beer, although beer idiots use it for that: "I don't like that beer - it's skunky!" Usually, when you hear someone say that, it is the first time a Blue drinker has tasted a REAL beer and they are afraid of it because it actually smells and tastes like malt and hops.

Back to citrus fruit and beer...I am not against it, really. I find that lime rescues Corona. It kills the skunk and gives a little zippy refreshment. You may have noted a craze about 15 years ago for lager and lime here in Canada. In the UK this is still fairly common - mixing lime cordial with beer to make a Shandy-like drink. Lower alcohol and easy drinking - good for summer refreshment. This is fine, just don't put lime in a good beer!

I myself have been known from time to time to squeeze a lime slice into a Big Brewery lager. It makes it taste better, and, you know what? That is all that matters.

Cheers!