Originally Posted by Lou_Pilun
I am thinking it is primarily a change in aroma which I honestly don't fully mind. I just wonder how I am supposed to know what the flavor is and isn't designed to be. Supposedly it is extraordinarily easy for a beer to get skunked which makes all green or clear bottles suspect to me.
Yeah it is a change in aroma caused by UV light reacting with the hops (amber blocks UV well and green doesn't).
It's pretty easy to pick out as it smells/tastes just like a skunk's spray. I don't know if any commercial breweries intentionally "skunk" their beer or if they just use green/clear glass to differentiate their product. I have heard of some home brewer's trying to clone a beer like Corona or Heineken by bottling with clear/green bottles to intentionally skunk the beer.
If you would like to learn how to identify it more easily, you could do a side-by-side taste test with Heineken out of a green bottle vs. the keg can.