Is this an off-flavor or to-style?

[edgeofblade]

I've recently tasted a few beers with a particular mid-to-after-taste. The beers were Alamo Golden Ale, Fireman's No.4, and Holy Grail Ale. The last thing I taste is an almost stale snap that reminds me of thin pizza crust left out over night. Is that "oxidized"? Or perhaps stale grain? Or is that correct to the style?

 

[unionrdr]

Maybe on the shelf too long?...

 

[edgeofblade]

Don't know. The firemen's was on tap...

 

[unionrdr]

Sounds like the one on tap didn't have it's lines cleaned?

 

[edgeofblade]

I think I finally understand. It's the corn flavor in the finish. I've associated it with bad beer, so I thought it was oxidized or just plain stale.