Some people feel that naturally carbonated beer has smaller bubbles and a creamier mouthfeel than force carbed beer, but any difference is minor, and there's certainly no flavor difference. It could have been that the bottled beer didn't get a chance to get the sediment compacted well enough or wasn't poured properly and a little yeast made it into the glass. It could also just be something the brewer that bottles is doing differently with his beer. A champagne quality and sharp/tart bite actually sounds like a mild infection.
I'm trying to find some porn filmed by a dog wearing a GoPro. - SharonaZamboni
Hunter, when you get bored, will you put a taco in my elephant's hands for me? - Hat