Why does beer taste different from the bottle vs. Pub A tap vs. Pub B tap

Question

Just been enjoying a few beers lately. Same beer from the bottle good, from pub A great, then again from the tap of pub B tastes more bitter, an entirely different flavour that isn’t as refreshing.

I’ve experienced this before. So what’s up? Why are two pubs pouring the exact same beer from the tap and coming out with different flavours?

In: Other

Answer 1

Bad keg, fouled lines, or tap. Pint glass with residue from washing. Pouring the pint incorrectly (head vs body, especially with hoppy brews like IPA). Could be the barley or hops was grown in a different locale.