Find the main square, the Stary Rynek, and the brewpub is on the SW corner of it - you can't miss it especially at night.

Brewpub and hotel on Poznañ's impressive main square.  Three beers are on sale, generally the excellent Jasne (pale) plus two specials.  These are advertised on posters both outside and in so you know what's available.  On our visit the others were a delicious Miodowe (honey) and very well-made Pszeniczne (wheat) which, unsurprisingly, wasn't to my taste!  There are three drinking areas; a cellar bar, ground floor bar and upstairs "beer hall" where the Salmbräu brew plant is located.

Proletaryat, Ul Wrocławska 9 (just S of stary rynek).  Open 16:00 onwards.

On the southside of the Stary Rynek Wrocławska heads south towards the Kościół Farny.  A hundred metres down the road, on the left, you'll see this small bar with it's huge bust of Comrade Vladimir Illich Lenin in the window.

U Honzika, ul. Stanisława Taczaka 21.  Weekdays from 10:00, Sat from 16:00.

On a nondescript road just north of the Stary Browar centre.  The pub is in a cellar on the right-hand side.

Hot, sweaty cellar bar with a very Czech-influenced beer list (it's billed as a "Český pub") including lots of Zlatopramen and Černá Hora beers plus a fridge full of strange choices from Ukraine, Russia and other Eastern European countries.  Well worth a look if only for the Černá Hora beers, very rare this far east.  We scooped a Sun-Inbev unfiltered "white" beer from Chernigivski brewery, okay it's Inbev but I didn't know when I ordered it... honest!

Brogan’s Irish Pub, ul. Szewska 20a.  

 Just off the NE corner of the Stary Rynek.

 Has draught Zywiec porter - if you can put up with the fake "Oirishness".

Behemot Cafe i Kawiernia, Kramarska 16.

Small coffee bar and cafe just to the north of the Stary Rynek.

Coffee bar/cafe selling the rare but revolting Fortuna beers which taste like cola ! Useful for the desperate... well, I went there...  Don't order nachos unless you want a small dish of dorito-like crisps with spicy tomato sauce!

There's also a bar called Browar Pub, ul. Półwiejska 42, Stary Browar centre on floor -1, in the “malting section”.  It sounds like there may be some old brewing kit there although the beer range is probably just multinational crap and it's evenings only.  We didn't visit, so if it is in fact a brewpub then let me know, please... although I'd put money on it not being one.

Beer Shops.

Piotr i Paweł supermarket, ul. Półwiejska 42, Stary Browar centre.

Stary Browar centre, Atrium level -1.  Map.

This supermarket is situated on level -1 of the centre and has a surprisingly decent range of beers, although the Polish selection is distinctly poor.  Nevertheless, a few local scoops from Poland and lots of other random stuff from the UK, Germany, Belgium and the like; well worth a look for the best range in town (unless Koneser is actually open!).

Organic Farma Zdrowia, ul. Półwiejska 42, Stary Browar centre.

Stary Browar centre, Atrium level -1, almost next door to Piotr i Paweł.  Map.

A small wholefood shop with only a couple of beers, but both were huge and the Konstancia Dawne especially is very rare. I can't guarantee any scoops, but it's on the same floor as Piotr i Paweł just along the corridor so you may as well have a look.

Alkohole shop, corner of Stanisława Taczaka and Franciszka Ratajczaka.

Close to U Honzika.

Notable amongst the mass of similar shops in selling the rare (and quite nice) Koreb beers in bottle.

Koneser, 86 Jana Henryka Dąbrowskiego. 

  Opposite Polna tramstop.

  This was originally a beer shop close to Stary Browar, now vanished, although we saw a bar with the same name (badged as a "Galeria Piwa") here - although it wasn't open on our visit. The window had a beer display, there was some kind of bar inside, but also plugs and cans of paint on the tables... any suggestions? It looked like it was either being made ready for opening or had closed for good! Reports please...

Chłopskie Jadło (Peasant Food), Stary Rynek 77.