Just returned from my trip to Argentina. I was fortunate enough to try some tasty brews while traveling. I visited Cerveceria Blest in Bariloche. I only sampled their pilsener. It was nice except for the slight buttery (diacetyl) flavor. The place was a little stuffy, rich folks on vacation and the wait staff knew little about the beer. Instead of ordering another, I walked the 200m down the road to Cerveceria Berlina. I must say these people know how to brew beer! The staff is super chill and really into the beer. I tried the imperial IPA which just won 3rd best beer in South America, as well as a very nice Weissbier. Also I can't speak enough praises about Cerveceria Cossab in Buenos Aires. Every one of their beers is spot-on with style. The blonde, scotch and IPA were my favorites. I highly recommend a visit there if you get the chance. It's a great little place in the Boedo neighborhood, full of cool people and good food too. A little off the beaten tourist path. Also tried the Brown Ale at Buller Brewing company in Recoleta. Who'da known that you can drink a true brown (very similar to Newcastle) just a few hundred meters from Evita's grave?! This place is a little over-priced by local standards but the beer is quite nice.
I must say, Argentina is coming around to good beer. It's nice to see a country with an emerging beer scene that's very organic, not pretentious and just plain fun. Nobody is brewing really crazy, wild beers but the beers they are brewing are very good and true to style. I'm glad that I came across these few and there are so many more to discover.