Returning to Bs after ten years, anxious to find great coffee and someplace roasting daily or frequently. The place I used to go to, Pueyreddon off of Santa Fe? I think it was, had an active roaster in the front of the shop, has closed that location and moved, under the name: Establecimiento General de Café, with 3 locations (google it). First beans were good enough, but not exciting. Stumbled across Cafe Martinez Italian roast - it's great! when served in Cafe Martinez and I'm grinding the beans at home with excellent results. Best coffee in Bs I've found so far.
A friend whose lived here a long time made these interesting comments after I asked him about the 3 recommends of Latente, LAB and Full City: I like Latente a lot, it's a cool little place on Thames - just kind of a nice place to hang out. LAB I'm less enamored of. It's really good coffee, but it's a small chain of, let's call them, to be polite, pretentious snobby hipster cafes. Full City is a cool place run by a brother and sister from Colombia, their parents have a coffee plantation and all the coffee they serve comes from the family plantation. There are a bunch of other small little cafes that are worthwhile, unfortunately almost all of them in Palermo - I like Felix Felices a lot. In Recoleta, ever since Establecimiento General de Café closed, I haven't found a really good cafe.