As I said, check out some of the suggestions like Torra Clara, Por Um Punhedo de Dólares, and maybe Coffee Lab. I'm not sure what their respective prices for beans are but maybe you can ask them about it the next time you are in the area. The real key with making good coffee at home is finding a local roaster as opposed to a "brand" as the brands tend to be very stale, sometimes sitting months or even years in the same bag after it was roasted. This means coffee of this variety will inevitably all taste the same - like misery.
FYI, my favorite roasters in Curitiba are Lucca and Four Beans but I don't think they have any distribution in SP. Though I could be wrong about that. Probably won't be back in SP for a long while but if I am there again I will definitely hit you up.
FYI, my favorite roasters in Curitiba are Lucca and Four Beans but I don't think they have any distribution in SP. Though I could be wrong about that. Probably won't be back in SP for a long while but if I am there again I will definitely hit you up.