Blumenau is known as the "brazilian beer capital". Besides the traditional Oktoberfest, that attracts tourists from the whole country in October, Blumenau also has a few microbreweries.
Eisenbahn, is the most famous, as they're the only ones of them to sell beer in bottles. They have ten different beers Pilsen, Pilsen Orgânica (Organic, Dunkel, Pale Ale, Weizenbier, Weizenbock, Kolsch, Wiechnachts Ale, Rauchbier and Golden Ale), and can be found in the major cities of the country.
Besides Eisenbahn, you can also find Bierland and Unser Bier, on tap in some bars and restaurants. All of them are very good and highly recommended if you wanna feel the taste of Blumenau.