The primary beverage celebrated at the Oktoberfest festival in Germany is beer, particularly the specially brewed Märzen lager. The festival features traditional Bavarian brews served in large Maßkrüge (liters), allowing visitors to enjoy the rich flavors and craftsmanship behind German brewing. The focus on beer is complemented by traditional food pairs, such as pretzels and sausages, making it a truly immersive cultural experience.