Craft brewing refers to the production of beer by small, independent breweries that focus on quality, flavor, and traditional brewing techniques. These breweries typically produce smaller batches of beer compared to mainstream beer producers. Craft brewers often experiment with unique ingredients and styles, emphasizing creativity and innovation. Mainstream beer production, on the other hand, usually involves large-scale operations by multinational corporations. These breweries often prioritize consistency and efficiency over experimentation and variety. Mainstream beers are typically mass-produced and marketed to a broad audience. In summary, craft brewing emphasizes small-scale, artisanal production with a focus on quality and innovation, while mainstream beer production tends to prioritize consistency and mass appeal.