What Is Flash Brew Coffee (https://www.roastthecoffee.com/coffeedrinks/what-is-flash-brew-coffee)? It's a way to make iced coffee. Hot water brews over ice, cooling the coffee quickly. This keeps its rich aroma and natural flavors intact. This technique keeps the brightness and acidity that traditional cold brew often lose. The result is a cleaner, more vibrant taste. Specialty coffee fans love flash brew coffee. It uses a pour-over setup to create a refreshing drink while keeping high quality.