The Fastest Home Coffee Makers in America. Speed Brew Coffee Makers can brew 10 cups of coffee in about 4 minutes because they store hot water in a Stainless Steel Commercial Grade tank allowing them to Brew Coffee on Demand. They re always on your counter always plugged in and always ready to brew the Perfect Cup of Coffee. Millions of coffee lovers rely on these Classic Speed Brew models to Brew Coffee on Demand for their family and friends. Based on internal testing of BUNN Speed Brew coffeemakers to other similar coffeemakers