Coffee machines and espresso machines are both devices used to brew coffee, but there are some key differences between the two.Coffee machines typically use a larger dose of coffee grounds and water, and the coffee is brewed for a longer time. This results in a weaker, less-intense coffee flavor.Espresso machines use a smaller dose of coffee grounds and water, and the coffee is brewed for a shorter time. This results in a stronger, more-intense coffee flavor.In addition, espresso machines typically have a built-in frother that creates a creamy, foamy texture for the coffee. This is not typically found on coffee machines.So, if you're looking for a strong, flavorful coffee, an espresso machine is the way to go. If you're looking for a weaker, more mild coffee, a coffee machine is the better option.