The ideal brewing temperature for espresso is between 195 and 205 degrees Fahrenheit. However, many espresso machines only have a single brewing temperature, so it's important to experiment to find the temperature that works best for your particular machine. Espresso brewed at too low of a temperature will be weak and watery, while espresso brewed at too high of a temperature will be bitter and burnt tasting. If you're not satisfied with the flavor of your espresso, try adjusting the brewing temperature until you find the perfect balance.