A double boiler espresso machine is a type of espresso machine that uses two separate boilers to heat water. One boiler is used to heat water for brewing espresso, while the other boiler is used to heat water for steaming milk. This design allows for more precise temperature control, which is essential for making great espresso.
Double boiler espresso machines are generally more expensive than single boiler espresso machines, but they offer a number of advantages. First, they can produce more consistent espresso shots, as the temperature of the water used for brewing is more stable. Second, they can steam milk more quickly and efficiently, as the boiler dedicated to steaming is not also being used to heat water for brewing. Third, they are less likely to overheat, as the two boilers are independent of each other.
