Single Boiler Espresso Machines

Single Boiler Espresso Machines

Who Is The Ideal User For a Single Boiler Machine?

Single boilers use a dual thermostat, which allows you to control the temperature in the settings panel while you are at each step in the drink making process. It takes more time (up to several minutes) though, for the machine to acclimate to each setting. Although you have the ability to steam milk and brew espresso, you cannot do so at the same time.

Single Boiler Espresso Machines

The proper brewing temperature for espresso is approximately 195°F – 205°F and to produce steam pressure water needs to be heated to approximately 255°F – 270°F. With a single boiler machine this is a bit of a challenge since there is only one boiler with two different thermostats. If the coffee thermostat is turned on the water will be heated to its ideal brewing temperature and the boiler must be completely filled. After you make your coffee, comes the challenging part, to produce steam pressure in order to produce micro foam in your milk. In order to do this you need to first turn on the steam thermostat which will raise the temperature of the water in the boiler to between. As the temperature rises you must open the steam arm and allow water to escape from the completely filled boiler to make room for steam pressure to build. Once the pressure builds you can then steam your milk. This type of machine is not ideal for someone that is doin milk-based drinks.

Higher end single boiler machines come with the added feature of a PID which allows for better shot consistency with stable brewing temperatures. The Alexia Evo and Carola single boiler machines by Quick Mill both have this PID temperature feature

Single Boiler Deciding Factors
  • Ideal for someone that does primarily espresso drinks but wants the option to also make milk-based drinks
  • Great introductory machine for first time espresso machine buyers

  • Offers quality espresso at a less expensive price tag than a heat exchanger & dual boiler machine

  • Smaller in size and doesn’t take up too much counter space


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