Coffee Shop Owners Must Understand Boiler And Heat Exchanger In Espresso Machines

How much water can the boiler accommodate for later as a supply of steeping water to make a cup of espresso? In general, most people assume that a large boiler capacity must be equipped with a capable boiling water heater. This is related to the time efficiency when making espresso. If the boiler is large but the heater is inadequate, it takes a long time to prepare the water at the right temperature for a single shot of espresso serving. Not only the boiler capacity needs to be considered, but boiler materials in the commercial espresso machine also need to be considered.

Usually, the boiler material often found is made of aluminum, brass metal, copper, brass, and stainless steel. Among these boiler materials, each has advantages and disadvantages. However, in a nutshell, this difference lies in the fluctuations in the temperature of heat in the water when it flows from the boiler. The problem of how quickly it heats the water is not too much different. You may discuss or find out what ingredients are good for the espresso machine that you will use. Aside from that, don’t forget to consider the safety valve too.

+ 15 Bar Italian Pump
+ Stainless steel conical burr grinder with 1/2 pounds sealed bean hopper
+ 1600 Watt Thermo coil heating system
+ 67 fluid Ounce (2 Liter) removable water tank with handle

+ Elegant design, best materials, and high quality workmanship
+ Professional disc grinder made of 100% ceramic
+ Easy maintenance and cleaning thanks to removable brewing unit and automatic cleansing and descaling procedures
+ Large capacities in compact design


Compare Pros & Cons Commercial Espresso Machine



  • It can deliver the best quality of coffee.
  • It can respond to high-volume demands for coffee – up to 4 group of heads.
  • Ideal for coffee shops and restaurants.



  • Needs an expert to use the machine, so this could be an issue for an office with many employees – however it is a standard process that if you learn it once it is not difficult to repeat.
  • More expensive than other models.


Then, if you are asked which is the best between a double boiler and a heat exchanger, the answer will vary depending on the needs in serving espresso orders for customers. However, before choosing between a double boiler or a heat exchanger, it might be the best thing to know how a double boiler is made. In fact, the heat exchanger system was created in advance of a double boiler, initially the use of an espresso heat exchanger machine needed management from a trained barista. At that time, coffee shops in America asked the espresso machine manufacturer in Italy to create an espresso machine system that could be used by novice baristas. In short, a double boiler was created and spread throughout the world since then.

Double boilers certainly have two boilers on one machine, and each boiler has its own function. One boiler is for producing steam which will be channeled to the steam wand and the other for the extraction process. The advantage, of course, this separate boiler allows the barista to have full control to determine the temperature in making espresso and more consistent extraction. At first glance, of course, the double boiler has a stable temperature when making a cup of espresso. However, it is also necessary to know about heat exchangers, even though having one boiler for two heat exchangers needs to be able to provide consistent espresso. This system applies a thermodynamic and hydrodynamic algorithm, which explains that the heat exchanger is capable of supplying brewing water with a consistent heat temperature for the extraction of the espresso.

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