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Single-boiler espresso machines - What are they and which ones are good? [Test list]
Benjamin Hohlmann
Over the past years, we have tested numerous espresso machines from all categories and sectors. Among them are many single-boiler espresso machines. You can find the list of espresso machines we have tested so far below. If you would like us to test a specific espresso machine, please do not hesitate to leave a comment.
Our goal is nothing more and nothing less than testing every single espresso machine available on the market. It is an enormous undertaking and we will never truly be finished. But the fascination and your support as a community keep us going.
Here you can read about everything else we have tested.
| Manufacturer | Machine Name | Technology | Status | Article (Blog) / Video |
|---|---|---|---|---|
| Gaggia | Classic E24 | Single-boiler | — | |
| Lelit | Viktoria PL91T | Single-boiler | Article and video | |
| Profitec | Go | Single-boiler | Article and video | |
| Quick Mill | Carola | Single-boiler | Article and video | |
| Rancilio | Silvia | Single-boiler | Article and video |
What is a single-boiler espresso machine?
The name comes from the single water circuit that runs through the espresso machine. It consists of one boiler that provides the water for brewing the espresso. If the single-boiler machine also has a steam wand, the boiler temperature must be increased to generate steam pressure.
For preparing a cappuccino or latte macchiato, you must therefore switch to milk frothing mode after brewing the espresso. Depending on the machine, it takes anywhere from a few seconds to a minute for the boiler to reach the required temperature.
With single-boiler machines, you generally cannot froth milk and pull an espresso at the same time. If you enjoy using a lot of milk froth, you are usually better off with a dual-boiler machine. A dual-boiler allows you to froth milk and pull an espresso simultaneously.
Wishlist: These single-boiler machines are still on our test list
The list below shows single-boiler espresso machines that we would still like to test. Do you have any other suggestions or requests? Feel free to write them in the comments!
| Manufacturer | Machine | Notes |
|---|---|---|
| Bezzera | Hobby | — |
| Bezzera | BZ09 | — |
| ECM | Casa V | — |
| ECM | Classica PID | — |
| ECM | Puristika | — |
| Lelit | Glenda | — |
| Lelit | Grace | — |
| Lelit | Anna | — |
| Quick Mill | Pippa | — |
| Quick Mill | 0820 | — |
| Vibiemme | Domobar | — |
Frequently asked questions about single-boiler espresso machines
How long does a single-boiler machine take to heat up?
Depending on the boiler size and heating power, most devices take between 10 and 20 minutes to be fully temperature stable.
Can I make a cappuccino with a single-boiler?
Yes, absolutely. However, after pulling your espresso, you have to press a button or flip a switch to heat the water in the boiler to steam temperature. This usually takes 30 to 60 seconds.
What is the advantage over a dual-boiler?
Single-boiler machines are generally less expensive, more compact, and often more temperature-stable for pure espresso extraction, as the brew water comes directly from the boiler and is not heated via a heat exchanger.
This list is intended as a supplement. Please comment with your requests and suggestions. Which single-boiler machines should we test next?
