For coffee lovers who want to make the perfect espresso at home, a piston machine is an essential device. A piston machine gives you complete control over the coffee brewing process, from grinding the coffee beans to extracting the espresso. But what should you pay attention to when buying a coffee piston machine? In this article, we explain which factors are important to consider, so you can choose the machine that best suits your needs.
What is a piston machine?
A piston machine, also known as an espresso machine with a portafilter, is a type of coffee maker that allows you to make espresso manually. The most important feature of a piston machine is that you place the ground coffee beans in a portafilter (or piston) yourself, tamp them down, and the machine forces hot water through the coffee under pressure. These machines are often used by baristas because they offer a lot of control over the taste and quality of the espresso.
What should you pay attention to when buying a piston machine?
1. The type of piston machine
Piston machines come in different types, depending on how much control you want over the coffee brewing process. Choose a machine based on your expertise and how much control you want during coffee brewing.
- Manual piston machines require you to flow water through the coffee yourself using a lever. This gives maximum control, but also requires experience.
- Semi-automatic piston machines are the most popular for home use. You operate the machine yourself to start and stop the extraction, but the pressure and water temperature are regulated automatically.
- Automatic piston machines perform the entire process, except for filling the portafilter. This can be convenient if you want to make a consistent espresso quickly.
2. Quality of the espresso pump
The pump is responsible for creating the pressure needed to make a good espresso. Ideally, the pump should deliver a pressure of at least 9 bar to be able to make a rich and full espresso. Higher quality piston machines can offer pressure up to 15 bar, which ensures an even better extraction of the coffee beans.
3. Material and build quality
A good piston machine will last for years, but then it is important that it is made of sturdy materials. Stainless steel machines are robust, wear-resistant, and highly resistant to heat. Cheaper plastic models may wear out or crack faster over time. Also pay attention to the quality of the portafilter: a heavy, metal portafilter retains heat better, which is crucial for a stable extraction.
4. Warm-up time and temperature stability
The temperature of the water is very important for a good espresso. A piston machine must be able to heat up quickly and keep the temperature stable during extraction. Check if the machine has a good boiler or thermoblock that can heat the water efficiently and keep the temperature constant.
5. Size and capacity
Piston machines vary in size and capacity. Do you have limited space on your counter? Then a compact model is ideal. In addition, you need to look at the capacity of the water reservoir and how often you want to use the machine. For someone who makes several cups daily, a larger water reservoir is more practical. Do you use it occasionally? Then a smaller water reservoir is sufficient.
6. Price and brand
The price of piston machines can vary from a few hundred euros to several thousand, depending on the brand and functionality. Well-known brands such as De'Longhi and Sage offer reliable machines of good quality. However, also take into account your budget and how much you are willing to invest.
7. Steam wand for frothing milk
If you like cappuccino or latte, a steam wand is an indispensable part of your piston machine. With this, you can froth milk for a creamy layer of foam on your coffee. Not all piston machines have a steam wand, so if you like making milk coffees, choose a machine with a powerful steam wand that can generate good steam.
Summary
Choosing the right piston machine depends on your personal preferences, coffee routine, and budget. Pay close attention to factors such as the type of machine, the quality of the pump, the building materials, and any extra functions such as a steam wand.
Whether you are just starting to make espresso yourself or are an experienced barista, there is always a piston machine that suits your needs and ensures that you can fully enjoy freshly ground coffee beans and a perfect espresso.