Coffee Machine Types Explained: Which One Fits You?

Start here

This guide is ordered from what has the most impact to what has the least. If you are only going to read two sections, read the first two: that is where most of the difference between getting it right and regretting it lies. At the end you will find the glossary with the terms you will see repeated on product pages, explained without the smoke.

The 9 bars of pressure that really matter

Almost every entry-level machine advertises 15 or 20 bar, and it is a marketing figure: that number is the maximum pressure of the vibration pump, not what reaches the coffee. A correct espresso is extracted at 9 bars at the group head, and above 11-12 the extraction turns bitter because it drags out compounds that should stay behind. A 15 bar machine with a properly calibrated OPV valve makes better coffee than an unregulated 20 bar one. When comparing, ignore the bar figure and look at whether the portafilter is pressurised or not, and at temperature stability.

Bean-to-cup: what justifies the jump in price

Between a 300 € bean-to-cup machine and a 800 € one there are four real differences: the grinder (number of steps and whether it is steel or ceramic), the temperature and ratio control per drink, the milk circuit (removable and washable versus fixed) and the ease of maintenance (removable brew group or not). What does not justify the jump: big screens, the number of pre-programmed recipes and app connectivity, which almost nobody uses after the first month. If you make one or two milk drinks a day, the sweet spot is between 400 and 600 €.

Pressurised vs non-pressurised portafilter

It is the most important difference in the 80-300 € range and almost nobody explains it. The pressurised (double-bottomed, with a valve that creates the back-pressure artificially) forgives a bad grind and produces crema even with supermarket coffee: ideal if you are not going to buy a grinder. The non-pressurised (mesh bottom, barista type) depends on you grinding, tamping and dosing well, but it is the only one that gets you to a specialty espresso. If you buy a machine with a pressurised basket expecting to make third-wave coffee, you are going to get frustrated.

Moka pot: why it is not an espresso

The moka pot works at 1,5-2 bars, a long way from the 9 of an espresso, so it does not produce real crema: it makes a concentrated coffee, with body and roasted notes. To get it right: medium grind (coarser than for espresso), fill the filter without tamping, put already-hot water in the boiler so the coffee does not stew on the way up, and take it off the heat as soon as it starts to gurgle. Never wash it with detergent or in the dishwasher if it is aluminium: just water, then dry it. It costs 20-35 € and is still the best pleasure-per-euro in home coffee.

• Build quality and materials
• Recent verified reviews (3-4 stars included)
• Warranty and returns policy
• Current price against its historical average
• Seller reputation
• That the key features match how you will use it (everyday use)

Thermoblock, boiler and PID: why it shows

The thermoblock heats the water on demand: it is ready in 30-40 seconds and is the norm below 400 €, but the temperature swings several degrees between extractions. The boiler keeps a volume of hot water and gives more stability. The dual boiler lets you extract and steam at once with no waiting. The PID is a controller that holds the temperature locked at one value (usually between 90 and 96 °C) instead of letting it swing with a thermostat: it is the upgrade that changes what is in the cup the most, and it already appears on machines at 500-700 €.

Criteria	De'Longhi Dedica EC685Our choice	Chemex Classic 6 Tazas
Ideal for	Balanced, all-round use	everyday use
Strong point	Value for money	Specific features
Ratings	Very positive and numerous	Positive
Guide price	from ~240 €	from ~150 €
Recommendation	Our choice	Best alternative
View on Amazon	See price →	See price →

Manual filter: V60, Chemex and AeroPress

Manual methods cost little and give a clean, aromatic coffee that no automatic machine can match. The V60 (Hario) is the most precise and the most demanding on the pour; the Chemex, with its thicker paper filter, holds back more oils and gives a very clean cup, ideal for light roasts; the AeroPress combines immersion and pressure, tolerates any grind and is practically unbreakable, which is why it is the queen of travel. With all three you need a gooseneck kettle to control the flow and a scale. Total investment: under 100 €.

The grind: 50% of the result is right here

You can own a 1.000 € machine and make bad coffee with a 20 € blade grinder. The blades smash the bean and give an uneven powder: large particles that under-extract and fines that over-extract, in the same cup. You need conical or flat burrs (burrs), which grind to a uniform, adjustable size. For espresso we are talking about around 200-400 microns and it needs a grinder with fine steps; for a French press, 800-1.000 microns. If your budget is tight, split it: a modest machine with a good grinder beats the other way round.

Glossary: the terms you will see in the specs

Portafilter

The part where the ground coffee goes. Pressurised (with a valve) or non-pressurised (barista type).

OPV

Over-pressure valve that limits the pressure reaching the coffee, ideally to 9 bar.

PID

Controller that keeps the temperature steady at a fixed value instead of swinging.

Bloom

First pour of water in manual filter brewing so the coffee degasses, around 30 seconds.

Microfoam

Textured milk with invisible bubbles and a paint-like texture, the basis of latte art.

Channelling

Defect where the water goes through the coffee at a weak point without extracting it properly.

°fH

French degrees of water hardness. Above 25 the water counts as hard.

Conclusion: the decision in three steps

In short: define how you will actually use it, keep only the two or three specs that really affect that, and set your budget accordingly. With that filter, the De'Longhi Dedica EC685 is the default choice and the Chemex Classic 6 Tazas the alternative when your priorities are different. Everything else — extra features, sales campaigns, high-end models — is secondary once those three steps are settled.

Frequently asked questions

Is a drip coffee machine any good?

No, it is different: it gives a clean, long, mild coffee, ideal for several cups in a row. What sinks it is the jug sitting on a hotplate, which stews the coffee in twenty minutes. Look for models with a thermal carafe and a temperature of 92-96 °C, and you will have filter coffee on a par with a V60.

How much should I spend on my first coffee machine?

For 100-150 € you get decent pressurised espresso; the value sweet spot for bean-to-cup machines sits between 400 and 600 €; and below 60 € a stovetop moka pot or an AeroPress makes better coffee than any electric machine at that price.

Why does my machine make no crema?

Three causes, in order of frequency: the coffee is not fresh (two months past roasting it barely degasses any more), the grind is too coarse, or the dose is short. With a pressurised basket it is almost always the coffee; with a barista basket, the grind.

Is a drip coffee machine any good?

No, it is different: it gives a clean, long, mild coffee, ideal for several cups in a row. What sinks it is the jug sitting on a hotplate, which stews the coffee in twenty minutes. Look for models with a thermal carafe and a temperature of 92-96 °C, and you will have filter coffee on a par with a V60.

How much should I spend on my first coffee machine?

For 100-150 € you get decent pressurised espresso; the value sweet spot for bean-to-cup machines sits between 400 and 600 €; and below 60 € a stovetop moka pot or an AeroPress makes better coffee than any electric machine at that price.

Should I go for the De'Longhi Dedica EC685 or the Chemex Classic 6 Tazas?

The De'Longhi Dedica EC685 is the most balanced option and the one we recommend by default. The Chemex Classic 6 Tazas makes sense if your priority is everyday use. As a budget reference, the useful range starts at around 150 € and the best balance is usually found around 240 €.

By the Café en Casa Team · reviewed by

As an Amazon Associate, Mejor Café en Casa earns from qualifying purchases. Prices and availability may vary.