Capsule machines produce the same drink every time, which is their genuine achievement.
What they do well
Consistency. No grinder, no dose, no tamp — every cup is identical.
Speed and cleanliness. 30 seconds, no mess, nothing to clean.
No skill required, and no learning curve.
Freshness, oddly. Capsules are sealed under nitrogen, so the coffee inside is genuinely fresher than an opened bag on a counter.
Where the ceiling is
5 to 6 g of coffee per capsule against 18 g in a double espresso. There is a hard limit on what that can produce.
Pre-ground at manufacture, so grind cannot be matched to the coffee or the machine.
Pressurised extraction through a small orifice — the crema is aerated liquid, not true crema.
The result is pleasant and one-dimensional. It will not taste like a good café espresso.
The cost
Per kilo, capsule coffee is five to ten times the price of good whole beans. A daily habit is expensive over a year.
The waste
Aluminium capsules are recyclable through specific schemes; plastic ones largely are not. Reusable stainless capsules exist and work moderately well.
Who they suit
Offices, occasional drinkers, households where one person wants coffee and nobody wants a hobby.
Who they do not
Anyone who wants to taste different origins, or who drinks several a day.
Last reviewed 8 August 2026