Hand-built on the Oude Rijn · since 1998

Espresso, unlocked in Leiden.

Twee Sleutels builds dual-boiler espresso machines from brass, steel and Dutch stubbornness. Each one is assembled, tuned and test-pulled by a single maker in our canal-side workshop.

See the machines Book a tasting
☕ Free delivery across Zuid-Holland 🔧 Lifetime rebuild service ⚖️ 10-year boiler warranty 🚲 Delivered in Leiden by cargo bike

Three machines.
No compromises.

Named after the places that keep this city running: its canals, its university and its one stubborn windmill.

Single group · home

Rapenburg

  • 1.2 L heat-exchange boiler
  • E61 group, polished brass
  • Warm-up in 9 minutes
€1,890 Try it →
Dual boiler · bestseller

Hortus

  • Independent brew & steam boilers
  • PID control to 0.1 °C
  • Flow paddle for pre-infusion
€2,950 Try it →
Three group · café

De Valk

  • 11 L saturated boiler
  • Volumetric dosing per group
  • Built for 400+ cups a day
€8,400 Enquire →
The werkplaats

Two keys, one city, one maker per machine.

We took our name from the crossed keys on Leiden's coat of arms. One key stands for the old trade of metalwork, the other for the obsession with a better cup.

Every machine leaves our Haven workshop signed by the person who built it. If it ever needs work, it comes back to the same bench.

28years building in Leiden
6,400+machines still pulling shots
1maker per machine, start to finish
93°our default brew temperature

Come pull a shot.

Showroom & werkplaats

Haven 14, 2312 MG Leiden
A 10-minute walk from Leiden Centraal, right on the water.

Tue – Fri09:00 – 17:30
Saturday10:00 – 16:00
Sun – MonClosed (we're tuning)

Book a free tasting

Thirty minutes with a maker, three machines and whatever beans you bring. Leave your email and we'll send you a slot.