How a Kilo works

Every part of a Kilo, laid out in the order it goes together. The gears, certain seals, the handle, the drip tray and the stand are made in our workshop. The aluminum housing is machined outside, by a shop with the equipment it needs; the gauge and standard fasteners are bought in.

A lever machine trades effort for pressure: nine bars asks for your whole arm. Kilo puts a gear-reduction drive and a lead screw between the handle and the plunger. Each turn of the handle moves the plunger a short, precise distance, so the force arrives slowly and evenly. It's designed so that "two" fingers are enough to generate pressure.

Because nothing is automated, the pressure profile is yours. Soak the puck gently, ramp up, hold, ease off at the end. The gauge on top shows exactly where you are; your hand decides where to go. Shot is too fast — grind finer, too slow — grind coarser. 

On most manual machines, the first thing your hot water meets is a heavy block of cold metal. The metal wins. So you preheat — flush it, wait, flush again — and every shot depends on how patient you were.

We turned the problem around. The brew chamber is lined with stainless steel machined in-house to under a millimeter, so there is almost no mass to warm. Outside the liner sits insulation, so what little heat moves into the steel stays there instead of bleeding into the body. That is how the preheating step is designed out.

If you already make espresso, most of this is familiar. The grind, the tamp, puck-prep exactly as on any prosumer machine. What changes is the part in the middle — and how little waiting there is around it.

Each material is there for a job. Stainless steel where water and coffee touch. Aluminum where the machine needs to be rigid but not heavy. A hard black finish where hands and cups land every day. The parts that benefit from handwork are made in our Vancouver workshop, and every machine is inspected against our checklist before it ships.

With no boiler there is no scale to fight. With no motor or board there is nothing to fail quietly inside a housing. Care comes down to cleaning and regreasing the lead screw now and then, replacing a seal.