Commercial coffee roasters are sorted three different ways — how heat reaches the bean, where the heat comes from, and how much they roast. This guide keeps the three apart so you can describe the machine you need in one line.
Dialling in is taught as one person adjusting one grinder until the shot tastes right. A café needs a procedure: who dials in, when, how many shots, what is recorded, and when nobody touches the grinder. A three-shot method with the dose check that timed grinders need, and the rules that keep three baristas on one setting.
Turkish and Arabic coffee is ground to a powder below 100 microns — finer than any espresso grinder reaches — and grinding that fine generates heat fast. The three questions that decide a commercial Turkish grinder: how fine it goes, how long it can run before heat damages the coffee, and how many kilos an hour it delivers, with an industrial mill in our range priced for shops and small roasteries.
Stepless adjustment gives finer control and stepped adjustment gives a setting you can return to — the guides agree on that much. What they miss is the café: several baristas, several shifts, daily re-dialling and worn burrs. How each mechanism behaves under those conditions, how to record a setting on a stepless collar, and how to re-zero after a burr change.
The import guides cover one piece each — voltage, HS code, Incoterms. Here is the whole sequence for a café or distributor buying commercial espresso machines from a Chinese supplier: specification and voltage, quotation and payment terms, inspection, EXW shipping, customs classification, arrival checks and how the warranty is honoured across a border.
Two small brass valves on the steam boiler protect a commercial espresso machine — one against vacuum as it cools, one against over-pressure. What each does, why a hiss during warm-up is normal and a hiss after it is not, when the safety valve opening means switch off, and the yearly replacement most cafés skip.
Guides compare a used local machine with a new one from a local dealer. For most of the world there is a third option — a new machine imported from a factory at a lower price with air-freighted parts and remote support — and it changes the comparison. Total cost, lead time, warranty, parts and voltage, side by side, plus the inspection checklist for a used machine.
Four situations move a commercial espresso machine — a relocation, an event, a return for repair, and delivery of a new imported machine — and each needs a different amount of draining, packing and recommissioning. The procedures, the freeze risk nobody insures, and the unboxing sequence for a machine arriving in a crate.
The steam gauge on a commercial espresso machine sits around 1–1.3 bar and moves in a small cycle. What the number means, why the needle swings, how to tell normal deadband from a failing pressurestat, when the safety valve opens, and how PID-controlled steam boilers differ.
Insurance brokers list the policies a roastery needs; nobody tells the roastery what the underwriter will ask about the machine. The seven questions — heat source, exhaust, fire, documents, maintenance, stock, transit — the answers that lower the premium, and why EXW terms mean you insure the shipment yourself.
