The brewer is the heart of a bean-to-cup vending machine. Its condition shapes every espresso.
The brewer is where ground coffee is tamped and then pushed through with hot water under pressure. After brewing, it ejects the puck into the grounds bin and resets for the next drink. Coffee residue and oils build up over time, so it needs regular cleaning.
The cycle
- Receiving the ground dose.
- Tamping it in the chamber.
- Running hot water through.
- Ejecting the grounds.
Cleaning
Some brewers come out for rinsing; others are cleaned by a program with cleaning tablets. The manufacturer sets the frequency. A neglected brewer makes bitter coffee and can jam.
The brewer in a serviced machine
In operator-run coffee vending machines (publisher's site), brewer cleaning is usually the service team's job.
FAQ
Does the brewer wear out? Seals and moving parts wear and are replaced during service.
Does an instant machine have a brewer? No, it uses mixing bowls.