The heart of the factory houses two parallel assembly lines dedicated to building out different versions of the espresso machines, such as color-coded 110-volt runs and transitioned hardware generations. Next to the main lines are specialized preset chassis stations where preparatory elements—including power plugs, fans, and internal USB cables—are pre-installed. Group head controller manufacturing sits right nearby, with finished heads stacked on custom rolling baker-style carts for quick deployment onto the line.
Quality control is deeply integrated into the sub-assembly phases. Every single fully assembled group head goes to a specialized diagnostic station for real-time pressure gauge checks and leak testing. For electronics, new computer DC boards are plugged into a custom-built logical test rig. This rig runs complex software tests across the circuits; a set of LEDs explicitly flags whether a board has a localized repairable bug or a fatal error, ensuring every single logic light passes before a component enters a machine.
The factory features a dedicated testing rack line where completed machines are rigged with overhead power lines and under-bench water hookups. To test real-world extractions, Decent utilizes custom-built, pressurized temperature-sensing portafilters paired with variacs. These specialized power supplies allow engineers to artificially simulate global grid variations, replicating specialized voltages and frequencies like a 100-volt Japanese current to ensure stable performance anywhere in the world.
Decent's rapid production growth is highlighted by its physical real estate expansion. The factory tour explores the original space, which has since been repurposed into a massive parts warehouse. Over a five-year period, the brand's workspace footprint systematically doubled at every stage of growth—scaling from an initial 3,000 square feet to 6,000 square feet, before ultimately expanding into the 12,000-square-foot facility used today to manage accessory boxing and final chassis assembly.