WPM Primus Espresso Machine | Gear Pump with Pressure Profiling

WPM PRIMUS is designed mainly for advanced enthusiasts and serious home baristas who want full extraction control. Beginners can use it, but its advanced capabilities require some learning. Those looking for a fully automatic machine may prefer a different option.

Despite its professional capabilities, the LED display is designed to be clear and intuitive.

Users can start with preset profiles (such as the Classic profile) without complexity, then gradually learn how pressure adjustments affect extraction.

Yes, PRIMUS includes preset pressure profiles suitable for common roast types:

• Light roast: Higher temperature (92–96°C) with pre-infusion
• Medium roast: Balanced classic profile
• Dark roast: Lower temperature (85–88°C) with reduced pressure

These allow users to start immediately and fine-tune later.

Switching between profiles is quick and simple through the LED display before extraction.

Preset and custom profiles are stored in memory and require no reprogramming each time, making daily use practical.

Routine maintenance is straightforward:

• Regular backflushing
• Using filtered water to reduce scale buildup
• Descaling based on water quality (service available via Safiri app)

Periodic professional servicing is recommended to ensure long-term performance and reliability.