ZeroHero Heropresso Espresso Maker

Yes, you can use pre-heated water if you prefer to save battery life. Simply pour the hot water into the reservoir, and the device will skip the heating cycle and proceed directly to the extraction phase.

The battery is designed to handle hundreds of shots, though the exact number depends on whether you are using the self-heating feature for cold water or using pre-heated water. Using cold water requires more power to heat the internal element, which will reduce the total number of shots per charge compared to using hot water.

With 20 bars of pressure, the Heropresso generates enough force to produce a genuine crema and a rich, full-bodied shot. While it won't replace a high-end commercial machine, it is significantly more capable than standard portable manual presses.

Cleaning is straightforward. After each use, discard the spent grounds and rinse the portafilter and water chamber. Because the unit is compact and self-contained, it is best to wipe down the exterior with a damp cloth and ensure the internal components are dry before storing.

For the best results, use a fine espresso grind. Because the extraction time is relatively short, a fine grind ensures the water flows through the coffee with enough resistance to create a balanced, flavorful shot.