About this item Too coarse a grind, too little coffee, or insufficiently tamping the grounds before brewing can all lead to inadequate pressure for a proper brew. It is important to note that the amount of espresso extracted will vary depending on the grind size and amount and reprogramming may be needed when the size and amount are adjusted.Please refer to user guide or user manual or user guide (provided below in PDF) before first use Durable stainless steel construction and maintains consistent brew speed: 1-cup p/min Automatic keep warm mode. Volts -120V, 60Hz Cool-touch handle and lid knob with rolled edges for safe and easy handling Product Built to North American Electrical Standards