Dual Boiler Espresso - Dedicated brew and steam boilers promise better brew temperature for your espresso. Pro Steam Paddles - Activate steam or hot water with a quick tap of the paddle. PID Temperature Control - Manage both brew and steam temperatures with to-the-degree accuracy using the front-mounted PID controls. Shot Timer - The PID screen doubles as a shot timer during your shot. Low Power Eco Mode - A low-power eco mode lowers your boiler temperatures to save energy costs while still offering faster heat-up to brew temp. Accessible OPV - A small hatch just under the drip tray gives access to an adjustable OPV to customize your brew pressure. Made in Milan - The Diletta Alto is built by hand in Milan, Italy. Reach new espresso heights with the Diletta Alto Espresso Machine. Diletta's first dual boiler, the Alto features PID-controlled brew and steam boilers for best in class temperature management. Only an inch wider than the original Diletta Bello, the Alto still manages to fit a 0.75L brew boiler and a 1.6L steam boiler in its counter-friendly case. Inside, all the user-friendly features found in the Bello+ make an appearance, including favorites like on-the-fly temperature controls, automatic shot timing, programmable preinfusion, and low power eco-mode. Experienced baristas will also love the Alto's upgrade to sprung valves with tap-to steam controls, and a top-accessible OPV valve for brew pressure adjustment. For those looking for even more espresso control, the Alto can also be had in an upgraded Flow Control version.