This item is discontinued and replaced with Giotto Plus PID. Information herein for reference only.
Rocket Giotto Premium Plus HX E61 Espresso machine
The Rocket Giotto Premium plus is made by Rocket Espresso Company. Rocket was newly established in Italy in 2007 to begin the production of Rocket machines. They have acquired the name Giotto and begun to manufacture the Rocket Giotto Premium and introduce a slightly cheaper model with flat side panels, Rocket Cellini Premium plus. These are made similar to the original ECM Giotto espresso machines that were made by ECM Milano but include some changes specifically designed for today’s market to save manufacturing costs and transfer the savings to you.
On the design part, the feet are newly designed and the tray and its grate is now shaped differently and nicely. However, nickel plated side panels are not available with Rocket machines anymore as being used originally in the ECM Giotto Premium espresso machines by ECM Milano. Some technical differences include commercial Sirai pressurestat and longer wider diameter piping between the grouphead and boiler.
Giotto Premium Plus is simple to use, just push the lever all the way up and the brewing process will start, to stop the coffee flow push the lever back all the way down. Can't be simpler than that!
Legendary E61 Grouphead is a professional heavy duty brewing group made of marine grade brass. Like similar espresso machines in its class, the Rocket Giotto Premium Plus espresso machines use an E61 grouphead, 9 lbs of solid brass, hand polished and nickel plated. The E-61 is unique, it is always hot and ready for brewing. A Thermosyphon circulation system inside the brew group circle hot water through the grouphead all the time. However, The Giotto Premium Plus has longer bigger diameter copper pipe between the boiler and the grouphead. Therefore, it is recommended to flash about 50-60ml of water (blank shot) or 10-12 seconds to bring it down before an actual espresso shot. This should relief pressure and recommended to get the actual controlled water temperature in the boiler exit the grouphead for the actual espresso shot brewing.
Sirai Pressurestat (P-stat) - If you use much steaming for milk base coffee drinks, you can adjust the pressurestat higher. If you are more into espresso, you may want to adjust it lower. The downside of higher setting is that you may need to flush even more water before each espresso shot and if its too high, you may get burnt coffee. Since pressurestats does not give an indication of actual water temperature, to test the actual water temperature, an external thermometer is required or a PID temperature control. Sirai pressurestat is widely used in commercial machines with bigger size boilers and higher amperage. It is relatively reliable p-stat but a bit sensitive in deadband expansion, about 0.4 bars when new and up to 2 bars when the Teflon membrane gets dry or when there is scale. However, Sirai Pressurstat rebuilt membrane kit is available if you may need to DIY in the future.
HX Heat exchanger boiler allow you to brew and steam milk at the same time. The1.8L boiler in the Giotto Premium plus is made of copper, brass plates and is nickel plated. The nickel plating does not add thermal stability but help prevent copper oxidation. Once the boiler reach the right pressure, you can make espresso and cappuccino same time.
Pre Infusion is an E61 grouphead feature - a common element in All E61 group head espresso machines with manual lever. It is a step just before the brewing process starts. The pre step is engaged when lifting the lever to a middle point prior to engaging the pump at its upper position. Doing so, the ground coffee in the portafilter handle is first moisturized leading to uniform extraction and prefect flow all around the ground coffee. The result in maximum extraction and a nice flat used coffee cookie. If the machine stayed on standby longer than 15-20 minutes, it is recommended to run blank shot first.
Standard round Boiler pressure gauge is located on the front of the espresso machine, let you know when the machine is ready to brew coffee.
Vacuum breaker valve protects the boiler from backing milk into the boiler after steaming. The expansion valve releases pressure from the boiler when necessary.
Manual Relief Valve - In the Rocket Giotto Premium plus espresso machine there is only one main on/off power switch and a lever. When you first turn the espresso machine on, the green light will turn on and the boiler starts to heat. After few minutes, the pressure gauge will show between 0.8-1.2 bars and the machine is ready to go. From this moment on, the lever is the only thing you need to work with to make coffee. When you pull the lever up you turn the pump on and water will come out from the grouphead. When you push the lever all the way down you stop brewing and it opens the manual pressure relief valve. The pressure relief valve release excess water from the portafilter holder to the tray and by that dries the ground used coffee in the portafilter handle so its packed nicely into a cookie shape, easier to knock it out.
Giotto Premium plus has electronic water sensor located just under the water tank. This sensor has important role. It shuts off the heating element when the machine runs out of water in the water tank. Failure of tank water level sensor or inaccuracy may lead to over heating without water and can cause total damage to the boiler. Some other similar espresso machines will turn the whole machine off. The Giotto Premium sensor also sense the water level in the tank, advising you by flashing the light that its time to refill.
** Please note that scale and sediment free water is a requirement for use with the Giotto Premium plus. You can not use in tank water filter softener like any other machine because there are no pipes in the water tank. If you use non filtered water, the electronic sensor inside the Giotto Premium plus water tank can easily fail to perform or oxide due to sediment or other minerals. If you decide to use reverse osmosis water, it is recommended to add 1 cup of mineral filtered water to each tank so the electronic sensor could perform.
Two commercial portafilter handles included, one with single filter basket and single spout for one shot espresso and the other with double filter basket and dual spouts for two cups. Both portafilter handles are commercial size 58 mm diameter made of chrome-plated brass for best temperature stability.
Giotto Premium plus has strong steam power due to its HX 1.8 liters boiler horizontally positioned. The Giotto Premium plus is always ready for you to steam and froth with. In case you fill steam power reduction, Giotto Premium plus has quick boiler recovery time due to its 1200 watts heating element.
Separate Stainless steel wand for hot water and one for steaming/ frothing milk.
Swivel base Anti burn wands for hot water and for steaming/ frothing milk. The new generation wands with double insulation layers let you touch the wand with bare hands without burning.
Special & Convenience:
The top of Giotto Premium espresso machine is a good cup warmer for keeping your cups warm. It has dual stainless steel layers with specially designed venting holes that let hot air rising up from the boiler to heat the cups but not letting any water from the cups coming down into the machine. Since there is no thermal insulation to the boiler, the top tray can get relatively hot.
Large water tank contains up to 2.9 Liters of water, more than enough to make 100 espresso shots. It has 2 handles for easy lift for refill.
Body: The chassis and front of the Rocket Giotto Premium plus is made of black metal. The outside panels are made of polished stainless steel.
Dimensions: W 12.5" x H 13.8" x D 16.8"
Weight: 23 kgs
Optional: direct-connect water kit.