It may have moved to DiscoverGourmet.com ». Most of the machines on the market today use an aluminum boiler, lined with stainless steel. What’s the Difference? The only way around that is to simply practice with it until you get to know the equipment. Sign up to receive special deals & new arrivals info. With a transparent water tank you can easily see when it needs to be filled up. Pressure and heat up are great, especially with a PID temp controller added. This is a suitable machine for people making between 1 &10 coffees in a session. A very neat and nice little … I am thinking the milk frothing devise has died? Makes a great coffee. Love it - highly recommended.