With the instant version ("I") you widen the Rex-Royal S500 to an MCSTI. As a result it becomes a complete solution that leaves no desires unfulfilled. In addition to the perfect milk foam with regards to consistency and quality, you can also prepare chocolate/vanilla creations or even coffee and chocolate mixed drinks with the two integrated instant containers. Enjoy all these drinks at the push of a button. With a hot water output of up to 58 litres per hour, the S500 is also unique in this aspect. Equipped as standard with two precise grinders, all S500 models can be optionally equipped with a third.