
I have always liked Kees Van Der Westen Espresso machines, ever since I worked on the Kees Mistral at
Mecca Espresso Bar in Sydney I have loved the design and how they perform. And since then I have had some amazing espresso off the Mirage and in particularly the Mirage Idrocompresso, and more recently playing on the Speedster, could this be the best espresso machine on the market?
And so when I had the chance to jump on a train from Amsterdam and travel south to Eindhoven where Kees lives and works I was quite excited (even though I didn't have my bags).
It didn't surprise me when Kees picked me up in this style, a man who makes espresso machines with such awesome design would obviously drive a cool car like this.
In the early days Kees would use this machine at trade shows to attract attention, it is basically a Speedster with some creative lights and all the internals exposed a great way to get attention and then explain to people what's on the inside. And typical Kees style.
I have always thought the Kees Van Der Westen Espressonistic Works Mirage pulls a beautiful shot, and this means that the machine is doing the job that espresso machines should do, control of temp, flow rate etc. But I have never really known exactly why, so I was very grateful that Kees took the time to explain to me what he has done with the Mirage to achieve a machine that performs as well as the Mirage performs.

He has put smaller restrictors on the top of the boiler in the thermo syphon system to slow the flow rate of the water down which means you can have a cooler brewing temp in relation to the steam pressure, so you can have a higher steam pressure and still have accurate brewing temp. Yes this is nothing new but one cool thing you can have on your Mirage if you choose is a small tap on the top of the thermo syphon system so that you can adjust the size of the restriction giving you temperature control up or down when on any given boiler pressure setting.
Kees has also made the mushroom cup inside the E61 head bigger allowing for a larger amount of water a little like another small boiler. And he has moved things around in the head so that the water enters the mushroom cup from the bottom side of the thermo siphon system where it is cooler and more importantly more stable and not from the top. He has done this because the water circling through/around the thermo siphon system travels up through the heat exchanger around down and up again continuously but when you hit the brewing cycle this is kind of reversed and the group head takes 80% of the water from the bottom/cooler part of the thermo siphon system and 20% from the top, so why not work with this.
He has added to this lengthening the needle on the inside of the heat exchanger in the boiler where the cool water enters, so that the colder water circling through this needle travels further up inside the boiler which gives this water more time to achieve stability rather than the standard small needle where the water travels in and very quickly enters the hotter water creating temperature fluctuation. Especially when the brewing cycle is activated and sucking water from here (the bottom of the boiler/heat exchanger where the cold water is entering) which has not had time to heat up because of the small needle. But rather have a longer needle traveling right up the length of the inside of the boiler, this way the cold water will heat up and when the brewing cycle is activated sucking water from the bottom this water if still not up to temp has to then travel all the way back down by which time the group head has probably taken all it needs and this water will be much more likely to be up to temp.
Another cool thing Kees has done with the Idrocompresso leaver machine is the option you can have of a internal purge before brewing. We all know that we need to purge the group head, how much we need to purge will depend on the different makes and models. The problem with purging on a lever machine is you need to pull the bloody heavy handle down each time just a touch, not too much or water will go everywhere (very messy). If you like on the Idrocompresso you can have a small button that will cause an internal purge before brewing each time saving you the hassle of purging with the lever which you will know is quite a task if you have ever had a go. And i might add here that the lever in this case the Mirage Idrocompresso is the original pressure and temperature profiling.
I would not be surprised if I got a lot of this information wrong and left a lot out so if anyone (Kees?) feels like sending me some additions to this or corrections please do, Kees only spent an hour or so explaining so I do not expect to take everything in on such a short time. But I was very impressed none the less.
A Mirage on the way

An Idrocompresso on the way

We then went out for dinner, its a hard life!